[Merge] ~mwhudson/livecd-rootfs/+git/livecd-rootfs:lp-1952093-focal into livecd-rootfs:ubuntu/focal

[Michael Hudson-Doyle]

Oops I built a livefs with this change but dithered too long and the artefacts got deleted. https://launchpad.net/~mwhudson/+livefs/ubuntu/focal/test/+build/312823 is another attempt.
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https://code.launchpad.net/~mwhudson/livecd-rootfs/+git/livecd-rootfs/+merge/412361
Your team Ubuntu Core Development Team is requested to review the proposed merge of ~mwhudson/livecd-rootfs/+git/livecd-rootfs:lp-1952093-focal into livecd-rootfs:ubuntu/focal.