> Isn't ghost a full-disk backup/restore solution? If it is, then UUIDs
> should work correctly in such an environment.

No, they don't.  Ghost can backup only used space, and then restore that
by creating a new partition and filesystem (which will have a different
UUID), and then writing the files to that filesystem.

> On the flip side, ghost would also not work with device names in the event
> that you tried to do a backup/restore between a system whose controller uses
> libata and one whose controller does not. So it's not as if avoiding UUIDs
> is a reliable solution either.

You're correct, but this isn't a bug report on what would break ghost.
This is a problem with update-grub.

-- 
edgy update-grub destroys kopt
https://bugs.launchpad.net/bugs/62195
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