OpenBSD Community, Thanks for the feedback, some people that write the multiboot instructions reached out to me and I'm working through them.
>In order to use GPT you need a BIOS that supports it. In most of the >cases, this means an UEFI BIOS. I'm aware of the issues related to UEFI (particularly on older hardware like mine) and the obnoxious solutions to the problem at a systems programming level. The problem looks like it resides in Grub and Linux (perhaps just Debian systems) and I'm examining if there's a simple way to reuse existing systems to work my solution. Of course I don't expect the solutions to be integrated due to a variety of factors. Regardless, the multi-boot scenario is still sufficiently compelling for me to keep examining the issue. Initially I was surprised to find how difficult it has been to get the OS to multiboot via grub, but I have been finding this less surprising as I've looked into the details (particularly from the GNU end). >...far easier to install Windows after OpenBSD and get both working >again than installing Windows after installing Grub/Linux. I install windows on a separate disk to avoid these issues. It is indeed easier to put Debian on the drive *after* installing OpenBSD.
