HowTo Restore Grub Boot Password In Ubuntu Dapper

A cardinal rule with computer security is that if you have physical access to a computer, you can pretty much do whatever your heart desires to it. Luckily, this includes removing the grub password from a linux box so that you can restore the root password…

Your best course of action in doing this is to download a bootable linux cd. The one that I tested this with is a worthwhile download even if you’re just reading this for fun.

There are x steps involved with removing grub passwords:

  1. Boot Backtrack Live Cd
  2. Log in, and navigate to the “/mnt” directory
  3. Then go to the partition that corresponds to your hard drive (if you only have one hard drive it’s likely “hda1“, or “/mnt/hda1
  4. Within that directory, navigate to “boot/grub”, and open “menu.lst” in a text editor
  5. Comment out all lines that start with “password
  6. Restart Computer, and enjoy a password-less grub bootloader.

Feel free to leave your mind in the comments and I’ll get back to you as soon as I can.

Jon

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