OpenBSD/amd64

OpenBSD amd64

OpenBSD/amd64 runs on AMD's Athlon-64 family of processors in 64-bit mode. It also runs on processors made by other manufacturers which have cloned the AMD64 extensions.

Note that OpenBSD/i386 also runs on these processors, but in 32-bit mode.

X Window System support is available for most graphics cards, using the X.Org server. As with other free operating systems it is highly recommended that Nvidia cards are avoided since this vendor continues to show tremendous resistance towards releasing information that would allow X.Org to support their hardware properly.

Current status:

The only major shortcoming at this time is that the kernel debugger ddb is somewhat poor.

Supported hardware:

Processors

All versions of the AMD Athlon 64 processors and their clones are supported.

Unsupported Hardware:

New hardware is constantly being released, some of which may lack support. Your donation of time, hardware, or documentation can accelerate this support!

Getting and installing OpenBSD/amd64:

The latest supported OpenBSD/amd64 release is OpenBSD 7.5. Here are the OpenBSD/amd64 installation instructions.

Snapshots are made available from time to time, in this location as well as on a few mirrors. Here are the OpenBSD/amd64 snapshot installation instructions as well.

There are several installation media provided:

CD image (install75.iso)
The CD ISO provides an El Torito no-emulation boot image that includes almost all OpenBSD drivers. This also includes minimal USB support (storage devices and keyboard).
For the latest list of drivers available on this image, take a look at the RAMDISK_CD kernel configuration file.
Disk image (miniroot75.img)
The same installer as the CD ISO, but in a form suitable for creating bootable hard drives or USB flash drives.
Floppy A (floppy75.img)
This 1.44MB floppy image contains the most common drivers. It is designed to cover the most typical PC. As a general rule, you will find that the missing drivers are ones which need large microcodes to run, such as for rare SCSI cards, gigabit ethernet cards, or RAID devices.
For the latest list of drivers available on this image, take a look at the RAMDISK kernel configuration file.