I had a similar situation with my laptop and found a solution in the FAQ: http://www.openbsd.org/faq/faq14.html#flashmemLive
Essentially what I had to do was boot from CD on the desktop system (using an ISO for the desktop system's architecture) and then do an install of OpenBSD onto the flash drive. After that, you can boot into the system from the flash drive and then download the bsd.rd file for the architecture of the laptop you want to install on from pub/OpenBSD/<RELEASE>/<ARCH>/bsd.rd and save it to the root directory of the flash drive install. Then boot from the flash drive on the laptop, when the boot prompt comes up, enter the name of the bsd.rd that you downloaded and boot into the installer. On Mon, Feb 11, 2013 at 5:51 PM, Heptas Torres <hepta...@gmail.com> wrote: > Hello > I have an old laptop with no CD-ROM but can boot from USB. Given that > I only have access to a windows machine to burn an iso image, do you > know of an easy way (e.g. some windows programa) to create a bootable > OpenBSD USB stick which I can then use to install OpenBSD on my old > laptop? > -heptas > > -- -Christopher Sasarak