How to reset root password via grub

  1. Reboot server, at grub screen press e to edit.
  2. Go to end of the linux line and add rd.break
  3. Do CTRL-X to boot.
  4. Do mount -o remount,rw /sysroot
  5. Do chroot /sysroot
  6. Do passwd root
  7. Do touch /.autorelabel
  8. Do exit

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