sudo btrfs-debug-tree -d /dev/sdc btrfs-progs v4.6.1 warning, device 3 is missing checksum verify failed on 12678831570944 found 3DC57E3E wanted 771D2379 checksum verify failed on 12678831570944 found 3DC57E3E wanted 771D2379 bytenr mismatch, want=12678831570944, have=10160133442474442752 Couldn't read chunk tree ERROR: unable to open /dev/sdc
Thank you Tomas ------------------------------------------------------------------------ *From:* Chris Murphy *Sent:* Tuesday, July 05, 2016 12:42AM *To:* Tomáš Hrdina *Cc:* Chris Murphy, Btrfs Btrfs *Subject:* Re: Unable to mount degraded RAID5 On Mon, Jul 4, 2016 at 3:10 PM, Tomáš Hrdina <thomas....@gmail.com> wrote: > http://sebsauvage.net/paste/?39c73a3440b2e903#WZnUJXNFPNz/fFuOK3QquVeOWQUopcCl0JabtuYMWew= Both backup 0 and 1 have bad information for backup_fs_root. backup_fs_root: 0 gen: 0 level: 0 Presumably it automatically tries backup 2 or 3 even though they have older generations but I'm not sure. > sudo btrfs-find-root /dev/sda > warning, device 3 is missing > Couldn't read chunk tree > ERROR: open ctree failed I'm gonna guess the system chunk is bad or damaged somehow and therefore there's no way to get to the chunk tree. What do you get for: # btrfs-debug-tree -d /dev/sda --- Tato zpráva byla zkontrolována na viry programem Avast Antivirus. https://www.avast.com/antivirus -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
