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A Universally Unique Identifier (UUID) is an identifier standard used in software construction whose intent is to enable distributed systems to uniquely identify information without significant central coordination.

Typically, a UUID consists of 32 hexadecimal digits, displayed in 5 groups separated by hyphens, e.g.:


Getting UUIDs

To get a list of the UUIDs for your partitions:

  • open a terminal window
  • become root (type su and then enter your root password at the prompt)
  • use the command blkid


The output shown is from a system running Mepis 8.

Getting UUIDs using the GUI

Open your file browser and to navigate to


Hover your mouse over any of the links and observe the lower left portion of the window, you will see something like the following.

2e25faf2-64eb-40b4-9ea3-a8b95e2911a8 (block device, Link to ../../sda7)  

Links UUID on Wikipedia

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