Unbreaking Unbootable Ubuntu

I run Ubuntu Hirsute - the development release which will become 21.04 - on a bunch of systems. It’s a trade-off though, getting the latest crack each and every day. Being at the bleeding edge of new packages landing means I can experience brand new shiny bugs on my systems. Bugs like 1915579 which rendered my system unbootable. Nobody wants to see this on boot:

initramfs prompt

I had updated yesterday and clearly something went wrong. A colleague filed a bug as they’d seen the same thing recently. For them it was their primary machine so they nuked it from orbit. As I experienced the bug on my laptop, a secondary machine, I was fine with leaving it alone, in case I could get some debug information from it, or repair it. I confirmed the bug and went to bed, as it was getting late.

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ubuntu  bug  luks  lvm