Backed up my profile, got a “low hard disk space warning” and Ubuntu (20.04) crashes and shuts off. Upon rebooting I can’t even get to the login screen. It lists some errors related to missing files and hangs.
Without investigating further, I doubt this was a Thunderbird bug. Find a live ISO to boot a USB device, delete a few files, no more low hard disk. That said, I've encountered a few what-were-they-thinking data losses recently, the worst being a shingled backup of a few big ISO files, the first being a move, and when the disk barfed (presumably too much data queued to be shingled written), the first few files were lost. So I went out and got a larger disk from the same vendor, tried 'copy' this time, same exception, I guess, the same old crappy firmware.
