Using UUID to Deal With Disks

"OK, so, first, how do you find out the UUID of your disk? The command blkid can be used -- here's its output for one of my disks:

# blkid /dev/hda1
/dev/hda1: UUID="0ef96300-36c0-4575-8a1d-2d36ff4cd585" SEC_TYPE="ext2" TYPE="ext3"

"Alternatively, you can look at the /dev/disk/by_uuid/ directory to see which UUID is associated with which disk. (Use df to find out what device names you currently have mounted.)"

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