Changing the default kernel in Red Hat Enterprise Linux 8 , 9 & 10

Solution Verified - Updated -

Issue

  • How to change the default boot entry for kernel in Red Hat Enterprise Linux ?
  • Changing the default kernel of a Red Hat Enterprise Linux system when multiple kernel versions installed.
  • Restoring the previous working kernel in RHEL after a kernel update
  • Booting an older kernel after updating RHEL
  • Steps to revert to a previously working kernel in RHEL 9
  • Changing the default kernel in RHEL by using grubby
  • Using grubby --set-default to select a working kernel

Environment

  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 10

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