Follow the below steps to uninstall CloudLinux safely.
Before proceeding to un-installation of CloudLinux , check if your server has CloudLinux installed.
/usr/local/cpanel/bin/cloudlinux_system_install -c
First of all update CentOS RPMs:
yum upgrade -y
Recompile your Apache:
/scripts/easyapache --build
Re-install your Non-CloudLinux Kernel:
yum --disableexcludes=all install kernel
Remove CloudLinux Kernel:
rpm -qa |awk '/^kernel.*lve/ {print $1|"xargs yum -y erase"}'
Reinstall any other CloudLinux-provided RPMs that are also provided by CentOS:
rpm -qa --qf "[%{VENDOR} %{NAME}\n]"|awk '/CloudLinux/ {print $2|"xargs yumreinstall -y"}'
Downgrade any CloudLinux provided RPMs to the CentOS version:
rpm -qa --qf "[%{VENDOR} %{NAME}\n]"|awk '/CloudLinux/ {print $2|"xargs yum downgrade -y"}'
Remove any remaining CloudLinux specific RPMs:
rpm -qa --qf "[%{VENDOR} %{NAME}\n]"|awk '/CloudLinux/ {print $2|"xargs yum erase -y"}'
Upgrade any downgraded CentOS provided RPMs:
yum upgrade -y
Reboot the server :
reboot
Now you are ready to use the new non-CloudLinux kernel.