The first sentence of the 3rd paragraph above should read:
So this is a problem that won't occur for _all_ cases of file system corruption, but for a user which does have both the original and backup superblocks corrupted, the results are rather catastrophic...
Sigh, I was typing too fast.
The first sentence of the 3rd paragraph above should read:
So this is a problem that won't occur for _all_ cases of file system corruption, but for a user which does have both the original and backup superblocks corrupted, the results are rather catastrophic...