> When attempting to Install OpenBSD (at least) 7.3, 7.4, 7.5 on amd64 virtual > machine in VirtualBox 6.1 on Windows 8.1 (64-bit)
OpenBSD amd64 guests in VirtualBox 6.1 need the configuration System > Motherboard: Disable "Enable I/O APIC", otherwise a kernel panic occurs later. At least on Linux. Worth trying on Windows as well. Ref: https://dev.to/nabbisen/openbsd-73-on-virtualbox-7-installation-as-guest-os-failed-due-to-io-apic-enabled-4ake