Switching Normal CloudLinux kernel to Hybrid Kernel

Switching to hybrid kernel:

# /usr/sbin/normal-to-hybrid

Then Enable boot once in the server.

#echo "savedefault --default=0 --once" | grub --batch

Confirm whether the hybrid kernel is default 0 or not in grub.conf file
Then Reboot the server.

shuntdown -rf now

Once the server is up with New Hybrid Kernel, Change the Default kernel in grub.cont to Hybrid kernel.

Reference: http://docs.cloudlinux.com/index.html?hybrid_kernel.htm