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29 Jun 2010 Universally Unique Identifier UUID

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This is the command to print the UUID for a device. This may be used with UUID= in /etc/fstab as a more robust way to name devices that works even if disks are added and removed. Ubuntu 10.04 uses this in their /etc/fstab file.

Example 1
Print UUID to partition /dev/sda1

# blkid -o value -s UUID /dev/sda1

Example 2
Print all UUIDs on your system

# blkid -o value -s UUID

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