How to fix an Unknown partition

[armb78]

Hi,
yesterday, I executed gparted and resized a partition. (108G to about 170G) But when it did 80% of the job, it just closed! I opened up gparted again, but there was an "Unknown" partition. e2fsck gives me:

 > sudo e2fsck /dev/sda1
e2fsck 1.42 (29-Nov-2011)
e2fsck: Superblock invalid, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/sda1

The superblock could not be read or does not describe a correct ext2
filesystem.  If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>

How can I fix it?

[armb78]

Anyone?

[Cheesemill]

I don't see what grub has to do with this, do you mean gparted?

[armb78]

Oh! Yes, I mean gparted!

[Cheesemill]

The easiest method of fixing this is to start from scratch.

Wipe the drive, create and format whatever partitions you want and then restore all of your data from a backup.

[armb78]

Unfortunately, I can't. There are about 80G files in it and I really need them. They're not for me.
I know that the superblock has been lost, and I know that if I find it, I can probably fix the partition. But I can't.