I managed to break my root partition today. Playing with GPU passthrough to a second graphics card, unsuccessfully, I suspect lead to some lockups and/or unclean mounts.
I've Googled a bit and tried a number of things stopping just before 'btrfs check --repair'. I'm running kernel 4.19.10. I now have the latest version of btrfs-progs, but I do admit to 'having a go' with btrfs-progs 4.4.something from a Mint installation. I've tried btrfs-find-root - and got the following: btrfs-find-root /dev/sdc2 Superblock thinks the generation is 793794 Superblock thinks the level is 1 Found tree root at 1113905790976 gen 7937947 level 1 (transcribed by reading off PC and typing into laptop, any errors are mine) Not sure what to do with the above info. Should I just reformat and re-install (inc backups) or is there something worth trying? Pete
