Comment 14 for bug 551965

Here's the partition table listing from fdisk using the flags mentioned in the previous post (dos compatibility flag off, units to sectors).
This is from a working 10.04 system installed using the preseed recipe:
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0007a9aa

   Device Boot Start End Blocks Id System
/dev/sda1 * 2048 391167 194560 83 Linux
/dev/sda2 393214 312580095 156093441 5 Extended
/dev/sda5 393216 4390911 1998848 82 Linux swap / Solaris
/dev/sda6 4392960 8390655 1998848 83 Linux
/dev/sda7 8392704 312580095 152093696 83 Linux