Hi Chris, i tried these:
1) mount -o ro,recovery /dev/sda /mnt/usb [ 1707.971925] BTRFS info (device sdd): enabling auto recovery [ 1707.971933] BTRFS info (device sdd): disk space caching is enabled [ 1708.005073] BTRFS: sdd checksum verify failed on 17802818387968 wanted BFB02AEC found FF45E2D3 level 1 [ 1708.005230] BTRFS: sdd checksum verify failed on 17802818387968 wanted BFB02AEC found FF45E2D3 level 1 [ 1708.005244] BTRFS: failed to read tree root on sdd [ 1708.005395] BTRFS: sdd checksum verify failed on 17802818387968 wanted BFB02AEC found FF45E2D3 level 1 [ 1708.005550] BTRFS: sdd checksum verify failed on 17802818387968 wanted BFB02AEC found FF45E2D3 level 1 [ 1708.005562] BTRFS: failed to read tree root on sdd [ 1708.509471] BTRFS: sdd checksum verify failed on 17802812309504 wanted BFB02AEC found 75187952 level 1 [ 1709.004781] BTRFS: sdd checksum verify failed on 17802812309504 wanted BFB02AEC found 75187952 level 1 [ 1709.004819] BTRFS: failed to read tree root on sdd [ 1709.026808] BTRFS: sdd checksum verify failed on 17802806853632 wanted BFB02AEC found B6624BB6 level 1 [ 1709.109491] BTRFS: sdd checksum verify failed on 17802806853632 wanted BFB02AEC found B6624BB6 level 1 [ 1709.109521] BTRFS: failed to read tree root on sdd [ 1709.111635] BTRFS: sdd checksum verify failed on 17802801315840 wanted BFB02AEC found 55A30545 level 1 [ 1709.113389] BTRFS: sdd checksum verify failed on 17802801315840 wanted BFB02AEC found 55A30545 level 1 [ 1709.113426] BTRFS: failed to read tree root on sdd [ 1709.139603] BTRFS: open_ctree failed 2) root@ubuntu:/home/ubuntu# btrfs check --readonly -s0 /dev/sda using SB copy 0, bytenr 65536 checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC Csum didn't match Couldn't read tree root Couldn't open file system root@ubuntu:/home/ubuntu# btrfs check --readonly -s1 /dev/sda using SB copy 1, bytenr 67108864 checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC Csum didn't match Couldn't read tree root Couldn't open file system root@ubuntu:/home/ubuntu# btrfs check --readonly -s2 /dev/sda using SB copy 2, bytenr 274877906944 checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC Csum didn't match Couldn't read tree root Couldn't open file system root@ubuntu:/home/ubuntu# btrfs check --readonly -s3 /dev/sda ERROR: super mirror should be less than: 3 3) restore root@ubuntu:/home/ubuntu# btrfs restore -D -v /dev/sda /mnt/usb/ checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC Csum didn't match Couldn't read tree root Could not open root, trying backup super warning, device 2 is missing warning devid 2 not found already warning devid 3 not found already warning devid 4 not found already checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC Csum didn't match Couldn't read tree root Could not open root, trying backup super warning, device 2 is missing warning devid 2 not found already warning devid 3 not found already warning devid 4 not found already checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC checksum verify failed on 17802818387968 found FF45E2D3 wanted BFB02AEC Csum didn't match Couldn't read tree root Could not open root, trying backup super 4) Everything is failing up to this point, any other ideas?:( thanks On Tue, Apr 12, 2016 at 5:43 AM, Chris Murphy <li...@colorremedies.com> wrote: > On Mon, Apr 11, 2016 at 3:51 PM, lenovomi <lenov...@gmail.com> wrote: >> Hi, >> >> i didnt try mount -o ro, when i tried to mount it via esata i got >> kernel panic immediately. Then i conntected enclosure with drives via >> usb and tried to mount it : > > OK so try '-o ro,recovery' and report back what you get. > > > >> >> https://bpaste.net/show/641ab9172539 >> plugged via usb -> mount randomly one of the drive mount /dev/sda /mnt/brtfs >> >> I was told on irc channel that i should not run btrfs check and if so >> i should run it as >> btrfs check --repair --init-extent-tree >> >> >> Also there was recommendation to run btrfs restore before repair. > > Did you use btrfs restore? > https://btrfs.wiki.kernel.org/index.php/Restore > > And did you use --repair --init-extent-tree? I don't recommend it > until you use restore as well. > > > >> Still not clear what should i do as next step. > > 1. mount with -o ro,recovery and get important date backed up. It > sounds like you don't have a backup? > > 2. If that doesn't work, use btrfs restore. It's tedious but at least > you can update your backup. > > 3. Next try btrfs check without repair. There's some nuance whether > it's better to use init-extent-tree or try zeroing the log. But don't > use repair until there's a current backup with 1 or 2. > > -- > Chris Murphy -- 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
