On Fri, 11 Jul 2014 21:29:07 constantine wrote: > Thank you very much for your response: > > # file -s /dev/sda1 /dev/sdc1 > /dev/sda1: BTRFS Filesystem label "partition", sectorsize 4096, > nodesize 4096, leafsize 4096, > UUID=c1eb1aaf-665a-4337-9d04-3c3921aa67e0, 1683870334976/3010310701056 > bytes used, 2 devices > /dev/sdc1: data Looks like the primary superblock on /dev/sdc1 is corrupt. http://www.funtoo.org/BTRFS_Fun#btrfs-select-super_.2F_btrfs-zero-log The above URL documents how to use the other superblocks. It notes that you only get one chance - if you do this wrong you will dramatically reduce the probability of getting your data back. Do not do this on the master copy of your data! Buy 2 disks of equal or greater capacity, copy the block devices, and then working with the copy. sdc needs to be replaced anyway no matter what you do and getting a replacement for sda would be a good strategy anyway. Buy 2*4TB disks and you can make a new RAID-1 array that has more capacity than the non- RAID filesystem you currently have. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/ -- 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
