[PlanetCCRMA] basic rescue help

[Oded Ben-Tal]

I get a "bad superblock" error when trying to boot.
I'm using knoppix to try and fix it but it does look like 
my linux partition is actually ok:

root at ttyp0[Backup]# e2fsck -f /dev/hda4
e2fsck 1.33 (21-Apr-2003)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/: 133644/1200576 files (0.8% non-contiguous), 1261759/2398410 blocks

(hda4 is the only linux partition the pather are linux swap, vfat, and 
ntfs)

The only thing I noticed was when listing the partition (fdisk -l)
the linux one isn't bootable. Can that be the problem? if so how do I fix 
that?

any ideas would help
Oded