dnl $OpenBSD: prep,v 1.6 2020/05/17 17:04:28 deraadt Exp $ The default configuration of the MACHINE systems comes with a Linux installation on the disk (either an IDE hard drive, or a CompactFlash card). At the moment, there is no known way to log in this installation as ``root'' or interrupt the boot process, and start an OpenBSD installation procedure. Because of this, the only way to boot the OpenBSD install is to copy the miniroot "miniroot{:--:}OSrev.img" image to the hard drive or CompactFlash (on the other hand, upgrades can be started by copying bsd.rd to the OpenBSD disk and booting from it). As a result, you will need another machine to plug the machine's disk or CompactFlash in. Any machine type will do, as long as it supports ATA-compatible storage devices, regardless of the partition scheme it uses. Under OpenBSD, it will appear as a ``wd'' device, for example ``wd1''. Use the dd(1) utility to copy the miniroot to the hard drive. The command would likely be, under OpenBSD: dd if=miniroot{:--:}OSrev.img of=/dev/rwd1c Replace ``rwd1c'' with the appropriate device name for the raw device on the system used to do the copy. If the machine has a hard drive, and you had to change jumpers on it to change its ``master'' status, do not forget to configure it back to ``master'' or ``single drive'', as slave drives are not bootable. dnl I need to write a comprehensive text, also explaining that Rx/Tx dnl are swapped between the CF and HD models. In addition to the disk preparation, you will need to connect a serial port connector to the machine. Please refer to the OpenBSD/MACHINE page at https://www.OpenBSD.org/MACHINE.html for more information.