Similar problem here
A while back I tried to install Ubuntu and almost had a heart attack. Here is what happened.
I have Boot-It-NG boot manager installed on my machine and ALWAYS do clean installation on a freshly formatted primary partition. So far as any version of the MS Windows or some of the Linux versions like Slackware, Mandriva or Puppy, are concerned I have the option of installing the boot sector files to the root of the concerned partition, I still prefer Lilo over Grub. All I have to do than is to simply boot from my Boot-IT-NG cd and reactivate it. Not so in Ubuntu. It took over the entire hard disk - without any warning and trashed all the rest of my bootable partitions. Fortunately Boot-It-Ng was able to recover all the partitions and I could revert to the previous setup. Ever since than I have never made any attempt at Ubuntu installation.
