I've made backups of my BTRFS filesystem using Clonezilla, and have restored one of those backups to a file named 2013-11-29.sda3.img
.
I need to get some files out of this backup, but there's a hitch. Since the backup is of this machine, I cannot mount the backup anywhere on my filesystem, as its UUID matches the UUID of /
.
Is there a way that I can change the UUID of the backup volume? As I understand it, BTRFS stores UUID information in every block on the filesystem, which complicates things for my purposes. However, is there a way that I could modify this? I understand that it'd probably take a long time to do, but that doesn't concern me. My main concern is keeping the server online. The backup is fairly large, so transferring it to another machine would take quite a while.
What are my options?