Comment 31 for bug 736743

I justclean installed 11.10 in / using btrfs and got same error
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: 0x000585b6

   Device Boot Start End Blocks Id System
/dev/sda1 * 261316608 312580095 25631744 7 HPFS/NTFS/exFAT
/dev/sda2 237316094 261316607 12000257 5 Extended
/dev/sda5 257316864 261316607 1999872 82 Linux swap / Solaris
/dev/sda6 237316096 257316863 10000384 83 Linux

Partition table entries are not in disk order