[CentOS] Kernel Panic

Hello,

Just upgrade to 6.2 but have not been able to run a newer kernel than
2.6.32-131.12.1.el6.x86_64.

I'm getting the error at boot, Not syncing: VFS Unable to mount root fs on
unknown-block(0,0)

I have google this error and see a lot of the same but no clear answers.

Any help would be appreciated.

TIA

-Eddie