How to boot a system into rescue mode

Solution Verified - Updated -

Issue

  • Having trouble booting my system, how do I get into rescue mode during boot time?

Environment

  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 4
  • Rescue mode
    • note: within RHEL 7/8 rescue mode is referred to as "Anaconda Rescue Mode" to differentiate it from just booting the vmlinuz-0-rescue-* rescue image.

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