I'm attempting to recover (what I'm told is) a btrfs partition from a RAID5 array and I'm a bit stuck on the next step...
The reason I mention it was RAID5 is because the array way deleted in the controller software (!). I was able to recreate without reinitialising and reboot from a recovery CD and I can see all the original partitions:
>fdisk -l Disk /dev/sda: 7.3 TiB, 8000450330624 bytes, 15625879552 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 65536 bytes / 131072 bytes Disklabel type: gpt Disk identifier: 5ED632A8-C1B1-437B-89B5-A05C6312E1C4 Device Start End Sectors Size Type /dev/sda1 2048 1026047 1024000 500M EFI System /dev/sda2 1026048 1288191 262144 128M Microsoft reserved /dev/sda3 1288192 206088191 204800000 97.7G Microsoft basic data /dev/sda4 15624953856 15625875455 921600 450M Windows recovery environment /dev/sda5 206088192 15624953855 15418865664 7.2T Linux filesystem
I thought that was a good sign, unfortunately I'm not able to mount the partition:
mount: /mnt/test: wrong fs type, bad option, bad superblock on /dev/sda5, missing codepage or helper program, or other error.
and a btrfs check says 'no valid Btrfs found on /dev/sda5'.
Is this a lost cause? Just some pointers on the next steps to try would be really appreciated.