I've been dual booting Windows and Ubuntu for a number of years. I usually have two primary partitions (one for Windows and one for Ubuntu) and an extended partition for everything else (Swap, and shared partition for data). With the last version, 11.04, I have experienced a strange happening. On both my desktop and laptop I did a clean install. After running into some other related problems, I used gparted to examine the hard drive. I discovered that during the upgrade, Ubuntu's primary partition was "moved" within the extended partition. So now I have just one primary partition and one extended partition (which included Ubuntu, 2 swap, and the shared data partition). Both Windows and Ubuntu seem to run just fine, but I did not tell it to change the partitions (I said to use the current partition I had for Ubuntu). I just checked the laptop and it's the same: one primary partition and one extended, when I know that I had it set up with 2 primary and one extended. Anyone with explanation as to what happened so I know what to do when I wipe the hard drives and start all over?