Hi, Just joined though have been playing with and building computers since 286's (the CPU, not the year!) . I also administered a small domain_OS (Apollo computers) network in the 90's but today would claim almost no Unix expertise.
My LG NAS (Single disc 1Tb Seagate sata drive with a unix O/S and three partitions) died earlier this year and had been backing up our main PC. Two weeks later our main PC SSD died and I lost everything! There is critical data on the NAS disc that I need to recover. I know I can pay $$$ to get a service to recover it but I don't think it will be that hard and I'll learn something in the process (and I've heard horror stories of services destroying discs).
For a few weeks, the NAS started to make a louder fan noise than usual and one day I could not find it on my PC network (I was running Win XP Pro but now Win 7 Pro). LG were no help so I removed the drive and put it in an external USB enclosure. The drive appears as visible with three partitions to the Win 7 disc utility but, of course, it can't read it b/c its a *nix O/S.
THE RECOVERY ATTEMPT
So I loaded a runtime version of Ubuntu (14.04.1 x64) and began to look around. Again, disc utilities found it, with three partitions but it did not mount. It did report that the device names were sdc1, sdc2 & sdc3. The sdc3 is the largest partition and where I believe my data is. Filesystem is EXT3 I believe.
Next, I tried manually mounting in a shell. It said that there was a bad superblock at 0.
I then interrogated the drive with dumpe2fs to determine the subsequent superblocks that may permit mounting (I understand these are like FAT's that are replicated in multiple locations)
So using the next superblock number, 32768, I tried fsck. This was the result: