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Universally Unique Identifier (UUID)
Universally Unique Identifier (UUID)
Boot, Recovery

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List of Contents

It is always a good idea to back up the last few OVA (or UTM) files on an external disk. If your host has problems, those OVA files can be run on another host.

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df and blkid (root mode)

Note down the Universally Unique Identifier (UUID) by matching the "blkid" and "df" results. In this example:

df | grep sd | sort



blkid | sort


In this example:

| root (/): | UUID = "6d6e7142-e10d-4a6f-8e09-2ab74acba35b" | | /mnt/cbkadal/: | UUID = "c4e8685e-a808-47fb-80fe-8ecebe8797bd" | | /mnt/lfs/: | UUID = "6bc9eb14-8f9e-4ffb-95dd-94c4c6d37149" |

Check out the current mounting points. For UTM, replace "sda1", "sdb1", and "sdb2" with "vda1", "vdb1", and "vdb2".

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EDIT: /etc/fstab (root mode)

  • Replace the device mounting points with their UUIDs. E.g.,
    • Device: /dev/sdb1
    • Mounting point: /mnt/cbkadal/
    • UUID: c4e8685e-a808-47fb-80fe-8ecebe8797bd
  • for UTM, the devices start with the letter "v" (E.g., "vdb1" and "vdb2").
  • Remember: you are not cbkadal!


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EDIT: /etc/default/grub (root mode)

  • Change "GRUB_CMDLINE_LINUX_DEFAULT" with the UUID of /dev/sda1 (or /dev/vda1)
GRUB_CMDLINE_LINUX_DEFAULT="root=UUID=6d6e7142-e10d-4a6f-8e09-2ab74acba35b quiet"
  • Run "update-grub"
update-grub

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