On Fri, Apr 5, 2019 at 12:45 AM Nik. <btrfs@xxxxxxxxxxxxx> wrote: > > Sorry, I forgot this. Hier is the output: > > # btrfs-image -c 9 -ss /dev/sdj3 /mnt/b/sdj3.img > WARNING: cannot find a hash collision for '..', generating garbage, it > won't match indexes > > The new image is same size, and since it seems small to me I am > attaching it to this mail. What do you get for `btrfs insp dump-t -d /dev/` ? Once I restore it, I get $ sudo btrfs insp dump-t -d /dev/mapper/vg-nik btrfs-progs v4.20.2 checksum verify failed on 90195087360 found 6036BAAE wanted 7C05A75D checksum verify failed on 90195087360 found 6036BAAE wanted 7C05A75D bad tree block 90195087360, bytenr mismatch, want=90195087360, have=7681037117263365436 Couldn't setup device tree ERROR: unable to open /dev/mapper/vg-nik $ sudo btrfs insp dump-t -r /dev/mapper/vg-nik btrfs-progs v4.20.2 checksum verify failed on 90195087360 found 6036BAAE wanted 7C05A75D checksum verify failed on 90195087360 found 6036BAAE wanted 7C05A75D bad tree block 90195087360, bytenr mismatch, want=90195087360, have=7681037117263365436 Couldn't setup device tree ERROR: unable to open /dev/mapper/vg-nik $ There is a valid superblock however. So it restored something, just not everything, not sure. Might be related to create failed success! -- Chris Murphy
