I've recently installed OpenBSD 4.0 on two machines in spare space at the end of the disk.
It turns out that OpenBSD is unbootable if the root filesystem starts above cylinder 1024. However, this isn't a problem for FreeBSD; I guess it makes use of newer BIOS calls. I can still boot OpenBSD on these machines, by using the cd40.iso CDROM or a USB pen containing cdrom40.fs, and typing "boot hd0a:/bsd" or "boot hd1a:/bsd" at the boot> prompt. However this is a bit ugly. So I was wondering, are the OpenBSD and FreeBSD boot processes similar enough that I could use the FreeBSD boot loader (first and/or second stage) to boot OpenBSD? And if so, has anyone got a recipe for this that they would care to share? Thanks, Brian.
