Ubuntu – The best way to check (and repair) hard drive for bad sectors

hard drive

I used the following utilities to check my ext4 partitions:

  1. fsck
  2. badblocks

Google and SO also suggest smartctl. I'm just wondering what are the differences between all those tools and which one is better.

Best Answer

There is no way to repair bad sectors. They are automatically marked as unusable, without user intervention.

To find out what various programs do, see the man pages, for example:

man badblocks

man fsck

man smartctl

You don't have to read everything, just the description.