http://www.aei.mpg.de/~pau/zen_process_obsd.html
2010/4/18 Kim <4secure...@neomailbox.net>: > @ Zachary > > fwiw - I have Windows XP, Linux, and OpenBSD running on one machine > using two drives, but it should be possible with one. > > I would recommend installing Windows first, or if already installed, shrink > the partition using Ranish partition manager or Parted Magic. > Create two new primary partitions and an extended partition. > > Install OpenBSD on primary partition 2, GRUB on a small primary partition 3, > and Linux on the extended partition at the end of the disk. > > Use the chainloader method of booting with GRUB, where the GRUB partition > is marked active, and it hands off the boot to the individual OS bootloaders > on the other partitions. > > See here for more: > http://www.justlinux.com/forum/showthread.php?threadid=143973