Help mounting sdb4 Data Disk.
I accidentally deleted files from my data disk under /shares/Videos on my 2Tb Mybook Live. I removed the drive and connected it to my Ubuntu machine and see several partitions, non of which will mount. I ran sudo parted and got the following:
Number Start End Size File system Name Flags
3 15.7MB 528MB 513MB primary
1 528MB 2576MB 2048MB ext3 primary raid
2 2576MB 4624MB 2048MB ext3 primary raid
4 4624MB 2000GB 1996GB ext4 primary
I know the ext4 is the data partition based on the size, but this is what I get when I try to mount:
sudo mount -t ext4 /dev/sdb4 /media/2TB
mount: wrong fs type, bad option, bad superblock on /dev/sdb4,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
Thinking the superblock was corrupted, I used the extfs command to list all the superblocks and then tried to use one of those, but it refused to accept it.
I then used mkfs.ext4 -b 65536 -m 0 /dev/sdb4 to try and mount it but it refuses.
I'm really stuck at the moment, can someone please advise?
FYI, as a last resort I hooked it up to a windows machine and used R-Studio, that found some video files, but it looks like several were appended into one, so I gave up on that and went back to my Ubuntu box.
I tried using testdisk, but that seems not to like the non-raid partitions.
I tried scouring the web to find info on using the mdadm command to see if I could mount it as a raid array, but I don't really understand the partitioning, or the fact that the first drive shows no filesystem type
I'm spinning my wheels here and could really do with some help, so if anyone can give me a primer and help me to mount and undelete the directory contents I would be a real happy camper.
Thanks in advance
