#Refind boot manager windows 10 install#

Fortunately, I had made recovery media so I could blow away my X1 Carbon to factory defaults when things went sideways. I tried several times without any luck, and I also rendered my system unbootable a number of times in my quest. The steps to get Windows and OpenBSD working together, as outlined in the OpenBSD Multibooting FAQ seem to not work at all on recent Windows 10 versions, and especially on modern PCs with EFI and GPT disks. I decided to try properly dual-booting Windows and OpenBSD again with my new ThinkPad. That laptop is growing long in the tooth, but it's served me well for the past 5 years.

#Refind boot manager windows 10 install#

My previous laptop - the Acer I upgraded to an i5 for VMM years ago - was set up for dual-boot, but somewhere along the way, the Windows boot manager stopped booting OpenBSD so I'd been using a modified OpenBSD install image on an SD card to load the OpenBSD kernel from the internal SSD, I set the BIOS to prioritize the SD card for booting, and I just remove the SD Card from my Acer if I need to boot Windows. I like small laptops, and this one is light, powerful and is similar to what's used by many of the OpenBSD core developers, so I knew it would probably be well-supported. Frankly, the X1 series has been my dream machine for years. I recently purchased a 13.3' 8th Gen Lenovo ThinkPad X1 Carbon. That page has all up-to-date details, and this post is no longer the best available source of information on this topic. The information here has been refined and documented in a dedicated page for Multi-Booting Windows 10 and OpenBSD.