This a minimum server installation using LVM (Logical Volume Manager) with xfs (file system), by making a separate /var partition it will make it easier to increase the size if necessary. I have not included any screen captures of the process as it is a very intuitive installation.
INSTALLATION SUMMARY
This is the default screen for all configuration before installation
Software Selection
CLICK to open new window and tick the following
Base Environment = ✔ Minimal Install
and click DONE to return to INSTALLATION SUMMARY SCREEN
Network & Host Name
Choose the NIC you are going to use and configure it with a static IPv4 address, DNS servers etc
At bottom left of the screen you can set yourhostname (Use NETBIOS 15 character max name) eg. linuxsvr01
and click DONE to return to INSTALLATION SUMMARY SCREEN
Installation Destination
Choose the DISK you are going to use (tick mark shows) then in OTHER STORAGE OPTIONS choose "I will configure partitioning" and click DONE, this takes you to
MANUAL PARTITIONING
Choose "click here to create them automatically" then reduce /centos-root by 8 GiB or more and update settings.
Click on + above AVAILABLE SPACE and add NEW MOUNT POINT /var with 8 GiB, "click Add mount point" and DONE.
SUMMARY OF CHANGES click "Accept Changes" to return to INSTALLATION SUMMARY SCREEN
You can now click on
BEGIN INSTALLATION
CONFIGURATION
Set ROOT PASSWORD ONLY at this time as when you join the Domain you will be able to use the your domain user name.
Install will now continue, when finished click on REBOOT