A recent upgrade rendered my computer unbootable. The boot never completes. It is stuck at:

Start job is running for /dev/mapper/luks-4956cb53-c8e8-4525-b3e0-2f54bad2a801

Additionally, I am now unable to boot via a USB drive… So essentially, I have the Grub boot environment and am feeling that I’ve quite checkmated myself.

Normally I run Debian, but this machine, a cheap atom tablet is running Manjaro i3, because it had the best hardware compatibility at the time.

EDIT: I finally managed to find a USB drive that will boot (not sure why the others were failing) and can mount the LUKS partition. I’m still unsure how to confront the stalled process.