Buster, Supermicro box I updated this morning, and I couldn't reboot afterward. It halted at trying to do something with the USB stick that's my /boot partition. *
After some time in the advanced grub menu, I found that the new kernel would boot fine in recovery mode, and would come up normally if I just CTL-D'ed at the prompt. After some more time, I found that the kernel a couple updates ago would boot normally when I selected it in the grub menu. As a side effect, I got my RME sound card back (PulseAudio still showed up in the AlsaMixer). I'm told that grub.cfg is a place I don't want to be. Can someone tell me how to get grub to boot the working OS, or maybe how to fix the new one? I edited the old grub several years and got the result I wanted, but grub2 is a new universe... * There's an M.2 as /, BIOS doesn't know about M.2, but it does USB, and Debian knows about M.2. So the boot chain is BIOS-USB-M.2. -- Glenn English
