I think you can install OpenSolaris replacing Fedora, on sda2 partition. I have more or less the same configuration on my laptop sda1 - Win XP sda2 - Ntfs Data partition sda3 - Ubuntu sda5 - Ext3 data partition sda6 - linux swap sda7 - Opensolaris
Primarily I had only Ubuntu and Win xp installed, and then I installed OpenSolaris (which in fact recognized only xp in his grub) so I reinstalled the linux grub (with supergrub http://www.supergrubdisk.org/ ), and added in menu.lst of Ubuntu the same configuration like Windows partition boot, only changing the partition number. I have done it twice (OpenSolaris 2008.5 and 2008.11) , and it has worked pretty well. I'll copy my menu.lst from Ubuntu and post it here. -- This message posted from opensolaris.org
