What to do if a server fails to boot?

Solution Verified - Updated -


  • Server displays Kernel panic - not syncing - Attempted to kill init.
  • Server fails to boot after updating.
  • Server hangs during the boot process.
  • Server displays grub error.
  • Server boots directory to the grub> command prompt.
  • Server panic'd and on reboot it now fails to boot.
  • Server stops booting and drops into maintenance/emergency mode.


  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5

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