On 2008-05-10, sridhar <sribang@yahoo.com> wrote:
>
>
> 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!
>
Try gpart. It reads the entire drive looking for the beginnings of
partitions. Get a new drive of equal or greater capacity and use dd to
copy the contents of the old drive.