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If you've ever looked in your /etc/fstab file, you have may have seen an entry that looks like UUID=62fa5eac-3df4-448d-a576-916dd5b432f2 instead of a more familiar disk drive designation, such as /dev/hda1. Such entries are called universally unique identifiers (UUID). You can use these 128-bit numbers to make hard disk management easier.
