On Sat, Jan 25, 2020 at 4:34 AM Hendrik Friedel <hendrik@xxxxxxxxxxxxx> wrote: > > total tree bytes: 131072 and > > btrfs-find-root /dev/sda > Superblock thinks the generation is 8 > Superblock thinks the level is 0 > It did not finish even in 54 hours I agree with the recommendations thus far. But this generation sticks out for me, along with the total tree bytes. It suggests this device has recently been formatted? Anyway, I advise poking around and making no changes to anything: no --repair, no rw mount. Only do things that are read-only or are completely reversible. Many data loss stories are the result of making changes, "repairs" that end up making the problem much worse, more complicate, impossible to reverse - and then what might have been possible to recover, no longer (practically) possible. I suggest asking the owner to reconstruct a detail version of every single step they took since the volume was in working order. -- Chris Murphy
