How to maintain specific number of kernel packages on Red Hat Enterprise linux systems?

Solution Verified - Updated -

Issue

  • What is the use of installonly_limit option in maintaining specific number of kernel packages on system?
  • How to change the number of kernels presented in grub?
  • How to increase the number of kernels presented in grub?
  • How to decrease the number of kernels presented in grub?

Environment

  • Red Hat Enterprise Linux (RHEL) 5, 6, 7, 8, 9

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