Fariborz, Usually indicates missing storage driver in initramfs (if you were on VMware, I would tell you to check if vmw_pvscsi.ko is present in initramfs).
I've hard time believing that you might be missing initramfs completely (thought it might happen) but still would advise to re-check. If OS in general us not damaged, you should be able to still boot older kernel ? Regards Andrija On Sun, Jun 9, 2019, 22:47 Fariborz Navidan <mdvlinqu...@gmail.com> wrote: > Hello, > > After updating kernel of a CoudLinux VM to > 3.10.0-962.lve1.5.25.10.el7.x86_64 I get the following message on the VM: > > panic: not syncing: VFS: Unable to mount root fs on unknown block(0,0) > > When I try to boot from older kernel it drops into emergency mode which has > access to all mount points but no service is available. I have submitted > ticket to CloudLinux but their L1 and L2 support was unable to fix and has > escalated the issue to L3. The VM is a production environment for cPanel > hosting. > > If you know any point or tip, please let me know. > > Best Regards. >
