On Jul 20 2007 07:35, Willy Tarreau wrote: >On Fri, Jul 20, 2007 at 08:13:03AM +0300, Al Boldi wrote: >> As always, a good friend of mine managed to scratch my partion table by >> cat'ing /dev/full into /dev/sda. I was able to push him out of the way, but >> at least the first 100MB are gone. I can probably live without the first >> partion, but there are many partitions after that, which I hope should >> easily be recoverable. Go use GPT, it's got a backup copy of the ptable at then end of the disk ;-) >> >> I tried parted, but it's not working out for me. Does anybody know of a >> simple partition recovery tool, that would just scan the disk for lost >> partions? > >The best one is simply "fdisk", because you can manually enter your >cylinders numbers. You have to find by hand the beginning of each partition, >and for this, you have to remember what filesystems you used and see how to >identify them (using a magic). Then with an hex editor, you scan the disk to >find such entries and note the possible sectors on a paper. Then comes fdisk. >You create the part, exit and try to mount it. If it fails, fdisk again and >try other values. Pretty easy: "XFSB" (offset +0), "ReIsErFs2" (offset +0x10034), "SWAPSPACE2" (offset +0xff6), "FAT32" (offset +0x52h, maybe harder) / "mkdofs" (+0x3) ext2/3 is TOUGH. (sequence 0x53ef at +0x438 - quite ambiguous!) > >I've saved many disks that way, it may sound harder than it really is. It >should not take you more than half an hour to get the first part. Knowing >your approximate partitions size will help too. > >Good luck! >Willy > >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@xxxxxxxxxxxxxxx >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ > Jan -- - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
