Technical details of a default CentOS 8.0.1950 minimal installation

This article is for those of you who do not want to install a whole new operating system only to discover some technical details about the default installation like disk layout, packages included, software versions and so on. Here we are going to review in several sections what is like to have a default installation of CentOS 8.0.
Despite the kernel is 4.18 it detects successfully the new RYZEN/Threadripper AMD and the system is stable (we booted in UEFI mode).

Software

The CentOS 8.0 (8.0.1950) you can have

  • linux kernel – 4.18.0 (4.18.0-80.7.1.el8_0.x86_64)
  • Graphical User Interface
    • Xorg X server – 1.20.3
    • GNOME (the GUI) – 3.28.2
    • K Desktop Environment – NO, it’s depricated and not included in the release.
  • System
    • linux-firmware – version: 20190111, release: 92.gitd9fb2ee6.el8.
    • QT – 5.11.1
    • libc – 2.28
    • GNU GCC – 8.2.1
    • OpenSSL – 1.1.1
    • coreutils – 8.30
    • yum – Depricated and replaced with dnf
    • dnf – 4.0.9.2
    • cups – 2.2.6
    • rsyslog – 8.37.0
  • Servers
    • Apache – 2.4.37
    • Nginx – 1.14.1
    • MySQL server – 8.0.13
    • MariaDB server – 10.3.11
    • PostgreSQL – 10.6
  • Programming
    • PHP – 7.2.11
    • python – 2.7.15 and also includes 3.6.8
    • perl – 5.26.3
    • ruby – 2.5.3
    • OpenJDK – 11.0.4.11 and also includes 1.8.0.222.b10
    • Go – 1.11.5
    • Rust – 1.31.0
    • Subversion – 1.10.2
    • Git – 2.18.1

Note: Not all of the above software comes installed by default.
The installation procedure you can find here – How to do a network installation of CentOS 8 (8.0.1950) – minimal server installation Minimal install with “Standard” Addons selected.
Installed packages are 547 occupying 1.8G space:.

[root@srv ~]# dnf list installed|wc -l
547
[root@srv ~]# df -h /
Filesystem               Size  Used Avail Use% Mounted on
/dev/mapper/cl_srv-root   50G  1.8G   49G   4% /

Note: if you do not select “Standard Addon” the installation occupies less space – 1.6Gbytes and installs only 397 packages.
Keep on reading!

How to do a network installation of CentOS 8 (8.0.1950) – minimal server installation

Minimal net install is useful when a dedicated server is installed from a IPMI KVM or Dell iDRAC, HP iLO, IBM IMM or where the initial client side download of files need to be minimal.
For amd64 CentOS 8 BaseOS the net install bootable media is located here (now the current latest release is 8.0.1950, but you can check the last directory with 8. for the time you follow this howto):

http://mirror.leaseweb.com/centos/8/isos/x86_64/CentOS-8-x86_64-1905-boot.iso

Note there is no minimal CD for offline installation anymore. Boot CD is to just boot and make “netinstall” installation and a big fat DVD of 6.6Gbytes to install offline.
Software details of CentOS 8 minimal install could be found here – Technical details of a default CentOS 8.0.1950 minimal installation

Download it and put it on a cd or usb, the boot from it and follow the steps bellow:

STEP 1) Enter the BIOS of your machine (desktop or server) to change the boot order.

You can try F11 on most servers to have the boot menu. Here we use DEL to enter the UEFI BIOS.

main menu
Enter BIOS – change boot order

Keep on reading!