Comment 4 for bug 1889041

A re-install of Xubuntu 18.04/bionic daily has completed.

Grub correctly shows (x)ubuntu on sda1, and another Ubuntu on sdc1 (last install in comment #3 was lubuntu)...

On selecting SDC1/Ubuntu 18.04 I get the error

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error: no such device: 31c58e86-0f12-4980-ac89-eaa469ca4e80
error: hd2 cannot get C/H/S values.
error: you need to load kernel first.

Press any key to continue.
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I've seen that issue before, had it on a QA-test install of 18.04.4, so it's not new, but it wasn't there during eoan (development) cycle, as it was the error on the eoan partition (now erased) on SDC, that booted fine until a RC of 18.04.4 was installed creating that issue. As I didn't care about eoan it was not a high priority (it'll be recorded on a qa-test for 18.04.4 if I can find it; this is a duplicate??)

I'm now convinced issue is with `grub2-common` (grub-install), wonder if there is a wordsize change or something... but I'm guessing...