Glad to be back! Now there's a cronjob to run tootctl media remove, so my hard drive doesn't fill to the point of crashing my system repeatedly.
I had to delete /home/mastodon/live/public/system/cache from GRUB, & now all my nice images are gone. I don't suppose there's an easy way to ask for them back? Just the last X days or so, where X is around 14....