Comment 9 for bug 181812

When I had this problem, I made the whole partitioning (XP [30 GB], swap [1 GB], Ubuntu [20 GB], data [about 45 GB]) with Windows XP setup. After I installed XP, I didn’t touch the other partitions and continued with the Ubuntu installation. Then I got the error message. I tried the installation of Ubuntu a second time, but I got this error message a second time.
Before I had this problem, I also made the whole partitioning with Windows XP setup, but I formatted the data-partition as ntfs on Windows XP. Because I wasn’t able to mount the ntfs-data-partition I reformatted it as ext2 at Ubuntu setup. Bizarrely I didn’t have any problems.
Now, I don’t have this problem anymore, because I only make the first partition (XP) with XP setup. I make the other partitions (swap, Ubuntu and data) with Ubuntu setup.