[22:59] <guiverc> I'm convinced @Sudodus has workaround for launchpad.net/bugs/1899308 (groovy won't boot again) which impacts older boxes; I'll keep testing, but it impacts all (inc. ubuntu) and thumb-drives written with gnome-disks, mkusb...  workaround isn't quick
[23:04] <guiverc> actually if thumb-drive is only wanted to be used once, maybe not an issue  (bug means it won't reboot)