01-25-2012
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Join Date: Aug 2005
Last Activity: 7 July 2020, 11:47 AM EDT
Location: Saskatchewan
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When GRUB loads, select "recovery mode" or "single user mode" instead of your usual boot. This should put it into a root prompt without needing a password, allowing you to run 'passwd', which will ask you for a new password twice, and set root's password if they match.
Why are you logging into root all the time, anyway? Make an account to play with, so if you mess up something like this, you still have root to fix it. That's mostly what root's for.