I have been running Win2k/FC8 on my first HDD (80Gb) and only FC5 on
my 2nd HDD (160Gb). MBR and Grub is on 1sr HD (sda). Things were going
smoothly until today, when I tried to boot my FC5 I got the error
"Filesystem unknown and Partition type 0x93". Grub could not load FC5.
My FC8 and Win2k are still working fine.

Using fdisk I could change the partition type to 0x83 on the 2nd HDD
(sdb) for the first 3 partitions but could not change the extended
partition, which still says unknown. See below

grub> geometry (hd1)
drive 0x81: C/H/S = 19457/255/63, The number of sectors = 312581808, /
dev/sdb
Partition num: 0, Filesystem type unknown, partition type 0x83
Partition num: 1, Filesystem type unknown, partition type 0x83
Partition num: 2, Filesystem type unknown, partition type 0x83
Partition num: 3, Filesystem type unknown, partition type 0x15

Tried using the install CD to see if I can fix or upgrade my 2nd HD
but I got the message that partitions are not readable and the I need
to initialize the HD causing data loss.
I have all my important data on my 2nd HDD. Can some one pl. help me
on how I can resurrect the FC5 and or at least recover the data. I
have to scream HELP! HELP!

Thanks for your help
NS