[Merge] ~vorlon/livecd-rootfs:lp.2034299 into livecd-rootfs:ubuntu/master

[Michael Hudson-Doyle]

Review: Approve

The only thing that would make this better is to run the blkid under strace to try to work out what is going on but maybe that's better done in a ppa
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https://code.launchpad.net/~vorlon/livecd-rootfs/+git/livecd-rootfs/+merge/450731
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