I just added a third hard drive to my system so I can migrate to a larger drive. I created three partitions, two ext3, one swap, and formatted them. Copied the data to the drives, changed the labels on both the old partitions and the new ones, and rebooted. The system at boot time mounts the first partition and swap, then chokes on the third one. The error (sorry, I didn't write it down) was something like "Physical drive has 120000 sectors but the partition table shows 12000000. Bad partition table? Run fsck manually." After booting (took a CTRL-D) I ran fsck, comes up clean. I tried to mount it, mounted fine. Here's the output of fdisk for that drive. The partition that won't mount is hdc3. Command (m for help): p Disk /dev/hdc: 10.0 GB, 10000000000 bytes 128 heads, 63 sectors/track, 2422 cylinders Units = cylinders of 8064 * 512 = 4128768 bytes Device Boot Start End Blocks Id System /dev/hdc1 1 1200 4838368+ 83 Linux /dev/hdc2 1201 1325 504000 82 Linux swap /dev/hdc3 1326 2422 4423104 83 Linux Here's the boot messages from /var/log/messages: Jun 6 21:32:24 system3 kernel: hda: attached ide-disk driver. Jun 6 21:32:24 system3 kernel: hda: task_no_data_intr: status=0x51 { DriveReady SeekComplete Error } Jun 6 21:32:24 system3 kernel: hda: task_no_data_intr: error=0x04 { DriveStatusError } Jun 6 21:32:24 system3 kernel: hda: 4999680 sectors (2560 MB) w/128KiB Cache, CHS=620/128/63 Jun 6 21:32:24 system3 kernel: hdb: attached ide-disk driver. Jun 6 21:32:24 system3 kernel: hdb: task_no_data_intr: status=0x51 { DriveReady SeekComplete Error } Jun 6 21:32:24 system3 kernel: hdb: task_no_data_intr: error=0x04 { DriveStatusError } Jun 6 21:32:24 system3 kernel: hdb: host protected area => 1 Jun 6 21:32:24 system3 kernel: hdb: 8421840 sectors (4312 MB) w/256KiB Cache, CHS=524/255/63, UDMA(33) Jun 6 21:32:24 system3 kernel: hdc: attached ide-disk driver. Jun 6 21:32:24 system3 kernel: hdc: host protected area => 1 Jun 6 21:32:24 system3 kernel: hdc: 19531250 sectors (10000 MB) w/2048KiB Cache, CHS=19376/16/63, UDMA(33) Jun 6 21:32:24 system3 kernel: Partition check: Jun 6 21:32:24 system3 kernel: hda: hda1 hda2 hda3 Jun 6 21:32:24 system3 kernel: hdb: hdb1 hdb2 hdb3 Jun 6 21:32:24 system3 kernel: hdc: [PTBL] [2422/128/63] hdc1 hdc2 hdc3 Hmmm... Possibly a driver in my initrd that doesn't understand 10 Gb disks and/or LBA? Thanx! -Michael