Vanilla Kernel on CentOS

If compiling a Vanilla kernel for CentOS, you may encounter the following after rebooting:

Setuproot: moving /dev failed: No such file or directory
Setuproot: error mounting /proc: No such file or directory
Setuproot: error mounting /sys: No such file or directory
[...]
Kernel panic - not syncing: Attempted to kill init!

To resolve the booting issues, be sure to modify .config to include the following and recompile the kernel:

CONFIG_SYSFS_DEPRECATED_V2=y

It can also be found in menuconfig:

General Setup --> Enable Deprecated Sysfs Features