[SOLVED] After updating yesterday...

[duno]

(7th May, 2016 11:38 PM)Nachteule Wrote:  No idea what happened, maybe sd card corrupt or broken.

I do not think so, i've got the same problem

[BTRFS: superblock checksum mismatch]

After an update, on monday, xbian will not boot anymore.

Today i checked the sd-card in my computer and can't mount the btrfs-partition anymore.

Code:

dmesg | grep -i BTRF
...
[    5.395139] Btrfs loaded
[   14.818661] BTRFS: device label xbian devid 1 transid 82234 /dev/sdc2
[  177.585323] BTRFS: superblock checksum mismatch
[  177.590994] BTRFS: open_ctree failed

Code:

sudo btrfs-show-super /dev/sdc2

Code:

superblock: bytenr=65536, device=/dev/sdc2
---------------------------------------------------------
csum            0x323e98ec [DON'T MATCH]
bytenr            65536
flags            0x1
            ( WRITTEN )
magic            _BHRfS_M [match]
...

Code:

sudo btrfsck -s 2 /dev/sdc2
using SB copy 2, bytenr 274877906944
ERROR: superblock checksum mismatch
Superblock bytenr is larger than device size
Couldn't open file system

Code:

sudo btrfsck -s 1 /dev/sdc2
using SB copy 1, bytenr 67108864
ERROR: superblock checksum mismatch
couldn't open because of unsupported option features (10).
Couldn't open file system

Any chance to recover the system?