Christian Ohm wrote: > On Tuesday, 6 January 2009 at 14:34, Theodore Tso wrote: >> It looks like both the primary and the backup block group descriptors >> are bad. I'm not sure how this happened; normally nothing touches the >> backup block superblocks at all. Stupid question --- are you sure the >> partition table is sane; that's always the first thing to check. > > I created a new partition on the second drive, and I hope I used exactly the > same options. The result of fdisk -l is the following: > > corrupted drive: > > Disk /dev/sde: 1000.2 GB, 1000204886016 bytes > 255 heads, 63 sectors/track, 121601 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > Disk identifier: 0xaaaaaaaa > > Device Boot Start End Blocks Id System > /dev/sde1 1 121601 976760032 83 Linux > > new partition on similar drive: > > Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes > 255 heads, 63 sectors/track, 121601 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > Disk identifier: 0xaaaaaaaa > > Device Boot Start End Blocks Id System > /dev/sdb1 1 121601 976760001 83 Linux > > The only difference is the number of blocks of the partition, I guess since the > start and end are the same this should be equal as well. that's counting "cylinders" - try "fdisk -u" to be able to display (or specify) geometry in sectors, which is not a unit open to interpretation... -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
