pycurl.h: fatal error: openssl/ssl.h: No such file or directory

If you encounter this error trying to install a pip module or compile a program under the console you surely miss OpenSSL development packages!
pip also may build a packages in your system and it could depend on generic library headers like in this case OpenSSL, which the installer (pip) won’t bring them and it will output an error as you can see

myuser@srv # sudo pip install pycurl pygeoip psutil
Collecting pycurl
  Using cached https://files.pythonhosted.org/packages/e8/e4/0dbb8735407189f00b33d84122b9be52c790c7c3b25286826f4e1bdb7bde/pycurl-7.43.0.2.tar.gz
Requirement already satisfied (use --upgrade to upgrade): pygeoip in /usr/local/lib/python2.7/dist-packages
Requirement already satisfied (use --upgrade to upgrade): psutil in /usr/lib/python2.7/dist-packages
Building wheels for collected packages: pycurl
  Running setup.py bdist_wheel for pycurl ... error
  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-AbCshS/pycurl/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmpqVNq1upip-wheel- --python-tag cp27:
  Using curl-config (libcurl 7.47.0)
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-2.7
  creating build/lib.linux-x86_64-2.7/curl
  copying python/curl/__init__.py -> build/lib.linux-x86_64-2.7/curl
  running build_ext
  building 'pycurl' extension
  creating build/temp.linux-x86_64-2.7
  creating build/temp.linux-x86_64-2.7/src
  x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -DPYCURL_VERSION="7.43.0.2" -DHAVE_CURL_SSL=1 -DHAVE_CURL_OPENSSL=1 -DHAVE_CURL_SSL=1 -I/usr/include/python2.7 -c src/docstrings.c -o build/temp.linux-x86_64-2.7/src/docstrings.o
  In file included from src/docstrings.c:4:0:
  src/pycurl.h:164:28: fatal error: openssl/ssl.h: No such file or directory
  compilation terminated.
  error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
  
  ----------------------------------------
  Failed building wheel for pycurl
  Running setup.py clean for pycurl
Failed to build pycurl
Installing collected packages: pycurl
  Running setup.py install for pycurl ... error
    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-AbCshS/pycurl/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-oea_jq-record/install-record.txt --single-version-externally-managed --compile:
    Using curl-config (libcurl 7.47.0)
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-2.7
    creating build/lib.linux-x86_64-2.7/curl
    copying python/curl/__init__.py -> build/lib.linux-x86_64-2.7/curl
    running build_ext
    building 'pycurl' extension
    creating build/temp.linux-x86_64-2.7
    creating build/temp.linux-x86_64-2.7/src
    x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -DPYCURL_VERSION="7.43.0.2" -DHAVE_CURL_SSL=1 -DHAVE_CURL_OPENSSL=1 -DHAVE_CURL_SSL=1 -I/usr/include/python2.7 -c src/docstrings.c -o build/temp.linux-x86_64-2.7/src/docstrings.o
    In file included from src/docstrings.c:4:0:
    src/pycurl.h:164:28: fatal error: openssl/ssl.h: No such file or directory
    compilation terminated.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    
    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-AbCshS/pycurl/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-oea_jq-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-AbCshS/pycurl/
You are using pip version 8.1.1, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command

Keep on reading!

Ubuntu AttributeError: ‘module’ object has no attribute ‘SSL_ST_INIT’

If you install libraries with

pip

command you might find yourself in the following situation:

root@srv:~# pip
Traceback (most recent call last):
  File "/usr/bin/pip", line 9, in <module>
    from pip import main
  File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 13, in <module>
    from pip.exceptions import InstallationError, CommandError, PipError
  File "/usr/lib/python2.7/dist-packages/pip/exceptions.py", line 6, in <module>
    from pip._vendor.six import iteritems
  File "/usr/lib/python2.7/dist-packages/pip/_vendor/__init__.py", line 64, in <module>
    vendored("cachecontrol")
  File "/usr/lib/python2.7/dist-packages/pip/_vendor/__init__.py", line 36, in vendored
    __import__(modulename, globals(), locals(), level=0)
  File "/usr/share/python-wheels/CacheControl-0.11.5-py2.py3-none-any.whl/cachecontrol/__init__.py", line 9, in <module>
  File "/usr/share/python-wheels/CacheControl-0.11.5-py2.py3-none-any.whl/cachecontrol/wrapper.py", line 1, in <module>
  File "/usr/share/python-wheels/CacheControl-0.11.5-py2.py3-none-any.whl/cachecontrol/adapter.py", line 3, in <module>
  File "/usr/share/python-wheels/requests-2.9.1-py2.py3-none-any.whl/requests/__init__.py", line 53, in <module>
  File "/usr/share/python-wheels/urllib3-1.13.1-py2.py3-none-any.whl/urllib3/contrib/pyopenssl.py", line 54, in <module>
  File "/usr/local/lib/python2.7/dist-packages/OpenSSL/__init__.py", line 8, in <module>
    from OpenSSL import rand, crypto, SSL
  File "/usr/local/lib/python2.7/dist-packages/OpenSSL/SSL.py", line 124, in <module>
    SSL_ST_INIT = _lib.SSL_ST_INIT
AttributeError: 'module' object has no attribute 'SSL_ST_INIT'

Keep on reading!

New Redis server (4.0.9) in Ubuntu 16.04 LTS

One of our critical service was under Ubuntu 16.04 LTS (and is scheduled for update, but this a another story!) and how it always happens other parts of our systems use new versions of Ubuntu. But the latest version in Ubuntu 16.04 is 3.0.6 https://packages.ubuntu.com/xenial-updates/redis-server.
Here you can find all the redis server versions available in the supported Ubuntu distributions: https://packages.ubuntu.com/search?keywords=redis-server&searchon=names
Keep on reading!

apt-mark – upgrade with the exception of certain packages

If you are in a situation when you want to upgrade your system, but do not want to upgrade a certain software in it you can just instruct apt not to upgrade these packages with:

apt-mark hold <package name(s)>

Here is how you can block updating 4 packages – ca-certificates, firefox, ghostscript, linux-firmware. First we update and upgrade and you can see there is no packages to keep back, and then we use apt-mark to “hold” package “linux-firmware” and ca-certificates, firefox, ghostscript at once. Initiating apt upgrade again will give you “The following packages have been kept back:” and it will include all packages, which will not be upgraded (it will include dependencies, which require some of the blocked packages).
Keep on reading!

Rebuild the official Ubuntu kernel – Ubuntu 16.04 LTS

There are multiple reasons to rebuild the official kernel of a Linux distro but this is not the purpose of this article

just cannot miss the chance to write that all the kernels are built therefore optimized for the very first 64bit Intel/AMD processor! But come on who wants the most important piece of software to be optimized not for his new and expensive processor but for one released 15 years ago???

. Here we are going to show you how to recompile the latest official Ubuntu kernel of Ubuntu 16.04 LTS – the one, which comes with the apt packages system, because this kernel comes with the latest and greatest patches of the Ubuntu team. You should not confuse this howto with the one, which compile a vanilla kernel or the mainline kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/. So if you want a new kernel or the latest from kernel.org this is the right tutorial for Ubuntu – Build your own kernel under Ubuntu using mainline (latest) kernel. The official latest kernel in the Ubuntu repository is not always the latest one from kernel.org, but you can be sure it is probably most secure one, because there are additional modifications, configurations and tests by the team. Here you can see what versions of the kernel are the officials in Ubuntu: https://wiki.ubuntu.com/Kernel/Support

Keep on reading!

List all kernels available to install under Ubuntu

Here is the fast command to see which Linux kernels are available to install from the Ubuntu package management system:

apt update
apt list linux-*image-*

Always update to download the latest metadata files for the available packages and the list with a pattern. In our case we want the Ubuntu kernels and they start with “linux-“, before it was easy linux-image-*, but now there are two types of kernels:

  1. Signed Linux kernel with name starting “linux-signed-image-” (and alias is “linux-image-“) – “Signed with the Ubuntu EFI key”, which means you should have UEFI BIOS and unsigned (with two words – “more security”)
  2. Good old kernel format (so no signing) with name starting “linux-image-unsigned-” – to be sure you pull the unsigned version

And you can use:

apt search linux-*image-*

to see the kernels available and their descriptions.
Keep on reading!

Ubuntu 16/18 LTS – load a new kernel without rebooting the server

Here are the commands needed to load a new kernel without rebooting your server or desktop computer. Why you need this? As said in our first article for CentOS 7 – sometime rebooting a server could take 5 to 10 minutes and loading a new kernel is just up to a minute. In fact in most cases loading the new kernel and starting the system then is just under 20-30 seconds, so upgrading your server even with new kernel is super easy lately. We tested it on Ubuntu 16 and Ubuntu 18 servers and it was successful. The system uses systemd and the process is really easy and safe for the systems.

When the processes is initiated the system shutdowns normally (shutting down all running service with systemd) and then load the system immediately with the new kernel and starts the services as usual!

So no need to worry about unflushed data or not proper shutdown of a service! It’s like a normal reboot but without a hardware reboot and is a lot faster!
Here is what is required to load a kernel without hardware rebooting your computer box:

  1. kexec-tools
  2. Load the new kernel, initram file and the command line arguments with “kexec”
  3. Start a systemd target – kexec.target

Ubuntu 16/18 LTS using kexec to load a new kernel

The real commands only for Ubuntu 16/18 LTS:

sudo apt -y install kexec-tools
sudo kexec -l /boot/vmlinuz-4.15.0-33-generic --initrd=/boot/initrd.img-4.15.0-33-generic --command-line="root=UUID=061b2936-34bf-4da3-b7d2-b8bde0899f03 ro  quiet splash"
sudo systemctl start kexec.target

Here is a real world example with all the output:
And again update your system to see if there is a new kernel and install “kexec-tools”. In our case indeed there is a new kernel – vmlinuz-4.15.0-33-generic

myuser@srv:~$ sudo apt -y upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following package was automatically installed and is no longer required:
  libllvm5.0
Use 'sudo apt autoremove' to remove it.
The following NEW packages will be installed:
  amd64-microcode autotools-dev dblatex debhelper dh-strip-nondeterminism docbook-dsssl docbook-utils docbook-xml docbook-xsl fonts-lato fonts-lmodern fonts-texgyre
  intel-microcode iucode-tool jadetex javascript-common kernel-common kernel-package kernel-patch-scripts kernel-wedge kerneloops kerneloops-applet kernelshark kerneltop
  libfile-homedir-perl libfile-stripnondeterminism-perl libfile-which-perl libjs-jquery libllvm6.0 libmail-sendmail-perl libosp5 libostyle1c2 libpotrace0 libptexenc1
  libqpdf21 libruby2.3 libsgmls-perl libsp1c2 libsynctex1 libsys-hostname-long-perl libtexlua52 libtexluajit2 libwebpdemux1 libxml2-utils libzzip-0-13
  linux-headers-4.15.0-33 linux-headers-4.15.0-33-generic linux-image-4.15.0-33-generic linux-modules-4.15.0-33-generic linux-modules-extra-4.15.0-33-generic lmodern lynx
  lynx-common openjade po-debconf preview-latex-style prosper ps2eps python-apt rake ruby ruby-did-you-mean ruby-minitest ruby-net-telnet ruby-power-assert ruby-test-unit
  ruby2.3 rubygems-integration sgml-data sgmlspl sp tex-common tex-gyre texlive texlive-base texlive-bibtex-extra texlive-binaries texlive-extra-utils texlive-font-utils
  texlive-fonts-recommended texlive-fonts-recommended-doc texlive-generic-recommended texlive-latex-base texlive-latex-base-doc texlive-latex-extra
  texlive-latex-extra-doc texlive-latex-recommended texlive-latex-recommended-doc texlive-luatex texlive-math-extra texlive-pictures texlive-pictures-doc texlive-pstricks
  texlive-pstricks-doc tipa trace-cmd xmlto xsltproc
The following packages will be upgraded:
.....
.....
Running mktexlsr /var/lib/texmf ... done.
Building format(s) --all.
        This may take some time... done.
Processing triggers for linux-image-4.15.0-33-generic (4.15.0-33.36~16.04.1) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.15.0-33-generic
/etc/kernel/postinst.d/vboxadd:
VirtualBox Guest Additions: Building the VirtualBox Guest Additions kernel modules.
/etc/kernel/postinst.d/zz-update-grub:
Generating grub configuration file ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Found linux image: /boot/vmlinuz-4.15.0-33-generic
Found initrd image: /boot/initrd.img-4.15.0-33-generic
Found linux image: /boot/vmlinuz-4.13.0-36-generic
Found initrd image: /boot/initrd.img-4.13.0-36-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin
done

myuser@srv:~$ sudo apt -y install kexec-tools
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  libllvm5.0
Use 'sudo apt autoremove' to remove it.
The following NEW packages will be installed:
  kexec-tools
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 77,4 kB of archives.
After this operation, 276 kB of additional disk space will be used.
Get:1 http://bg.archive.ubuntu.com/ubuntu xenial-updates/main amd64 kexec-tools amd64 1:2.0.16-1ubuntu1~16.04.1 [77,4 kB]
Fetched 77,4 kB in 0s (707 kB/s)      
Preconfiguring packages ...
Selecting previously unselected package kexec-tools.
(Reading database ... 253895 files and directories currently installed.)
Preparing to unpack .../kexec-tools_1%3a2.0.16-1ubuntu1~16.04.1_amd64.deb ...
Unpacking kexec-tools (1:2.0.16-1ubuntu1~16.04.1) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for systemd (229-4ubuntu21.4) ...
Processing triggers for ureadahead (0.100.0-19) ...
Setting up kexec-tools (1:2.0.16-1ubuntu1~16.04.1) ...
Generating /etc/default/kexec...
Processing triggers for systemd (229-4ubuntu21.4) ...
Processing triggers for ureadahead (0.100.0-19) ...

     ┌──────────────────────────────────────────────────────────────────┤ Configuring kexec-tools ├───────────────────────────────────────────────────────────────────┐
     │                                                                                                                                                                │ 
     │ If you choose this option, a system reboot will trigger a restart into a kernel loaded by kexec instead of going through the full system boot loader process.  │ 
     │                                                                                                                                                                │ 
     │ Should kexec-tools handle reboots (sysvinit only)?                                                                                                             │ 
     │                                                                                                                                                                │ 
     │                                                 <Yes>                                                    <No>                                                  │ 
     │                                                                                                                                                                │ 
     └────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ 

On the above configuration question mark “” and press Enter.

So we performed an update and there was a new kernel vmlinuz-4.15.0-33-generic, which we would like to load without hardware reboot.
Here is our new kernel in “/boot”

myuser@srv:~$ ls -altr /boot/
total 130420
-rw-r--r--  1 root root   184840 Jan 28  2016 memtest86+_multiboot.bin
-rw-r--r--  1 root root   184380 Jan 28  2016 memtest86+.elf
-rw-r--r--  1 root root   182704 Jan 28  2016 memtest86+.bin
-rw-------  1 root root  3879946 Feb 17  2018 System.map-4.13.0-36-generic
-rw-r--r--  1 root root     2850 Feb 17  2018 retpoline-4.13.0-36-generic
-rw-r--r--  1 root root   213220 Feb 17  2018 config-4.13.0-36-generic
-rw-r--r--  1 root root  1501359 Feb 17  2018 abi-4.13.0-36-generic
-rw-r--r--  1 root root  7710912 May 17 16:50 vmlinuz-4.13.0-36-generic
-rw-------  1 root root  4041375 Aug 16 00:00 System.map-4.15.0-33-generic
-rw-r--r--  1 root root        0 Aug 16 00:00 retpoline-4.15.0-33-generic
-rw-r--r--  1 root root   216913 Aug 16 00:00 config-4.15.0-33-generic
-rw-r--r--  1 root root  1537455 Aug 16 00:00 abi-4.15.0-33-generic
-rw-------  1 root root  8108600 Aug 16 21:58 vmlinuz-4.15.0-33-generic
drwxr-xr-x 24 root root     4096 Sep  7 14:15 ..
-rw-r--r--  1 root root 51290506 Sep  7 14:15 initrd.img-4.13.0-36-generic
-rw-r--r--  1 root root 54451680 Sep  7 14:15 initrd.img-4.15.0-33-generic
drwxr-xr-x  3 root root     4096 Sep  7 14:15 .
drwxr-xr-x  5 root root     4096 Sep  7 14:16 grub

Now we know the kernel and initram file names we just check the kernel arguments in the kernel, load them with kexec and start an systemd target to load the new kernel:

myuser@srv:~$ grep vmlinuz-4.15.0-33-generic /boot/grub/grub.cfg 
        linux   /boot/vmlinuz-4.15.0-33-generic root=UUID=061b2936-34bf-4da3-b7d2-b8bde0899f03 ro  quiet splash $vt_handoff
                linux   /boot/vmlinuz-4.15.0-33-generic root=UUID=061b2936-34bf-4da3-b7d2-b8bde0899f03 ro  quiet splash $vt_handoff
                linux   /boot/vmlinuz-4.15.0-33-generic root=UUID=061b2936-34bf-4da3-b7d2-b8bde0899f03 ro  quiet splash $vt_handoff init=/sbin/upstart
                linux   /boot/vmlinuz-4.15.0-33-generic root=UUID=061b2936-34bf-4da3-b7d2-b8bde0899f03 ro recovery nomodeset 
myuser@srv:~$ sudo kexec -l /boot/vmlinuz-4.15.0-33-generic --initrd=/boot/initrd.img-4.15.0-33-generic --command-line="root=UUID=061b2936-34bf-4da3-b7d2-b8bde0899f03 ro  quiet splash"
myuser@srv:~$ sudo systemctl start kexec.target
Connection to srv closed by remote host.
Connection to srv closed.

Use the first line of the grep output above (or you can cat the file and see what is in it if you have any doubts) to take the proper kernel boot arguments and do not include anything starting with “$”.

As you can see systemd performs a normal shutdown of all services and targets.

main menu
Normal shutdown

The ssh connection is immediately closed because the reboot is initiated.
After 10-15 seconds our host is alive and the new kernel is loaded successfully:

root@test ~ $ ssh root@srv
root@srv's password: 
Last login: Wed Sep  5 17:15:08 2018 from test
[root@srv ~]# uname -a
Linux srv.local 4.15.0-33-generic #36~16.04.1-Ubuntu SMP Wed Aug 15 17:21:05 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
[root@srv ~]# 

Because we do not wanted to mess up the two output in one article we decided to split it in two separate ones, so here is the previous one for CentOS 7 – “CentOS 7 – load a new kernel without rebooting the CentOS 7 server”

Build your own kernel under Ubuntu using mainline (latest) kernel

Here we will show how to build your own kernel under Ubuntu 16/17/18. We are going to use

mainline kernel

because most of the cases when we need to build our own is when we need some new feature presented in the new kernels. So Ubuntu mainline kernels are selected new kernels, which are packed in deb packets for simplicity and can be used to test new features, but they are not supported by Ubuntu teams and you should test them really carefully if you want to use them in production!
The mainline kernels are here: http://kernel.ubuntu.com/~kernel-ppa/mainline/. This is the main address, where you could download the latest kernels and some other legacy one if you have old system.
This howto is based on https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel and https://wiki.ubuntu.com/Kernel/MainlineBuilds – we summarize the commands needed to build your new and latest kernel and show you some typical mistakes and problems during the process.
To show you more information our purpose will be to build the one of the latest kernels with low latency features enabled (Ubuntu has such type of kernel configuration)! And here is one of the most important dependency, which is not explicitly included or even mentioned in most of the tutorials for building your own kernels –

you MUST include new or even latest Linux firmware package

All Linux distros have a package or packages containing files with different firmware for multiple devices supported by the kernel modules. Basically firmware is used by a kernel module and it can be a micro code (program), which is uploaded in the device or just complete the kernel module to function properly with a device. Recent days firmware is like a black box the manufacturer of the devices pack a proprietary code in a firmware blob and the source code is unknown to the community.

The first thing you should do is to choose the kernel version you want to build. We want version 4.17.x as more stable of the latest 4.18, which was released a few days weeks ago (let’s wait for a month after the initial release before using it!).
So the main address is here http://kernel.ubuntu.com/~kernel-ppa/mainline/ and the kernel files, which we are going to use to rebuild are here http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.17.19/
Keep on reading!

Install xmr-stak 2.4 in a machine with NVIDIA video card under Ubuntu 18.04 LTS

This is simple “how to” to get started mining crypto currency with XMR-STAK using cryptonight algorithm like monero, electroneum, intensecoin and more. This time we are going to use PPA repository for the NVIDIA drivers and the CUDA toolkit. Installing the official NVIDIA driver we can use our ASUS ROG POSEIDON GTX 1080Ti Platinum Edition to mine along with our processor AMD Ryzen Threadripper 1950X (16 cores with 32 threads with 3.4GHz base frequency and boost to 4GHz).
XMR-STAK could be used only for CPU mining, but now we installed an NVIDIA card and Ubuntu 18.04 LTS. Ubuntu is installed with the default open source NVIDIA driver (nouveau), which is OK for every day and office use, but if you like to game or to mine you must install the proprietary driver shipped by NVIDIA. The following howto will show you how to do it!

Just follow the simple steps and you’ll have an optimized GPU and CPU miner for cryptonight crypto currencies:

STEP 1) Install Ubuntu 18.04 LTS.

If you do not have Ubuntu installed yet it is time to do it. You can see how easy is to do it here even if you have multiple systems installed – Install Ubuntu Desktop 18.04 LTS on a PC with existing windows 10 and linux If your machine is only for mining and you want to have only one system it’s even simpler and you can still follow the above howto!

STEP 2) Install NVIDIA proprietary driver and CUDA Toolkit

Here we show you a brief command set to execute, but if you want a detailed explanations you could check the two howtos on the subject: Install NVIDIA proprietary drivers on Ubuntu 18.0 LTS (x86_64) and Install NVIDIA Cuda on Ubuntu 18.04 LTS (x86_64)

myuser@srv:~$ sudo apt -y update
myuser@srv:~$ sudo add-apt-repository -y ppa:graphics-drivers/ppa
myuser@srv:~$ sudo apt -y update
myuser@srv:~$ sudo ubuntu-drivers autoinstall
myuser@srv:~$ sudo reboot
myuser@srv:~$ sudo apt install -y nvidia-cuda-toolkit gcc-6

Check if your driver is loaded successfully before continuing:

myuser@srv:~$ dmesg|grep -i nvidia
[    1.414268] nvidia: loading out-of-tree module taints kernel.
[    1.414273] nvidia: module license 'NVIDIA' taints kernel.
[    1.632334] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[    1.639698] nvidia-nvlink: Nvlink Core is being initialized, major device number 236
[    1.640031] nvidia 0000:0a:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem
[    1.640146] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  396.24.10  Tue Jul 10 10:00:18 PDT 2018 (using threaded interrupts)
[    1.647029] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms  396.24.10  Tue Jul 10 08:53:56 PDT 2018
[    1.648372] [drm] [nvidia-drm] [GPU ID 0x00000a00] Loading driver
[    1.648373] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:0a:00.0 on minor 0
[   37.086767] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 511
[   37.761570] caller os_map_kernel_space.part.7+0xda/0x120 [nvidia] mapping multiple BARs
[   38.532918] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.1/0000:0a:00.1/sound/card0/input16
[   38.532960] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.1/0000:0a:00.1/sound/card0/input17
[   38.532996] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.1/0000:0a:00.1/sound/card0/input18
[   38.533028] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:03.1/0000:0a:00.1/sound/card0/input19
[   40.851562] caller os_map_kernel_space.part.7+0xda/0x120 [nvidia] mapping multiple BARs
[   41.205592] nvidia-modeset: Allocated GPU:0 (GPU-3bad60bf-8ff7-4cba-8b51-a931299a56d8) @ PCI:0000:0a:00.0

STEP 3) Install dependencies for XMR-STAK

Around 380Mbytes of libraries and tools to be installed in addition.

myuser@srv:~$ sudo apt -y install libboost-all-dev libleveldb-dev libcurl4-openssl-dev libmicrohttpd-dev libminiupnpc-dev libgmp-dev libmicrohttpd-dev libssl-dev cmake build-essential screen git
Reading package lists... Done
Building dependency tree       
Reading state information... Done
build-essential is already the newest version (12.4ubuntu1).
build-essential set to manually installed.
The following additional packages will be installed:
  autotools-dev cmake-data dh-python gir1.2-harfbuzz-0.0 ibverbs-providers icu-devtools libboost-atomic-dev libboost-atomic1.65-dev libboost-atomic1.65.1
  libboost-chrono-dev libboost-chrono1.65-dev libboost-chrono1.65.1 libboost-container-dev libboost-container1.65-dev libboost-container1.65.1 libboost-context-dev
  libboost-context1.65-dev libboost-context1.65.1 libboost-coroutine-dev libboost-coroutine1.65-dev libboost-coroutine1.65.1 libboost-date-time-dev
  libboost-date-time1.65-dev libboost-dev libboost-exception-dev libboost-exception1.65-dev libboost-fiber-dev libboost-fiber1.65-dev libboost-fiber1.65.1
  libboost-filesystem-dev libboost-filesystem1.65-dev libboost-graph-dev libboost-graph-parallel-dev libboost-graph-parallel1.65-dev libboost-graph-parallel1.65.1
  libboost-graph1.65-dev libboost-graph1.65.1 libboost-iostreams-dev libboost-iostreams1.65-dev libboost-locale-dev libboost-locale1.65-dev libboost-log-dev
  libboost-log1.65-dev libboost-log1.65.1 libboost-math-dev libboost-math1.65-dev libboost-math1.65.1 libboost-mpi-dev libboost-mpi-python-dev libboost-mpi-python1.65-dev
  libboost-mpi-python1.65.1 libboost-mpi1.65-dev libboost-mpi1.65.1 libboost-numpy-dev libboost-numpy1.65-dev libboost-numpy1.65.1 libboost-program-options-dev
  libboost-program-options1.65-dev libboost-program-options1.65.1 libboost-python-dev libboost-python1.65-dev libboost-python1.65.1 libboost-random-dev
  libboost-random1.65-dev libboost-random1.65.1 libboost-regex-dev libboost-regex1.65-dev libboost-regex1.65.1 libboost-serialization-dev libboost-serialization1.65-dev
  libboost-serialization1.65.1 libboost-signals-dev libboost-signals1.65-dev libboost-signals1.65.1 libboost-stacktrace-dev libboost-stacktrace1.65-dev
  libboost-stacktrace1.65.1 libboost-system-dev libboost-system1.65-dev libboost-test-dev libboost-test1.65-dev libboost-test1.65.1 libboost-thread-dev
  libboost-thread1.65-dev libboost-timer-dev libboost-timer1.65-dev libboost-timer1.65.1 libboost-tools-dev libboost-type-erasure-dev libboost-type-erasure1.65-dev
  libboost-type-erasure1.65.1 libboost-wave-dev libboost-wave1.65-dev libboost-wave1.65.1 libboost1.65-dev libboost1.65-tools-dev libcurl4 libexpat1-dev libfabric1
  libgcrypt20-dev libglib2.0-dev libglib2.0-dev-bin libgmpxx4ldbl libgnutls-dane0 libgnutls-openssl27 libgnutls28-dev libgnutlsxx28 libgpg-error-dev libgraphite2-dev
  libharfbuzz-dev libharfbuzz-gobject0 libhwloc-dev libhwloc-plugins libhwloc5 libibverbs-dev libibverbs1 libicu-dev libicu-le-hb-dev libicu-le-hb0 libiculx60
  libidn2-0-dev libidn2-dev libjsoncpp1 libleveldb1v5 libltdl-dev libmicrohttpd12 libnl-route-3-200 libnuma-dev libopenmpi-dev libopenmpi2 libp11-kit-dev libpcre16-3
  libpcre3-dev libpcre32-3 libpcrecpp0v5 libpsm-infinipath1 libpython-dev libpython-stdlib libpython2.7-dev libpython3-dev libpython3.6-dev librdmacm1 librhash0
  libsnappy1v5 libssl-doc libtasn1-6-dev libtasn1-doc libtool libunbound2 libuv1 mpi-default-bin mpi-default-dev nettle-dev openmpi-bin openmpi-common python python-dev
  python-minimal python2.7 python2.7-dev python2.7-minimal python3-dev python3-distutils python3-lib2to3 python3.6-dev zlib1g-dev git-man liberror-perl libutempter0
Suggested packages:
  cmake-doc ninja-build libboost-doc graphviz libboost1.65-doc gccxml libmpfrc++-dev libntl-dev xsltproc doxygen docbook-xml docbook-xsl default-jdk fop libcurl4-doc
  libidn11-dev libkrb5-dev libldap2-dev librtmp-dev libssh2-1-dev libgcrypt20-doc libglib2.0-doc gmp-doc libgmp10-doc libmpfr-dev gnutls-doc gnutls-bin libgraphite2-utils
  libhwloc-contrib-plugins icu-doc leveldb-doc libtool-doc minissdpd openmpi-doc autoconf automaken gfortran | fortran95-compiler gcj-jdk gfortran python-doc python-tk git-daemon-run | git-daemon-sysvinit git-doc git-el git-email git-gui gitk gitweb git-cvs git-mediawiki git-svn byobu | screenie | iselect
  python2.7-doc binfmt-support
The following NEW packages will be installed:
  autotools-dev cmake cmake-data dh-python gir1.2-harfbuzz-0.0 ibverbs-providers icu-devtools libboost-all-dev libboost-atomic-dev libboost-atomic1.65-dev
  libboost-atomic1.65.1 libboost-chrono-dev libboost-chrono1.65-dev libboost-chrono1.65.1 libboost-container-dev libboost-container1.65-dev libboost-container1.65.1
  libboost-context-dev libboost-context1.65-dev libboost-context1.65.1 libboost-coroutine-dev libboost-coroutine1.65-dev libboost-coroutine1.65.1 libboost-date-time-dev
  libboost-date-time1.65-dev libboost-dev libboost-exception-dev libboost-exception1.65-dev libboost-fiber-dev libboost-fiber1.65-dev libboost-fiber1.65.1
  libboost-filesystem-dev libboost-filesystem1.65-dev libboost-graph-dev libboost-graph-parallel-dev libboost-graph-parallel1.65-dev libboost-graph-parallel1.65.1
  libboost-graph1.65-dev libboost-graph1.65.1 libboost-iostreams-dev libboost-iostreams1.65-dev libboost-locale-dev libboost-locale1.65-dev libboost-log-dev
  libboost-log1.65-dev libboost-log1.65.1 libboost-math-dev libboost-math1.65-dev libboost-math1.65.1 libboost-mpi-dev libboost-mpi-python-dev libboost-mpi-python1.65-dev
  libboost-mpi-python1.65.1 libboost-mpi1.65-dev libboost-mpi1.65.1 libboost-numpy-dev libboost-numpy1.65-dev libboost-numpy1.65.1 libboost-program-options-dev
  libboost-program-options1.65-dev libboost-program-options1.65.1 libboost-python-dev libboost-python1.65-dev libboost-python1.65.1 libboost-random-dev
  libboost-random1.65-dev libboost-random1.65.1 libboost-regex-dev libboost-regex1.65-dev libboost-regex1.65.1 libboost-serialization-dev libboost-serialization1.65-dev
  libboost-serialization1.65.1 libboost-signals-dev libboost-signals1.65-dev libboost-signals1.65.1 libboost-stacktrace-dev libboost-stacktrace1.65-dev
  libboost-stacktrace1.65.1 libboost-system-dev libboost-system1.65-dev libboost-test-dev libboost-test1.65-dev libboost-test1.65.1 libboost-thread-dev
  libboost-thread1.65-dev libboost-timer-dev libboost-timer1.65-dev libboost-timer1.65.1 libboost-tools-dev libboost-type-erasure-dev libboost-type-erasure1.65-dev
  libboost-type-erasure1.65.1 libboost-wave-dev libboost-wave1.65-dev libboost-wave1.65.1 libboost1.65-dev libboost1.65-tools-dev libcurl4 libcurl4-openssl-dev
  libexpat1-dev libfabric1 libgcrypt20-dev libglib2.0-dev libglib2.0-dev-bin libgmp-dev libgmpxx4ldbl libgnutls-dane0 libgnutls-openssl27 libgnutls28-dev libgnutlsxx28
  libgpg-error-dev libgraphite2-dev libharfbuzz-dev libharfbuzz-gobject0 libhwloc-dev libhwloc-plugins libhwloc5 libibverbs-dev libibverbs1 libicu-dev libicu-le-hb-dev
  libicu-le-hb0 libiculx60 libidn2-0-dev libidn2-dev libjsoncpp1 libleveldb-dev libleveldb1v5 libltdl-dev libmicrohttpd-dev libmicrohttpd12 libminiupnpc-dev
  libnl-route-3-200 libnuma-dev libopenmpi-dev libopenmpi2 libp11-kit-dev libpcre16-3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libpsm-infinipath1 libpython-dev
  libpython-stdlib libpython2.7-dev libpython3-dev libpython3.6-dev librdmacm1 librhash0 libsnappy1v5 libssl-dev libssl-doc libtasn1-6-dev libtasn1-doc libtool
  libunbound2 libuv1 mpi-default-bin mpi-default-dev nettle-dev openmpi-bin openmpi-common python python-dev python-minimal python2.7 python2.7-dev python2.7-minimal
  python3-dev python3-distutils python3-lib2to3 python3.6-dev zlib1g-dev git git-man liberror-perl libutempter0 screen
0 upgraded, 179 newly installed, 0 to remove and 26 not upgraded.
Need to get 76.9 MB of archives.
After this operation, 380 MB of additional disk space will be used.
Get:1 http://gb.archive.ubuntu.com/ubuntu bionic/main amd64 python2.7-minimal amd64 2.7.15~rc1-1 [1292 kB]
....
....

Tune the screen program (this is not mandatory, but is important to have good scrolling) and start screen.

myuser@srv:~$ echo "termcapinfo xterm* ti@:te@" >> ~/.screenrc
myuser@srv:~$ screen -R xmr-stak

STEP 4) Compile XMR-STAK

First get the sources from the official github repository. The master is now with tag 2.4.7. If you do not know how to work with git and want the exact tag version it is easy, just open in the browser “https://github.com/fireice-uk/xmr-stak” change “Branch:master” (click on it and a dropdown will appear, click the tab “Tag” and select your tag version) to “Tag:2.4.7” then click on “Clone or download” on the right and click on “Download ZIP” and it will offer you to download a zip file with the name 2.4.7.zip (here is the URL: https://codeload.github.com/fireice-uk/xmr-stak/zip/2.4.7).
This step it is important to note that we MUST build XMR-STAK with GNU GCC 6 (6.4.0) and the default GNU GCC in Ubuntu 18.04 LTS is 7 (7.3.0), so we export environment variables “CC” and “CXX” to use gcc-6. Exporting CC and CXX is enough to compile succeessfully no need to mess with “update-alternatives”.

myuser@srv:~$ git clone https://github.com/fireice-uk/xmr-stak
Cloning into 'xmr-stak'...
remote: Counting objects: 5078, done.
remote: Total 5078 (delta 0), reused 0 (delta 0), pack-reused 5078
Receiving objects: 100% (5078/5078), 1.48 MiB | 1.86 MiB/s, done.
Resolving deltas: 100% (3628/3628), done.
myuser@srv:~$ #or just download the tag version 2.4.7 from this url: https://codeload.github.com/fireice-uk/xmr-stak/zip/2.4.7 or as it was described above. This 3 lines are comments, if you want tag 2.4.7 just uncomment the second and the third lines
myuser@srv:~$ #wget https://codeload.github.com/fireice-uk/xmr-stak/zip/2.4.7
myuser@srv:~$ #unzip 2.4.7.zip
myuser@srv:~$ mkdir -p ./xmr-stak/build
myuser@srv:~$ cd ./xmr-stak/build
myuser@srv:~/xmr-stak/build$ export CFLAGS="-O2 -march=native -msse3 -fomit-frame-pointer -pipe"
myuser@srv:~/xmr-stak/build$ export CHOST="x86_64-pc-linux-gnu"
myuser@srv:~/xmr-stak/build$ export CXXFLAGS="${CFLAGS}"
myuser@srv:~/xmr-stak/build$ export LDFLAGS="-Wl,-O1"
myuser@srv:~/xmr-stak/build$ export CC=/usr/bin/gcc-6
myuser@srv:~/xmr-stak/build$ export CXX=/usr/bin/g++-6
myuser@srv:~/xmr-stak/build$ cmake ../
-- The C compiler identification is GNU 6.4.0
-- The CXX compiler identification is GNU 6.4.0
-- Check for working C compiler: /usr/bin/gcc-6
-- Check for working C compiler: /usr/bin/gcc-6 -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/g++-6
-- Check for working CXX compiler: /usr/bin/g++-6 -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Found CUDA: /usr (found suitable version "9.1", minimum required is "7.5") 
-- Looking for CL_VERSION_2_2
-- Looking for CL_VERSION_2_2 - found
-- Found OpenCL: /usr/lib/x86_64-linux-gnu/libOpenCL.so (found version "2.2") 
-- Found OpenSSL: /usr/lib/x86_64-linux-gnu/libcrypto.so (found version "1.1.0g") 
-- Configuring done
-- Generating done
-- Build files have been written to: /home/myuser/xmr-stak/build
myuser@srv:~/xmr-stak/build$ make -j 16
Scanning dependencies of target xmr-stak-c
[  8%] Building C object CMakeFiles/xmr-stak-c.dir/xmrstak/backend/cpu/crypto/c_jh.c.o
[  8%] Building C object CMakeFiles/xmr-stak-c.dir/xmrstak/backend/cpu/crypto/c_blake256.c.o
[  8%] Building C object CMakeFiles/xmr-stak-c.dir/xmrstak/backend/cpu/crypto/c_skein.c.o
[ 11%] Building C object CMakeFiles/xmr-stak-c.dir/xmrstak/backend/cpu/crypto/c_groestl.c.o
[ 14%] Building C object CMakeFiles/xmr-stak-c.dir/xmrstak/backend/cpu/crypto/c_keccak.c.o
[ 17%] Linking C static library bin/libxmr-stak-c.a
[ 17%] Built target xmr-stak-c
Scanning dependencies of target xmr-stak-backend
[ 20%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/version.cpp.o
[ 22%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/jconf.cpp.o
[ 25%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/backend/backendConnector.cpp.o
[ 28%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/misc/telemetry.cpp.o
[ 34%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/net/jpsock.cpp.o
[ 34%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/misc/executor.cpp.o
[ 37%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/http/httpd.cpp.o
[ 42%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/backend/cpu/hwlocMemory.cpp.o
[ 42%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/backend/cpu/jconf.cpp.o
[ 45%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/backend/cpu/crypto/cryptonight_common.cpp.o
[ 48%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/backend/cpu/minethd.cpp.o
[ 51%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/misc/console.cpp.o
[ 54%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/backend/globalStates.cpp.o
[ 57%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/http/webdesign.cpp.o
[ 60%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/misc/uac.cpp.o
[ 62%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/misc/utility.cpp.o
[ 65%] Building CXX object CMakeFiles/xmr-stak-backend.dir/xmrstak/net/socket.cpp.o
[ 68%] Linking CXX static library bin/libxmr-stak-backend.a
[ 68%] Built target xmr-stak-backend
[ 71%] Building NVCC (Device) object CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/nvcc_code/xmrstak_cuda_backend_generated_cuda_extra.cu.o
[ 74%] Building NVCC (Device) object CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/nvcc_code/xmrstak_cuda_backend_generated_cuda_core.cu.o
Scanning dependencies of target xmr-stak
Scanning dependencies of target xmrstak_opencl_backend
[ 77%] Building CXX object CMakeFiles/xmr-stak.dir/xmrstak/cli/cli-miner.cpp.o
[ 85%] Building CXX object CMakeFiles/xmrstak_opencl_backend.dir/xmrstak/backend/amd/jconf.cpp.o
[ 85%] Building CXX object CMakeFiles/xmrstak_opencl_backend.dir/xmrstak/backend/amd/amd_gpu/gpu.cpp.o
[ 85%] Building CXX object CMakeFiles/xmrstak_opencl_backend.dir/xmrstak/backend/amd/minethd.cpp.o
[ 88%] Linking CXX executable bin/xmr-stak
[ 88%] Built target xmr-stak
[ 91%] Linking CXX shared library bin/libxmrstak_opencl_backend.so
[ 91%] Built target xmrstak_opencl_backend
Scanning dependencies of target xmrstak_cuda_backend
[ 94%] Building CXX object CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/jconf.cpp.o
[ 97%] Building CXX object CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/minethd.cpp.o
[100%] Linking CXX shared library bin/libxmrstak_cuda_backend.so
[100%] Built target xmrstak_cuda_backend
myuser@srv:~/xmr-stak/build$

STEP 5) Execute XMR-STAK, but before you must execute some tuning exports for the GPU and the linux kernel

Now is the time to use XMR-STAK.

myuser@srv:~/xmr-stak/build$ sudo sysctl -w vm.nr_hugepages=128
myuser@srv:~/xmr-stak/build$ export GPU_FORCE_64BIT_PTR=0
myuser@srv:~/xmr-stak/build$ export GPU_MAX_HEAP_SIZE=100
myuser@srv:~/xmr-stak/build$ export GPU_USE_SYNC_OBJECTS=1
myuser@srv:~/xmr-stak/build$ export GPU_MAX_ALLOC_PERCENT=100
myuser@srv:~/xmr-stak/build$ export GPU_SINGLE_ALLOC_PERCENT=100
myuser@srv:~/xmr-stak/build$ cd ./bin
myuser@srv:~/xmr-stak/build/bin$ ls -la
total 35804
drwxrwxr-x 2 myuser myuser     4096 Jul 19 16:13 .
drwxrwxr-x 4 myuser myuser     4096 Jul 19 16:05 ..
-rw-rw-r-- 1 myuser myuser  1614230 Jul 19 16:05 libxmr-stak-backend.a
-rw-rw-r-- 1 myuser myuser    75182 Jul 19 16:05 libxmr-stak-c.a
-rwxrwxr-x 1 myuser myuser 32570440 Jul 19 16:13 libxmrstak_cuda_backend.so
-rwxrwxr-x 1 myuser myuser  1307456 Jul 19 16:06 libxmrstak_opencl_backend.so
-rwxrwxr-x 1 myuser myuser  1075784 Jul 19 16:06 xmr-stak
myuser@srv:~/xmr-stak/build/bin$ ./xmr-stak 

Always execute the exports before running the xmr-stak binary.
As you can see the XMR-STAK is in

./bin/xmr-stak

under the “~/xmr-stak/build”.

STEP 6) Mining with XMR-STAK.

Execute the program and follow the first run questions. Here you can see a MONERO configuration and the first run – Mining Monero with xmr-stak 2.4 in a machine with NVIDIA video card under Ubuntu 18.04 LTS.

* Options of the XMR-STAK program

As you can see all the algo you can use with this program – new and classic (the old) criptonight coins to mine like Monero, Electroneum, IntenseCoin and many more!

myuser@srv:~/xmr-stak/build/bin$ ./xmr-stak --help
Usage: xmr-stak [OPTION]...
 
  -h, --help                 show this help
  -v, --version              show version number
  -V, --version-long         show long version number
  -c, --config FILE          common miner configuration file
  -C, --poolconf FILE        pool configuration file
  --benchmark BLOCKVERSION   ONLY do a benchmark and exit
  --benchwait WAIT_SEC             ... benchmark wait time
  --benchwork WORK_SEC             ... benchmark work time
  --noCPU                    disable the CPU miner backend
  --cpu FILE                 CPU backend miner config file
  --noAMD                    disable the AMD miner backend
  --noAMDCache               disable the AMD(OpenCL) cache for precompiled binaries
  --openCLVendor VENDOR      use OpenCL driver of VENDOR and devices [AMD,NVIDIA]
                             default: AMD
  --amd FILE                 AMD backend miner config file
  --noNVIDIA                 disable the NVIDIA miner backend
  --nvidia FILE              NVIDIA backend miner config file
  -i --httpd HTTP_PORT       HTTP interface port
 
The following options can be used for automatic start without a guided config,
If config exists then this pool will be top priority.
  -o, --url URL              pool url and port, e.g. pool.usxmrpool.com:3333
  -O, --tls-url URL          TLS pool url and port, e.g. pool.usxmrpool.com:10443
  -u, --user USERNAME        pool user name or wallet address
  -r, --rigid RIGID          rig identifier for pool-side statistics (needs pool support)
  -p, --pass PASSWD          pool password, in the most cases x or empty ""
  --use-nicehash             the pool should run in nicehash mode
  --currency NAME            currency to mine

Supported coin options: 
        - aeon7
        - bbscoin
        - bittube
        - cryptonight
        - cryptonight_bittube2
        - cryptonight_masari
        - cryptonight_haven
        - cryptonight_heavy
        - cryptonight_lite
        - cryptonight_lite_v7
        - cryptonight_lite_v7_xor
        - cryptonight_v7
        - cryptonight_v7_stellite
        - graft
        - haven
        - intense
        - masari
        - monero7
        - ryo
        - stellite
        - turtlecoin

Version: xmr-stak 2.4.7 c5f0505
Brought to by fireice_uk and psychocrypt under GPLv3.

* Troubleshooting – the right version of GNU GCC

You must use GNU GCC 6, because version above 6 (7 and 8) are not supported by the NVIDIA 9.1 Toolkit. So if you end up with this error you must change to the version to 6 from 7 (the default in Ubuntu 18.04 LTS is GNU 7.3.0). GNU GCC 6 was installed as a dependency to NVIDIA 9.1 Toolkit in STEP 2) and we exported two environments “CC” and “CCX” in STEP 4)

[ 85%] Building CXX object CMakeFiles/xmrstak_opencl_backend.dir/xmrstak/backend/amd/jconf.cpp.o
In file included from /usr/include/host_config.h:50:0,
                 from /usr/include/cuda_runtime.h:78,
                 from <command-line>:0:
/usr/include/crt/host_config.h:121:2: error: #error -- unsupported GNU version! gcc versions later than 6 are not supported!
 #error -- unsupported GNU version! gcc versions later than 6 are not supported!
  ^~~~~
In file included from /usr/include/host_config.h:50:0,
                 from /usr/include/cuda_runtime.h:78,
                 from <command-line>:0:
/usr/include/crt/host_config.h:121:2: error: #error -- unsupported GNU version! gcc versions later than 6 are not supported!
 #error -- unsupported GNU version! gcc versions later than 6 are not supported!
  ^~~~~
CMake Error at xmrstak_cuda_backend_generated_cuda_core.cu.o.Release.cmake:219 (message):
  Error generating
  /home/myuser/xmr-stak/build/CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/nvcc_code/./xmrstak_cuda_backend_generated_cuda_core.cu.o


CMakeFiles/xmrstak_cuda_backend.dir/build.make:63: recipe for target 'CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/nvcc_code/xmrstak_cuda_backend_generated_cuda_core.cu.o' failed
make[2]: *** [CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/nvcc_code/xmrstak_cuda_backend_generated_cuda_core.cu.o] Error 1
make[2]: *** Waiting for unfinished jobs....
CMake Error at xmrstak_cuda_backend_generated_cuda_extra.cu.o.Release.cmake:219 (message):
  Error generating
  /home/myuser/xmr-stak/build/CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/nvcc_code/./xmrstak_cuda_backend_generated_cuda_extra.cu.o


CMakeFiles/xmrstak_cuda_backend.dir/build.make:70: recipe for target 'CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/nvcc_code/xmrstak_cuda_backend_generated_cuda_extra.cu.o' failed
make[2]: *** [CMakeFiles/xmrstak_cuda_backend.dir/xmrstak/backend/nvidia/nvcc_code/xmrstak_cuda_backend_generated_cuda_extra.cu.o] Error 1
CMakeFiles/Makefile2:105: recipe for target 'CMakeFiles/xmrstak_cuda_backend.dir/all' failed
make[1]: *** [CMakeFiles/xmrstak_cuda_backend.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 88%] Linking CXX executable bin/xmr-stak
[ 88%] Built target xmr-stak
[ 91%] Linking CXX shared library bin/libxmrstak_opencl_backend.so
[ 91%] Built target xmrstak_opencl_backend
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

The solution is simple as said, just export CC and CXX before compilation in the same terminal console:

myuser@srv:~$ export CC=/usr/bin/gcc-6
myuser@srv:~$ export CXX=/usr/bin/g++-6

Mining Monero with xmr-stak 2.4 in a machine with NVIDIA video card under Ubuntu 18.04 LTS

Here are all the steps you need to begin mining Monero crypto coin with XMR-STAK 2.4. We can use our ASUS ROG POSEIDON GTX 1080Ti Platinum Edition to mine along with our processor AMD Ryzen Threadripper 1950X (16 cores with 32 threads with 3.4GHz base frequency and boost to 4GHz). As you’ll see our processor has better performance with cryptonight v7 than our GPU.

STEP 1) Install all the needed software

  1. Install linux distro – Ubuntu 18.04 LTS
  2. Install NVIDIA proprietary driver
  3. Install NVIDIA CURA Toolkit
  4. Build XMR-STAK

This step is a matter of another howto, you can check all the step and detail explanations here – Install xmr-stak 2.4 in a machine with NVIDIA video card under Ubuntu 18.04 LTS. Skip it if you just followed the above howto and you want to see an example of how to mine the Monero coins with XMR-STAK using CPU and GPU power.

STEP 2) First run of XMR-STAK

If you followed our howto above you should have installed XMR-STAK in “~/xmr-stak/build/bin”, so all the examples will be run from this directory.

myuser@srv:~/xmr-stak/build/bin$ ./xmr-stak 
Please enter:
- Do you want to use the HTTP interface?
Unlike the screen display, browser interface is not affected by the GPU lag.
If you don't want to use it, please enter 0, otherwise enter port number that the miner should listen on
0
Configuration stored in file 'config.txt'
Please enter:
- Please enter the currency that you want to mine: 
        - aeon7
        - bbscoin
        - bittube
        - cryptonight
        - cryptonight_bittube2
        - cryptonight_masari
        - cryptonight_haven
        - cryptonight_heavy
        - cryptonight_lite
        - cryptonight_lite_v7
        - cryptonight_lite_v7_xor
        - cryptonight_v7
        - cryptonight_v7_stellite
        - graft
        - haven
        - intense
        - masari
        - monero7
        - ryo
        - stellite
        - turtlecoin

cryptonight_v7
- Pool address: e.g. pool.example.com:3333
pool.monero.spacepools.org:3333
- Username (wallet address or pool login):
111111111111111111111111111111111111111111111111111111111111111111111
- Password (mostly empty or x):
mining@example.com
- Rig identifier for pool-side statistics (needs pool support). Can be empty:

- Does this pool port support TLS/SSL? Use no if unknown. (y/N)
N
- Do you want to use nicehash on this pool? (y/n)
n
- Do you want to use multiple pools? (y/n)
n
Pool configuration stored in file 'pools.txt'
-------------------------------------------------------------------
xmr-stak 2.4.7 c5f0505

Brought to you by fireice_uk and psychocrypt under GPLv3.
Based on CPU mining code by wolf9466 (heavily optimized by fireice_uk).
Based on NVIDIA mining code by KlausT and psychocrypt.
Based on OpenCL mining code by wolf9466.

Configurable dev donation level is set to 2.0%

You can use following keys to display reports:
'h' - hashrate
'r' - results
'c' - connection
-------------------------------------------------------------------
[2018-07-20 03:13:52] : Mining coin: cryptonight_v7
[2018-07-20 03:13:52] : NVIDIA: GPU configuration stored in file 'nvidia.txt'
[2018-07-20 03:13:52] : Starting NVIDIA GPU thread 0, no affinity.
[2018-07-20 03:13:52] : WARNING: No AMD OpenCL platform found. Possible driver issues or wrong vendor driver.
[2018-07-20 03:13:52] : WARNING: backend AMD (OpenCL) disabled.
[2018-07-20 03:13:52] : CPU configuration stored in file 'cpu.txt'
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 0.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 1.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 2.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 3.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 4.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 5.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 6.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 7.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 8.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 9.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 10.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 11.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 12.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 13.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 14.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Starting 1x thread, affinity: 15.
[2018-07-20 03:13:52] : hwloc: memory pinned
[2018-07-20 03:13:52] : Fast-connecting to pool.monero.spacepools.org:3333 pool ...
[2018-07-20 03:13:52] : Pool pool.monero.spacepools.org:3333 connected. Logging in...
[2018-07-20 03:13:53] : Difficulty changed. Now: 50000.
[2018-07-20 03:13:53] : Pool logged in.
[2018-07-20 03:14:16] : Result accepted by the pool.
[2018-07-20 03:14:23] : Difficulty changed. Now: 35000.
[2018-07-20 03:14:23] : New block detected.
[2018-07-20 03:14:24] : Result accepted by the pool.
[2018-07-20 03:14:27] : Result accepted by the pool.
[2018-07-20 03:14:38] : Difficulty changed. Now: 45500.
[2018-07-20 03:14:38] : New block detected.
[2018-07-20 03:14:53] : Difficulty changed. Now: 31850.
[2018-07-20 03:14:53] : New block detected.
[2018-07-20 03:14:59] : Result accepted by the pool.
[2018-07-20 03:15:06] : Result accepted by the pool.
[2018-07-20 03:15:08] : Difficulty changed. Now: 41405.
[2018-07-20 03:15:08] : New block detected.
[2018-07-20 03:15:18] : Result accepted by the pool.
[2018-07-20 03:15:23] : Difficulty changed. Now: 51756.
[2018-07-20 03:15:23] : New block detected.
[2018-07-20 03:15:38] : Difficulty changed. Now: 38817.
[2018-07-20 03:15:38] : New block detected.
[2018-07-20 03:16:08] : New block detected.
[2018-07-20 03:16:08] : Difficulty changed. Now: 27172.
[2018-07-20 03:16:08] : New block detected.
[2018-07-20 03:16:08] : Result accepted by the pool.
HASHRATE REPORT - CPU
| ID |    10s |    60s |    15m | ID |    10s |    60s |    15m |
|  0 |   80.3 |   80.3 |   (na) |  1 |   80.7 |   80.7 |   (na) |
|  2 |   80.7 |   80.7 |   (na) |  3 |   80.7 |   80.7 |   (na) |
|  4 |   81.2 |   81.1 |   (na) |  5 |   81.2 |   81.1 |   (na) |
|  6 |   81.2 |   81.1 |   (na) |  7 |   81.2 |   81.1 |   (na) |
|  8 |   80.8 |   81.0 |   (na) |  9 |   80.5 |   81.0 |   (na) |
| 10 |   81.0 |   81.1 |   (na) | 11 |   81.0 |   81.0 |   (na) |
| 12 |   81.2 |   81.2 |   (na) | 13 |   81.2 |   81.2 |   (na) |
| 14 |   81.1 |   81.1 |   (na) | 15 |   81.2 |   81.2 |   (na) |
Totals (CPU):  1295.2 1295.8    0.0 H/s
-----------------------------------------------------------------
HASHRATE REPORT - NVIDIA
| ID |    10s |    60s |    15m |
|  0 |   (na) |  772.2 |   (na) |
Totals (NVIDIA):     0.0  772.2    0.0 H/s
-----------------------------------------------------------------
Totals (ALL):   1295.2 2068.0    0.0 H/s
Highest:  2069.8 H/s
-----------------------------------------------------------------
[2018-07-20 03:16:15] : Result accepted by the pool.
RESULT REPORT
Difficulty       : 27172
Good results     : 8 / 8 (100.0 %)
Avg result time  : 17.6 sec
Pool-side hashes : 279449

Top 10 best results found:
|  0 |           179318 |  1 |            98494 |
|  2 |            65145 |  3 |            59550 |
|  4 |            58982 |  5 |            50332 |
|  6 |            42050 |  7 |            34703 |
|  8 |                0 |  9 |                0 |

Error details:
Yay! No errors.
[2018-07-20 03:16:23] : Difficulty changed. Now: 35324.
[2018-07-20 03:16:23] : New block detected.
[2018-07-20 03:16:38] : Difficulty changed. Now: 24727.
[2018-07-20 03:16:38] : New block detected.
[2018-07-20 03:16:42] : Result accepted by the pool.
[2018-07-20 03:16:49] : Result accepted by the pool.
[2018-07-20 03:16:53] : Difficulty changed. Now: 32145.
[2018-07-20 03:16:53] : New block detected.
[2018-07-20 03:16:55] : Result accepted by the pool.
[2018-07-20 03:17:08] : Difficulty changed. Now: 41789.
[2018-07-20 03:17:08] : New block detected.
[2018-07-20 03:17:23] : Difficulty changed. Now: 29252.
[2018-07-20 03:17:23] : New block detected.
[2018-07-20 03:17:47] : Result accepted by the pool.
[2018-07-20 03:17:53] : Difficulty changed. Now: 20476.
[2018-07-20 03:17:53] : New block detected.
[2018-07-20 03:17:54] : Result accepted by the pool.
[2018-07-20 03:18:00] : Result accepted by the pool.
[2018-07-20 03:18:08] : Difficulty changed. Now: 26619.
[2018-07-20 03:18:08] : New block detected.
[2018-07-20 03:18:15] : Result accepted by the pool.
[2018-07-20 03:18:21] : Result accepted by the pool.
[2018-07-20 03:18:23] : Difficulty changed. Now: 34605.
[2018-07-20 03:18:23] : New block detected.
[2018-07-20 03:18:30] : Result accepted by the pool.
[2018-07-20 03:18:30] : Result accepted by the pool.
[2018-07-20 03:18:36] : Result accepted by the pool.
[2018-07-20 03:18:38] : Difficulty changed. Now: 44987.
[2018-07-20 03:18:38] : New block detected.
[2018-07-20 03:18:53] : Difficulty changed. Now: 39694.
[2018-07-20 03:18:53] : New block detected.
[2018-07-20 03:18:55] : Result accepted by the pool.
[2018-07-20 03:18:56] : Result accepted by the pool.
[2018-07-20 03:19:08] : Difficulty changed. Now: 51602.
[2018-07-20 03:19:08] : New block detected.
[2018-07-20 03:19:23] : Difficulty changed. Now: 36121.
[2018-07-20 03:19:23] : New block detected.
[2018-07-20 03:19:28] : New block detected.
[2018-07-20 03:19:37] : Result accepted by the pool.
[2018-07-20 03:20:01] : Result accepted by the pool.
[2018-07-20 03:20:08] : Difficulty changed. Now: 28517.
[2018-07-20 03:20:08] : New block detected.
[2018-07-20 03:20:08] : New block detected.
[2018-07-20 03:20:23] : Difficulty changed. Now: 19962.
[2018-07-20 03:20:23] : New block detected.
[2018-07-20 03:20:23] : Result accepted by the pool.
[2018-07-20 03:20:30] : Result accepted by the pool.
[2018-07-20 03:20:31] : Result accepted by the pool.
[2018-07-20 03:20:38] : Difficulty changed. Now: 25951.
[2018-07-20 03:20:38] : New block detected.
[2018-07-20 03:20:45] : Result accepted by the pool.
[2018-07-20 03:21:08] : Difficulty changed. Now: 21041.
[2018-07-20 03:21:08] : New block detected.
[2018-07-20 03:21:18] : Result accepted by the pool.
[2018-07-20 03:21:23] : Difficulty changed. Now: 27353.
[2018-07-20 03:21:23] : New block detected.
[2018-07-20 03:21:26] : Result accepted by the pool.
[2018-07-20 03:21:32] : Result accepted by the pool.
[2018-07-20 03:21:35] : Result accepted by the pool.
[2018-07-20 03:21:38] : Difficulty changed. Now: 35559.
[2018-07-20 03:21:38] : New block detected.
[2018-07-20 03:21:53] : Difficulty changed. Now: 29633.
[2018-07-20 03:21:53] : New block detected.
[2018-07-20 03:21:55] : Result accepted by the pool.
[2018-07-20 03:22:08] : Difficulty changed. Now: 38523.
[2018-07-20 03:22:08] : New block detected.
[2018-07-20 03:22:23] : Difficulty changed. Now: 26966.
[2018-07-20 03:22:23] : New block detected.
[2018-07-20 03:22:28] : Result accepted by the pool.
[2018-07-20 03:22:38] : Difficulty changed. Now: 35056.
[2018-07-20 03:22:38] : New block detected.
[2018-07-20 03:22:49] : Result accepted by the pool.
[2018-07-20 03:22:52] : Result accepted by the pool.
[2018-07-20 03:22:53] : Difficulty changed. Now: 43820.
[2018-07-20 03:22:53] : New block detected.
[2018-07-20 03:23:00] : Result accepted by the pool.
[2018-07-20 03:23:08] : Difficulty changed. Now: 56966.
[2018-07-20 03:23:08] : New block detected.
[2018-07-20 03:23:13] : Result accepted by the pool.
[2018-07-20 03:23:23] : Difficulty changed. Now: 65730.
[2018-07-20 03:23:23] : New block detected.
[2018-07-20 03:23:23] : Result accepted by the pool.
[2018-07-20 03:23:30] : New block detected.
[2018-07-20 03:23:38] : Difficulty changed. Now: 85449.
[2018-07-20 03:23:38] : New block detected.
[2018-07-20 03:23:53] : Difficulty changed. Now: 59814.
[2018-07-20 03:23:53] : New block detected.
[2018-07-20 03:24:07] : Result accepted by the pool.
[2018-07-20 03:24:35] : New block detected.
[2018-07-20 03:24:38] : Difficulty changed. Now: 41870.
[2018-07-20 03:24:38] : New block detected.
[2018-07-20 03:25:08] : Difficulty changed. Now: 29309.
[2018-07-20 03:25:08] : New block detected.
[2018-07-20 03:25:38] : Difficulty changed. Now: 20516.
[2018-07-20 03:25:38] : New block detected.
[2018-07-20 03:25:49] : Result accepted by the pool.
[2018-07-20 03:25:53] : Difficulty changed. Now: 26671.
[2018-07-20 03:25:53] : New block detected.
[2018-07-20 03:26:08] : Difficulty changed. Now: 21056.
[2018-07-20 03:26:08] : New block detected.
[2018-07-20 03:26:15] : Result accepted by the pool.
[2018-07-20 03:26:22] : Result accepted by the pool.
[2018-07-20 03:26:23] : Difficulty changed. Now: 27373.
[2018-07-20 03:26:23] : New block detected.
[2018-07-20 03:26:52] : Result accepted by the pool.
[2018-07-20 03:26:53] : Difficulty changed. Now: 19161.
[2018-07-20 03:26:53] : New block detected.
[2018-07-20 03:26:56] : Result accepted by the pool.
[2018-07-20 03:27:08] : Difficulty changed. Now: 24909.
[2018-07-20 03:27:08] : New block detected.
[2018-07-20 03:27:19] : Result accepted by the pool.
[2018-07-20 03:27:23] : Difficulty changed. Now: 17436.
[2018-07-20 03:27:23] : New block detected.
[2018-07-20 03:27:26] : Result accepted by the pool.
[2018-07-20 03:27:36] : Result accepted by the pool.
[2018-07-20 03:27:38] : Difficulty changed. Now: 22667.
[2018-07-20 03:27:38] : New block detected.
[2018-07-20 03:27:43] : Result accepted by the pool.
[2018-07-20 03:27:43] : Result accepted by the pool.
[2018-07-20 03:27:49] : Result accepted by the pool.
[2018-07-20 03:27:53] : Difficulty changed. Now: 29467.
[2018-07-20 03:27:53] : New block detected.
[2018-07-20 03:27:57] : Result accepted by the pool.
[2018-07-20 03:28:00] : Result accepted by the pool.
[2018-07-20 03:28:03] : Result accepted by the pool.
[2018-07-20 03:28:08] : Difficulty changed. Now: 38307.
[2018-07-20 03:28:08] : New block detected.
[2018-07-20 03:28:23] : Difficulty changed. Now: 28730.
[2018-07-20 03:28:23] : New block detected.
[2018-07-20 03:28:30] : Result accepted by the pool.
[2018-07-20 03:28:30] : Result accepted by the pool.
[2018-07-20 03:28:35] : Result accepted by the pool.
[2018-07-20 03:28:37] : Result accepted by the pool.
[2018-07-20 03:28:37] : Result accepted by the pool.
[2018-07-20 03:28:38] : Difficulty changed. Now: 37349.
[2018-07-20 03:28:38] : New block detected.
[2018-07-20 03:29:07] : Result accepted by the pool.
[2018-07-20 03:29:08] : Difficulty changed. Now: 26144.
[2018-07-20 03:29:08] : New block detected.
[2018-07-20 03:29:36] : Result accepted by the pool.
[2018-07-20 03:29:38] : Result accepted by the pool.
[2018-07-20 03:29:38] : Difficulty changed. Now: 18301.
[2018-07-20 03:29:38] : New block detected.
[2018-07-20 03:29:41] : Result accepted by the pool.
[2018-07-20 03:29:45] : Result accepted by the pool.
[2018-07-20 03:29:50] : Result accepted by the pool.
[2018-07-20 03:29:53] : Difficulty changed. Now: 23791.
[2018-07-20 03:29:53] : New block detected.
[2018-07-20 03:29:58] : New block detected.
[2018-07-20 03:29:58] : Result accepted by the pool.
[2018-07-20 03:30:08] : Difficulty changed. Now: 30928.
[2018-07-20 03:30:08] : New block detected.
[2018-07-20 03:30:12] : Result accepted by the pool.
[2018-07-20 03:30:13] : Result accepted by the pool.
[2018-07-20 03:30:23] : Difficulty changed. Now: 40206.
[2018-07-20 03:30:23] : New block detected.
[2018-07-20 03:30:24] : Result accepted by the pool.
[2018-07-20 03:30:38] : Difficulty changed. Now: 52268.
[2018-07-20 03:30:38] : New block detected.
[2018-07-20 03:30:53] : Difficulty changed. Now: 36588.
[2018-07-20 03:30:53] : New block detected.
[2018-07-20 03:31:23] : Difficulty changed. Now: 25612.
[2018-07-20 03:31:23] : New block detected.
[2018-07-20 03:31:53] : Difficulty changed. Now: 17928.
[2018-07-20 03:31:53] : New block detected.
[2018-07-20 03:31:53] : Result accepted by the pool.
[2018-07-20 03:32:08] : Difficulty changed. Now: 23306.
[2018-07-20 03:32:08] : New block detected.
[2018-07-20 03:32:14] : Result accepted by the pool.
[2018-07-20 03:32:20] : Result accepted by the pool.
[2018-07-20 03:32:53] : Difficulty changed. Now: 17480.
[2018-07-20 03:32:53] : New block detected.
RESULT REPORT
Difficulty       : 17480
Good results     : 71 / 71 (100.0 %)
Avg result time  : 16.2 sec
Pool-side hashes : 2085841

Top 10 best results found:
|  0 |          4672722 |  1 |           993908 |
|  2 |           991887 |  3 |           271993 |
|  4 |           210975 |  5 |           208951 |
|  6 |           207738 |  7 |           179318 |
|  8 |           144045 |  9 |           118699 |

Error details:
Yay! No errors.
HASHRATE REPORT - CPU
| ID |    10s |    60s |    15m | ID |    10s |    60s |    15m |
|  0 |   80.3 |   80.3 |   80.3 |  1 |   80.7 |   80.7 |   80.7 |
|  2 |   80.7 |   80.7 |   80.7 |  3 |   80.7 |   80.7 |   80.7 |
|  4 |   81.2 |   81.2 |   81.2 |  5 |   81.2 |   81.2 |   81.2 |
|  6 |   81.2 |   81.2 |   81.1 |  7 |   81.2 |   81.2 |   81.2 |
|  8 |   80.7 |   81.1 |   81.0 |  9 |   80.9 |   81.1 |   81.1 |
| 10 |   80.9 |   81.0 |   81.0 | 11 |   80.9 |   81.1 |   81.1 |
| 12 |   81.0 |   81.1 |   81.1 | 13 |   81.1 |   81.1 |   81.2 |
| 14 |   81.1 |   81.1 |   81.1 | 15 |   81.1 |   81.1 |   81.2 |
Totals (CPU):  1295.1 1296.0 1295.9 H/s
-----------------------------------------------------------------
HASHRATE REPORT - NVIDIA
| ID |    10s |    60s |    15m |
|  0 |   (na) |  771.7 |  771.5 |
Totals (NVIDIA):     0.0  771.7  771.5 H/s
-----------------------------------------------------------------
Totals (ALL):   1295.1 2067.7 2067.4 H/s
Highest:  2069.9 H/s
-----------------------------------------------------------------
[2018-07-20 03:33:07] : Result accepted by the pool.
[2018-07-20 03:33:09] : Result accepted by the pool.

You could use monero7 or cryptonight_v7to mine Monero. The pool we use is under “Pool address:” – pool.monero.spacepools.org:3333 You cannot mine crypto without to be part of a pool of other mining “people”, because the difficulty is too big for solo mining! So choose your mining pool carefully – by the “Total Pool Fee”, which for the Spacepools is 0.1% and the stability of the pool.
The username is your MONERO wallet address (we changed our to invalid 111111111111111111111111111111111111111111111111111111111111111111111, DO NOT USE THIS ADDRESS) – check this to see how you can generate monero wallet address – Generate a new Monero address (wallet). The password in most cases is your email address, with which you could change some account information in the pool web page.

It is good to see

Result accepted by the pool.

it means your discovered a hash and you are going to be awarded by the pool for your mining share! As many as “accepted results” as good as for you!

As you can see our ASUS ROG POSEIDON GTX 1080Ti Platinum Edition without any overclocking has 771.5 H/s of Cryptonight v7 algorithm!
Our AMD Ryzen Threadripper 1950X (16 cores with 32 threads with 3.4GHz base frequency and boost to 4GHz) without any overclocking has 1295.1 of Cryptonight v7 algorithm! The performance of the CPU is almost double the performance of the GPU.
Our motherboard is ASUS ROG ZENITH EXTREME with 4x8Gbytes (G.Skill Trident Z RGB DIMM Kit 32GB F4-3200C14Q-32GTZR) of RAM running in fourth channel mode.

There are three control keys to display additional information of your XMR-STAK. Press one of the key during the program execution. In the above first run we used “h” and “r”.

'h' - hashrate
'r' - results
'c' - connection

And here is the stat after 5 hours:

[2018-07-20 08:42:32] : Result accepted by the pool.
RESULT REPORT
Difficulty       : 27881
Good results     : 1266 / 1266 (100.0 %)
Avg result time  : 15.6 sec
Pool-side hashes : 41195382

Top 10 best results found:
|  0 |         86854459 |  1 |         47586423 |
|  2 |         35768342 |  3 |         25208619 |
|  4 |          8208523 |  5 |          7828657 |
|  6 |          6669723 |  7 |          6490827 |
|  8 |          6448233 |  9 |          5964065 |

Error details:
Yay! No errors.
HASHRATE REPORT - CPU
| ID |    10s |    60s |    15m | ID |    10s |    60s |    15m |
|  0 |   80.3 |   80.3 |   80.3 |  1 |   80.8 |   80.8 |   80.8 |
|  2 |   80.8 |   80.8 |   80.8 |  3 |   80.8 |   80.8 |   80.8 |
|  4 |   81.2 |   81.1 |   81.1 |  5 |   81.2 |   81.1 |   81.1 |
|  6 |   81.2 |   81.1 |   81.1 |  7 |   81.2 |   81.1 |   81.1 |
|  8 |   81.0 |   80.9 |   81.0 |  9 |   81.0 |   81.0 |   81.0 |
| 10 |   81.0 |   81.0 |   80.9 | 11 |   80.5 |   80.8 |   81.0 |
| 12 |   81.2 |   81.1 |   81.1 | 13 |   81.2 |   81.2 |   81.2 |
| 14 |   81.2 |   81.2 |   81.1 | 15 |   81.2 |   81.2 |   81.1 |
Totals (CPU):  1295.7 1295.5 1295.7 H/s
-----------------------------------------------------------------
HASHRATE REPORT - NVIDIA
| ID |    10s |    60s |    15m |
|  0 |  773.0 |  769.9 |  771.6 |
Totals (NVIDIA):   773.0  769.9  771.6 H/s
-----------------------------------------------------------------
Totals (ALL):   2068.8 2065.4 2067.3 H/s
Highest:  2069.9 H/s
-----------------------------------------------------------------
[2018-07-20 08:42:42] : Result accepted by the pool.
[2018-07-20 08:42:43] : Difficulty changed. Now: 36245.
[2018-07-20 08:42:43] : New block detected.

Here we use https://dwarfpool.com/ and after 14 hours of mining:

[2018-07-21 02:21:05] : New block detected.
[2018-07-21 02:21:24] : Result accepted by the pool.
[2018-07-21 02:21:31] : Result accepted by the pool.
[2018-07-21 02:21:55] : Result accepted by the pool.
[2018-07-21 02:22:09] : Result accepted by the pool.
[2018-07-21 02:22:32] : Result accepted by the pool.
[2018-07-21 02:23:03] : Result accepted by the pool.
[2018-07-21 02:23:05] : Result accepted by the pool.
[2018-07-21 02:23:19] : Result accepted by the pool.
HASHRATE REPORT - CPU
| ID |    10s |    60s |    15m | ID |    10s |    60s |    15m |
|  0 |   80.3 |   80.3 |   80.3 |  1 |   80.8 |   80.8 |   80.8 |
|  2 |   80.8 |   80.8 |   80.8 |  3 |   80.8 |   80.8 |   80.8 |
|  4 |   81.2 |   81.1 |   81.2 |  5 |   81.2 |   81.1 |   81.2 |
|  6 |   81.2 |   81.1 |   81.1 |  7 |   81.2 |   81.1 |   81.2 |
|  8 |   81.0 |   80.9 |   81.0 |  9 |   81.0 |   81.0 |   81.0 |
| 10 |   81.0 |   81.0 |   81.0 | 11 |   81.0 |   80.8 |   81.0 |
| 12 |   81.1 |   81.2 |   81.2 | 13 |   81.1 |   81.2 |   81.2 |
| 14 |   81.1 |   81.1 |   81.1 | 15 |   81.0 |   81.2 |   81.2 |
Totals (CPU):  1295.8 1295.5 1295.8 H/s
-----------------------------------------------------------------
HASHRATE REPORT - NVIDIA
| ID |    10s |    60s |    15m |
|  0 |   (na) |  769.5 |  771.1 |
Totals (NVIDIA):     0.0  769.5  771.1 H/s
-----------------------------------------------------------------
Totals (ALL):   1295.8 2065.0 2066.9 H/s
Highest:  2069.8 H/s
-----------------------------------------------------------------
RESULT REPORT
Difficulty       : 50000
Good results     : 2592 / 2595 (99.9 %)
Avg result time  : 23.1 sec
Pool-side hashes : 3300000

Top 10 best results found:
|  0 |       1257001197 |  1 |         62229932 |
|  2 |         58697077 |  3 |         13938510 |
|  4 |         13393176 |  5 |         12264166 |
|  6 |         10357917 |  7 |          8800621 |
|  8 |          8669175 |  9 |          8547001 |

Error details:
| Count | Error text                       | Last seen           |
|     3 | [NETWORK ERROR]                  | 2018-07-20 19:26:18 |
[2018-07-21 02:45:48] : Result accepted by the pool.
[2018-07-21 02:45:50] : Result accepted by the pool.
[2018-07-21 02:46:11] : New block detected.
[2018-07-21 02:46:13] : New block detected.
[2018-07-21 02:46:44] : Result accepted by the pool.
[2018-07-21 02:46:53] : Result accepted by the pool.
[2018-07-21 02:47:21] : Result accepted by the pool.
[2018-07-21 02:47:33] : Result accepted by the pool.
[2018-07-21 02:47:48] : Result accepted by the pool.
RESULT REPORT
Difficulty       : 50000
Good results     : 2657 / 2660 (99.9 %)
Avg result time  : 20.8 sec
Pool-side hashes : 1000000

Top 10 best results found:
|  0 |       1257001197 |  1 |         62229932 |
|  2 |         58697077 |  3 |         13938510 |
|  4 |         13393176 |  5 |         12264166 |
|  6 |         10357917 |  7 |          8800621 |
|  8 |          8669175 |  9 |          8547001 |

Error details:
| Count | Error text                       | Last seen           |
|     3 | [NETWORK ERROR]                  | 2018-07-20 19:26:18 |
HASHRATE REPORT - CPU
| ID |    10s |    60s |    15m | ID |    10s |    60s |    15m |
|  0 |   80.2 |   80.3 |   77.5 |  1 |   80.7 |   80.7 |   77.9 |
|  2 |   80.7 |   80.7 |   77.9 |  3 |   80.7 |   80.7 |   77.9 |
|  4 |   81.1 |   81.1 |   78.3 |  5 |   81.1 |   81.1 |   78.3 |
|  6 |   81.1 |   81.1 |   78.3 |  7 |   81.1 |   81.1 |   78.3 |
|  8 |   81.1 |   81.0 |   78.2 |  9 |   81.1 |   81.1 |   78.2 |
| 10 |   81.1 |   81.0 |   78.2 | 11 |   81.1 |   81.1 |   78.2 |
| 12 |   81.0 |   81.1 |   78.3 | 13 |   81.1 |   81.1 |   78.3 |
| 14 |   81.0 |   81.1 |   78.3 | 15 |   81.1 |   81.1 |   78.3 |
Totals (CPU):  1295.2 1295.5 1250.7 H/s
-----------------------------------------------------------------
HASHRATE REPORT - NVIDIA
| ID |    10s |    60s |    15m |
|  0 |   (na) |  770.5 |  745.5 |
Totals (NVIDIA):     0.0  770.5  745.5 H/s
-----------------------------------------------------------------
Totals (ALL):   1295.2 2066.0 1996.1 H/s
Highest:  2069.8 H/s
-----------------------------------------------------------------
[2018-07-21 02:48:40] : New block detected.

The difficult is constant 50000 and you see we have multiple results, so we can try to higher it with another port (check for this the configuration page of the pool – https://dwarfpool.com/xmr/). The stats is “Earning in last 24 hours: 0.00753535 XMR”, “Current balance: 0.00732356 XMR” and ” Unconfirmed: 0.00078419 XMR” (in most cases all of it will be confirmed successfully), so the total monero we mined is “0.00810775 XMR” for these 14 hours with our machine and the estimate for the next 24 hours is “0.01440000 XMR” (for the current price you’ll earn 1.832300 USD for 24hours with this machine).

Here is the https://dwarfpool.com/xmr/ with almost 24 hours with difficult 100 000:

[2018-07-22 02:04:35] : Result accepted by the pool.
[2018-07-22 02:04:37] : Result accepted by the pool.
[2018-07-22 02:04:44] : Result accepted by the pool.
[2018-07-22 02:05:29] : Result accepted by the pool.
[2018-07-22 02:05:29] : Result accepted by the pool.
RESULT REPORT
Difficulty       : 100001
Good results     : 1691 / 1693 (99.9 %)
Avg result time  : 35.2 sec
Pool-side hashes : 4800048

Top 10 best results found:
|  0 |         50511124 |  1 |         32008411 |
|  2 |         27907718 |  3 |         27563158 |
|  4 |         20638537 |  5 |         19189255 |
|  6 |         18843649 |  7 |         15123109 |
|  8 |         12496904 |  9 |         12222295 |

Error details:
| Count | Error text                       | Last seen           |
|     1 | Low difficulty share             | 2018-07-21 15:11:03 |
|     1 | [NETWORK ERROR]                  | 2018-07-21 17:22:50 |
HASHRATE REPORT - CPU
| ID |    10s |    60s |    15m | ID |    10s |    60s |    15m |
|  0 |   80.3 |   80.3 |   80.3 |  1 |   80.7 |   80.7 |   80.7 |
|  2 |   80.7 |   80.7 |   80.7 |  3 |   80.7 |   80.7 |   80.7 |
|  4 |   81.1 |   81.2 |   81.1 |  5 |   81.1 |   81.2 |   81.1 |
|  6 |   80.8 |   81.1 |   81.1 |  7 |   81.1 |   81.2 |   81.1 |
|  8 |   80.9 |   81.0 |   81.0 |  9 |   81.0 |   81.0 |   81.0 |
| 10 |   81.0 |   81.1 |   81.1 | 11 |   81.0 |   81.1 |   81.1 |
| 12 |   81.0 |   81.1 |   81.1 | 13 |   81.0 |   81.1 |   81.1 |
| 14 |   80.9 |   81.1 |   81.1 | 15 |   81.0 |   81.1 |   81.1 |
Totals (CPU):  1294.5 1295.8 1295.6 H/s
-----------------------------------------------------------------
HASHRATE REPORT - NVIDIA
| ID |    10s |    60s |    15m |
|  0 |  771.4 |  770.7 |  771.0 |
Totals (NVIDIA):   771.4  770.7  771.0 H/s
-----------------------------------------------------------------
Totals (ALL):   2065.9 2066.5 2066.7 H/s
Highest:  2069.7 H/s
-----------------------------------------------------------------
[2018-07-22 02:06:15] : New block detected.

Current balance: 0.01082526 XMR, Unconfirmed: 0.00242919 XMR, the total is: 0.01325445 XMR, Earning in last 24 hours: 0.00603805 XMR. Next 24h earning with this speed: 0.01850000 XMR (with the current price of Monero 2.455200 USD) very approximated avg_24h_diff = 54061666755.14

Here is the nvidia-smi output

myuser@srv:~/xmr-stak/build/bin$ nvidia-smi 
Fri Jul 20 03:38:52 2018       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 396.24.10              Driver Version: 396.24.10                 |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 108...  Off  | 00000000:0A:00.0  On |                  N/A |
| 46%   64C    P2   143W / 275W |  10711MiB / 11173MiB |    100%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0      2119      G   /usr/lib/xorg/Xorg                            59MiB |
|    0      2170      G   /usr/bin/gnome-shell                          70MiB |
|    0     20146      C   ./xmr-stak                                 10577MiB |
+-----------------------------------------------------------------------------+

The GPU is using 143W and here is the used GPU RAM 10711MiB out of 11173MiB by xmr-stak.
All CPU cores are running at 3680.374 Mhz. The uptime is

myuser@srv:~/xmr-stak/build/bin$ uptime
 03:48:37 up 18:28,  3 users,  load average: 16.04, 16.05, 14.39

After the first run there will be created 4 files in your current directory of the xmr-stak binary:

myuser@srv:~/xmr-stak/build/bin$ ls -altr
total 35824
drwxrwxr-x 4 myuser myuser     4096 Jul 19 16:05 ..
-rw-rw-r-- 1 myuser myuser    75182 Jul 19 16:05 libxmr-stak-c.a
-rw-rw-r-- 1 myuser myuser  1614230 Jul 19 16:05 libxmr-stak-backend.a
-rwxrwxr-x 1 myuser myuser  1075784 Jul 19 16:06 xmr-stak
-rwxrwxr-x 1 myuser myuser  1307456 Jul 19 16:06 libxmrstak_opencl_backend.so
-rwxrwxr-x 1 myuser myuser 32570440 Jul 19 16:13 libxmrstak_cuda_backend.so
-rw-rw-r-- 1 myuser myuser     7228 Jul 20 03:10 config.txt
-rw-rw-r-- 1 myuser myuser     2087 Jul 20 03:13 pools.txt
-rw-rw-r-- 1 myuser myuser     2032 Jul 20 03:13 nvidia.txt
-rw-rw-r-- 1 myuser myuser     2963 Jul 20 03:13 cpu.txt
drwxrwxr-x 2 myuser myuser     4096 Jul 20 03:13 .
myuser@srv:~/xmr-stak/build/bin$

The configuration files are

  • config.txt – the general config
  • pools.txt – configuration for what coin your are mining and which pool you are using. You can tune the rig naming and additional pools.
  • nvidia.txt – configuration for GPU miner part – GPU threads, blocks and affine_to_cpu. Definitely check this out.
  • cpu.txt – configuration for the cpu miner part – Thread configuration for each thread – a line for each core. CPU affinity, power mode and more.

These files are generated on the first run with default values and then you could quit the xmr-stak and edit the files with text editor.

* Options of the XMR-STAK program

As you can see all the algo you can use with this program – new and classic (the old) criptonight coins to mine like Monero, Electroneum, IntenseCoin and many more!

myuser@srv:~/xmr-stak/build/bin$ ./xmr-stak --help
Usage: xmr-stak [OPTION]...
 
  -h, --help                 show this help
  -v, --version              show version number
  -V, --version-long         show long version number
  -c, --config FILE          common miner configuration file
  -C, --poolconf FILE        pool configuration file
  --benchmark BLOCKVERSION   ONLY do a benchmark and exit
  --benchwait WAIT_SEC             ... benchmark wait time
  --benchwork WORK_SEC             ... benchmark work time
  --noCPU                    disable the CPU miner backend
  --cpu FILE                 CPU backend miner config file
  --noAMD                    disable the AMD miner backend
  --noAMDCache               disable the AMD(OpenCL) cache for precompiled binaries
  --openCLVendor VENDOR      use OpenCL driver of VENDOR and devices [AMD,NVIDIA]
                             default: AMD
  --amd FILE                 AMD backend miner config file
  --noNVIDIA                 disable the NVIDIA miner backend
  --nvidia FILE              NVIDIA backend miner config file
  -i --httpd HTTP_PORT       HTTP interface port
 
The following options can be used for automatic start without a guided config,
If config exists then this pool will be top priority.
  -o, --url URL              pool url and port, e.g. pool.usxmrpool.com:3333
  -O, --tls-url URL          TLS pool url and port, e.g. pool.usxmrpool.com:10443
  -u, --user USERNAME        pool user name or wallet address
  -r, --rigid RIGID          rig identifier for pool-side statistics (needs pool support)
  -p, --pass PASSWD          pool password, in the most cases x or empty ""
  --use-nicehash             the pool should run in nicehash mode
  --currency NAME            currency to mine

Supported coin options: 
        - aeon7
        - bbscoin
        - bittube
        - cryptonight
        - cryptonight_bittube2
        - cryptonight_masari
        - cryptonight_haven
        - cryptonight_heavy
        - cryptonight_lite
        - cryptonight_lite_v7
        - cryptonight_lite_v7_xor
        - cryptonight_v7
        - cryptonight_v7_stellite
        - graft
        - haven
        - intense
        - masari
        - monero7
        - ryo
        - stellite
        - turtlecoin

Version: xmr-stak 2.4.7 c5f0505
Brought to by fireice_uk and psychocrypt under GPLv3.