I have a Shuttle SD11G5, which is a small Celeron-based PC (1.5Ghz Celeron, 2GB RAM, a couple SATA drives).
The OpenBSD 5.3 installer consistently hangs after I enter the Netmask for the onboard NIC. I'm booting the 32-bit x86 install53.iso. I start configuring bge0 (which is a BCM5789) and after "IPv4 address for bge0", the installer asks for Netmask and after I enter it (255.255.255.0), the installer sits there forever. Same thing if I DHCP - after "Issuing hostname-associated DHCP request for bge0" the installer hangs. I also have an Intel Pro/1000 gig-E card (82574L) in the PCI Express slot, which shows up on em0. Unfortunately dmesg says "couldn't map interrupt" and I'm not offered the chance to configure it. I haven't found anything useful via searching for fixing this. This box previously ran Debian Linux with no problems, so I'm skeptical it's a hardware problem. The BMC578x series is listed as supported on the bge(4) man page. Any advice?