How to install the latest linux kernel (mainline) in Ubuntu (17.10) distro

Sometimes we need to install the latest kernel version of our linux distro (btw it is called “mainline” if you need to google something about it)! Whether we need the latest driver, because we bought a new laptop released for the first time last month with the latest hardware or there is a hot fix of some nasty bug it is of no matter. Here are the steps (and some troubleshooting) about installing the latest kernel to our Ubuntu install 17.10 (with old versions like 16, 15 and 14 should be the same):

  • STEP 1 is to choose our desired kernel from

    http://kernel.ubuntu.com/~kernel-ppa/mainline/

    Open this address in your favorite browser and choose the latest. In our example the latest kernel, which is no release candidate, 4.14.15. Enter the directory

    http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15.1/

    and choose your build, for example amd64 for your 64bit setup (and for most cases choose -generic- one)

    mkdir /root/latestkernel
    cd /root/latestkernel
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15.1/linux-headers-4.15.1-041501_4.15.1-041501.201802031831_all.deb
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15.1/linux-headers-4.15.1-041501-generic_4.15.1-041501.201802031831_amd64.deb
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15.1/linux-image-4.15.1-041501-generic_4.15.1-041501.201802031831_amd64.deb
    
  • STEP 2 after successfully downloading the 3 files just install them with “dpkg” (the package manager tool)
    sudo dpkg -i linux-headers-4.15.1*.deb linux-image-4.15.1*.deb
    
  • STEP 3 is just to reboot your machine, the installation setup did everything you needed to load this kernel
    reboot
    

    STEP 4 Verification of running the latest kernel

    root@srv:~# uname -a
    Linux srv.local 4.15.1-041501-generic #201802031831 SMP Sat Feb 3 18:32:13 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
    

Install log of the procedure (your output may vary depending on your hardware installed in your system):

root@srv:~/latestkernel# sudo dpkg -i linux-headers-4.15.1*.deb linux-image-4.15.1*.deb
Selecting previously unselected package linux-headers-4.15.1-041501.
(Reading database ... 200430 files and directories currently installed.)
Preparing to unpack linux-headers-4.15.1-041501_4.15.1-041501.201802031831_all.deb ...
Unpacking linux-headers-4.15.1-041501 (4.15.1-041501.201802031831) ...
Selecting previously unselected package linux-headers-4.15.1-041501-generic.
Preparing to unpack linux-headers-4.15.1-041501-generic_4.15.1-041501.201802031831_amd64.deb ...
Unpacking linux-headers-4.15.1-041501-generic (4.15.1-041501.201802031831) ...
Selecting previously unselected package linux-image-4.15.1-041501-generic.
Preparing to unpack linux-image-4.15.1-041501-generic_4.15.1-041501.201802031831_amd64.deb ...
Examining /etc/kernel/preinst.d/
run-parts: executing /etc/kernel/preinst.d/intel-microcode 4.15.1-041501-generic /boot/vmlinuz-4.15.1-041501-generic
Done.
Unpacking linux-image-4.15.1-041501-generic (4.15.1-041501.201802031831) ...
Setting up linux-headers-4.15.1-041501 (4.15.1-041501.201802031831) ...
Setting up linux-headers-4.15.1-041501-generic (4.15.1-041501.201802031831) ...                                                                                             
Setting up linux-image-4.15.1-041501-generic (4.15.1-041501.201802031831) ...                                                                                               
Running depmod.                                                                                                                                                             
update-initramfs: deferring update (hook will be called later)                                                                                                              
Examining /etc/kernel/postinst.d.                                                                                                                                           
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.15.1-041501-generic /boot/vmlinuz-4.15.1-041501-generic                                                      
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.15.1-041501-generic /boot/vmlinuz-4.15.1-041501-generic                                                       
update-initramfs: Generating /boot/initrd.img-4.15.1-041501-generic                                                                                                         
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.15.1-041501-generic /boot/vmlinuz-4.15.1-041501-generic                                                   
run-parts: executing /etc/kernel/postinst.d/update-notifier 4.15.1-041501-generic /boot/vmlinuz-4.15.1-041501-generic                                                       
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.15.1-041501-generic /boot/vmlinuz-4.15.1-041501-generic                                                        
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-4.15.1-041501-generic                                                                                                                      
Found initrd image: /boot/initrd.img-4.15.1-041501-generic                                                                                                                  
Found linux image: /boot/vmlinuz-4.14.15-041415-generic                                                                                                                     
Found initrd image: /boot/initrd.img-4.14.15-041415-generic                                                                                                                 
Found linux image: /boot/vmlinuz-4.13.0-32-generic
Found initrd image: /boot/initrd.img-4.13.0-32-generic
Found linux image: /boot/vmlinuz-4.13.0-21-generic
Found initrd image: /boot/initrd.img-4.13.0-21-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin
done
root@srv:~/latestkernel#

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