As mentioned, probably outdated, but fdisk (AFAIK) doesn't support GPT disks. You need to use parted or some other tool.

I just tested a Virtuan Machine running Debian squeeze (kernel 2.6.32-5-486) and formatted a virtual disk as GPT using parted ...

# parted /dev/sde (parted) mklabel GPT (parted) mkpart part1 0 10G (parted) quit # fdisk -l /dev/sde . WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. . Disk /dev/sde: 85.9 GB, 85899345920 bytes 255 heads, 63 sectors/track, 10443 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 . Device Boot Start End Blocks Id System /dev/sde1 1 10444 83886079+ ee GPT 

This is fdisk version 2.17.2 (util-linux-ng).

mkfs and fsck should pick up the 'real' partition OK, but in order to check that the GPT partition table is not corrupted, you should have used GNU parted.

As mentioned, probably outdated, but fdisk (AFAIK) doesn't support GPT disks. You need to use parted or some other tool.

I just tested a Virtual Machine running Debian squeeze (kernel 2.6.32-5-486) and formatted a virtual disk as GPT using parted ...

# parted /dev/sde (parted) mklabel GPT (parted) mkpart part1 0 10G (parted) quit # fdisk -l /dev/sde . WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. . Disk /dev/sde: 85.9 GB, 85899345920 bytes 255 heads, 63 sectors/track, 10443 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 . Device Boot Start End Blocks Id System /dev/sde1 1 10444 83886079+ ee GPT 

This is fdisk version 2.17.2 (util-linux-ng).

mkfs and fsck should pick up the 'real' partition OK, but in order to check that the GPT partition table is not corrupted, you should have used GNU parted.

As mentioned, probably outdated, but the thing I can't imagine you missed is that fdisk (AFAIK) doesn't support GPT disks. You need to use parted or some other tool.

I just tested a Virtuan Machine running Debian squeeze (kernel 2.6.32-5-486) and formatted a virtual disk as GPT using parted ...

# parted /dev/sde (parted) mklabel GPT (parted) mkpart part1 0 10G (parted) quit # fdisk -l /dev/sde . WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. . Disk /dev/sde: 85.9 GB, 85899345920 bytes 255 heads, 63 sectors/track, 10443 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 . Device Boot Start End Blocks Id System /dev/sde1 1 10444 83886079+ ee GPT 

This is fdisk version 2.17.2 (util-linux-ng).

mkfs and fsck should pick up the 'real' partition OK, but in order to check that the GPT partition table is not corrupted, you should have used GNU parted.

As mentioned, probably outdated, but fdisk (AFAIK) doesn't support GPT disks. You need to use parted or some other tool.

I just tested a Virtuan Machine running Debian squeeze (kernel 2.6.32-5-486) and formatted a virtual disk as GPT using parted ...

# parted /dev/sde (parted) mklabel GPT (parted) mkpart part1 0 10G (parted) quit # fdisk -l /dev/sde . WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. . Disk /dev/sde: 85.9 GB, 85899345920 bytes 255 heads, 63 sectors/track, 10443 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 . Device Boot Start End Blocks Id System /dev/sde1 1 10444 83886079+ ee GPT 

This is fdisk version 2.17.2 (util-linux-ng).

mkfs and fsck should pick up the 'real' partition OK, but in order to check that the GPT partition table is not corrupted, you should have used GNU parted.