Re: partition table corrupted
>> "DEH" == Daniel E Hollis <Daniel.E.Hollis@Dartmouth.EDU> writes:
DEH> Anyone have any advice? Lilo saves a copy of the mbr, iirc -
DEH> maybe it also saves a copy of the partition table? (Where?).
DEH> Since I have the starting sector of the lost partition, is there
DEH> data in the beginning of the partition that would let me deduce
DEH> the length of the partition?
You are lucky. 2 Months before, I reinstalled DOS, and it sayed "I
have to rearrange the disk for DOS, shall I continue?". I didn't know
this was M$-speak for "wipe the partition table and create a new
single DOS partition"... Oh well ;-(
Fortunately I remembered about an article ("When is the time for a
backup? Right - the box freezes and after the reboot the disk is
f*cked up") I read about a similar case. Here is the fix:
In /boot you will find the relevant data. The file is named boot.XXYY
with XX beeing the major and YY the minor number of the device.
device Major Minor filename
1 IDE disk 3 0 boot.0300
1.logical partition 3 5 boot.0305
3. IDE disk 22 0 boot.2200
2.primary partition 22 2 boot.2202
1.SCSI disk 8 0 boot.0800
3.logical partition 8 7 boot.0807
Check in the kernel source (devices.txt) or with ls -l /dev/
Make a backup of the curent sector:
dd if=/dev/hda of=/tmp/saved.sector.0 bs=512 count=1
(of couse with the proper devicename)
Restore the old sector:
dd if=/boot/boot.0300 of=/dev/hda
Reassign the old partition layout
I wish you luck.