OpenBSD on BananaPi-M1

a howto for installing OpenBSD on the BananaPi-M1

OpenBSD/armv7 is a port of OpenBSD to various ARMv7 based systems

goals:

• build u-boot with docker
• run OpenBSD from SATA

requirements:

• sdcard for bootloader
• SATA device for system
• cubieboard filesystem for armv7
• sunxi-bootloader

## build bootloader with docker
## after build you will find the bootloader in **/tmp/u-boot**
## see: https://hub.docker.com/r/golenz/u-boot-sunxi-bpim1
> docker run --rm -it -v /tmp/u-boot:/u-boot golenz/u-boot-sunxi-bpim1:latest \
               /bin/sh -c 'apk add python3 python3-dev \
               && git clone git://git.denx.de/u-boot.git \
               && cd u-boot \
               && make -j4 ARCH=arm CROSS_COMPILE=arm-none-eabi- Bananapi_defconfig \
               && make -j4 ARCH=arm CROSS_COMPILE=arm-none-eabi-'

## prepare SATA device
## write system to "sata" device
> dd if=miniroot-cubie-67.fs of=/dev/sdX

## write u-boot to "sdcard"
> dd if=/tmp/u-boot/u-boot-sunxi-with-spl.bin of=/dev/sdX bs=1024 seek=8

now put the stuff together and do the “smoke test” to see if the system cames up - connect serial to TX=P01 RX=P02 GND=P08 or J12

change RX <-> TX if there is no input on console

if there is no other USB device pluged in u-boot choose SATA out of the box otherwise change u-boot environment

## do not miss the boot-cmdline
> setenv bootcmd 'scsi scan; scsi dev 0; scsi part 0:1;run bootcmd_scsi0'
> saveenv # if you want make persistent
> boot

check official OpenBSD on armv7 site