Detected a previous installation, /usr/share/ati/amd-uninstall.sh
Dryrun uninstall succeeded continuing with installation.
Uninstalling any previously installed drivers.
Forcing uninstall of AMD Catalyst(TM) Proprietary Driver.
No integrity verification is done.
restore of system environment completed
Uninstall fglrx driver complete.
For detailed log of uninstall, please see /etc/ati/fglrx-uninstall.log
System must be rebooted to avoid system instability and potential data loss.
/usr/share/ati/amd-uninstall.sh completed with 0
[Message] Kernel Module : Trying to install a precompiled kernel module.
[Message] Kernel Module : Precompiled kernel module version mismatched.
[Message] Kernel Module : Found kernel module build environment, generating kernel module now.
AMD kernel module generator version 2.1
kernel includes at /lib/modules/3.10.0-957.1.3.el7.x86_64/build/include not found or incomplete
[Error] Kernel Module : Failed to compile kernel module - please consult readme.
[Reboot] Kernel Module : dracut
In this installation, I used only one ATI FirePro MV 2450 video card to start configuring the system with CentOS 7.5.
Then I will add the second video card, always 2450, to have the 8-monitor system, which was previously supported with windows 7.