UPDATE: I'm currently able to see and read/write some file in degraded mode but there're many file i can't read with input/output error too. On Sun, Oct 17, 2010 at 9:57 PM, Chalet16 <chalet16@xxxxxxxxx> wrote: > I had set up btrfs with 2 devices by using command this command sequence. > "mkfs.btrfs -m raid1 /dev/sda1 > mount /dev/sda1 /mnt/data > btrfs-vol -a /dev/sdb1 /mnt/data > btrfs-vol -b /mnt/data" > > (I was think that it will do raid1 for both data and metadata but I currently > realised that it will do raid1 for metadata but raid0 for data.) > > But I forgot that I have mount /dev/sdb1 with TrueCrypt. After I restarted my > PC and try to mount both devices array again there was a message in dmesg said > "chalet16@server:~$ sudo mount /dev/sda1 /mnt/data > [ 2828.921406] device label btr2902 devid 1 transid 8829 /dev/mapper/truecrypt1 > [ 2828.931780] btrfs: failed to read the system array on dm-1 > [ 2828.961330] btrfs: open_ctree failed" > > And when I ran btrfs-show it show that > "chalet16@server:~$ sudo btrfs-show > failed to read /dev/sr0 > Label: btr2902 Âuuid: 5673597c-ff57-4a42-8fe3-ff793f476809 >    ÂTotal devices 2 FS bytes used 706.75GB >    Âdevid  Â1 size 930.00GB used 717.26GB path /dev/sda1 >    Â*** Some devices missing > Btrfs Btrfs v0.19" > And when I run btrfsck on missing device > "chalet16@server:~$ sudo btrfsck /dev/sde1 > No valid Btrfs found on /dev/sde1" > > So I would like to ask for help to recover data from this btrfs raid array. In > my opinion I think that TrueCrypt only overwrite a little location in device > because I haven't done anything with TrueCrypt device after that. > > Thanks > Chalet16 > > > PS. I have recently known that TrueCrypt is in "Forbidden items" list in Fedora > wiki, but this is not really related to TrueCrypt so please don't ban me because > I had used TrueCrypt. > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
