

This is the command I used after unlocking the luks device in a rescue environment and confirming it not mounting further:
sudo btrfs rescue zero-log /dev/mapper/luksroot
After that, I could mount again and boot.
Here’s more info on the command, to verify advice is sound: https://manpages.debian.org/testing/btrfs-progs/btrfs-zero-log.8.en.html#zero
EDIT: For me it didn’t happen during an update, btw. You might still need the chroot approach to make the system bootable again.






Can you name or link some models? I’d like to consider my options but haven’t found any yet.