Hello,
this morning I had to face an unusual prompt on my machine.
I found that the partition table of /dev/sda had vanished.
I restored it with testdisk. It found one partition, but I am quite sure
there was a /boot partition in front of that which was not found.
Now, running btrfsck fails:
root@homeserver:~# fdisk -l /dev/sda
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util
fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 * 1026048 234440703 116707328 83 Linux
root@homeserver:~# btrfsck /dev/sda1
checksum verify failed on 20987904 found E4E3BDB6 wanted 00000000
checksum verify failed on 20987904 found E4E3BDB6 wanted 00000000
checksum verify failed on 20987904 found E4E3BDB6 wanted 00000000
checksum verify failed on 20987904 found E4E3BDB6 wanted 00000000
bytenr mismatch, want=20987904, have=0
Couldn't read chunk root
Couldn't open file system
Is there a way to let btrfs search for the start of the partiton?
I do have a backup; thus it is not fatal. But some data on the disk is
more recent than my back up (of course)
Regards,
Hendrik
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