OpenBSD/riscv64

OpenBSD riscv64

OpenBSD/riscv64 is a port of OpenBSD to various 64-bit RISC-V based systems.

Current status

The current target platform is the HiFive Unmatched board.

When booting the HiFive Unmatched board, write an install/miniroot image to a USB flash drive, and boot with that drive plugged in. Make sure you also have the microSD card plugged in that shipped with the HiFive Unmatched board. The board should auto-boot the OpenBSD bootloader, which will load the bsd.rd RAMDISK install kernel.

Supported hardware

OpenBSD/riscv64 runs on the following hardware:

SiFive
- HiFive Unmatched
StarFive
- StarFive VisionFive
- Note: Some firmware configuration tweaks are necessary to boot OpenBSD
Microsemi
- PolarFire SoC Icicle Kit
- Note:PolarFire SoC Icicle Kit support is incomplete

Ethernet

cad(4) integrated Cadence Gigabit Ethernet controller

Storage

dwmmc(4) on StarFive VisionFive
nvme(4) on HiFive Unmatched

USB

xhci(4) on HiFive Unmatched and StarFive VisionFive

Getting and installing OpenBSD/riscv64:

The latest supported OpenBSD/riscv64 release is OpenBSD 7.3. Here are the OpenBSD/riscv64 installation instructions.

Snapshots are made available from time to time, in this location as well as on a few mirrors. Here are the OpenBSD/riscv64 snapshot installation instructions as well.