Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want to back up the master boot on my hard drive, in case something screws it up. What software do you recommend for this?

My first idea is to boot from a Linux CD and dd the first 512 bytes of /dev/sda, and dd it back to recover. Will this solution work, and is it safe?

share|improve this question
up vote 1 down vote accepted

Try this:

I guess you were right.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.