This is something I wrote to help someone else with OpenBSD on Pinebook, it worked for me at the time. Didn’t try recently though.
1. get miniroot.fs 2. write image to SD card: dd if=miniroot6X.fs of=/dev/rsdXc bs=1m (use something else for X) 3. write SPL: dd if=/usr/local/share/u-boot/pinebook/u-boot-sunxi-with-spl.bin of=/dev/sdXc bs=1024 seek=8 (you have to install aarch64 flavor of u-boot port) 4. when boot prompt is shown, type: boot> set tty fb0 (this will get you working display - you will have to enter it at each boot as long as it’s not in boot.conf) 5. proceed with standard installation -- Krystian > Wiadomość napisana przez Alexander Shendi (Web.DE) <alexander.she...@web.de> > w dniu 08.04.2020, o godz. 21:33: > > Hi Krystian, > > Nope, all I see is a black screen. > > Best Regards, > > Alexander > > Am 8. April 2020 21:19:44 MESZ schrieb Krystian Lewandowski > <k.lewandow...@icloud.com>: >> Hi, >> can you see boot prompt at least? >> You could try: >> boot> set tty fb0 >> >> -- >> Krystian >> >>> Wiadomość napisana przez Alexander Shendi (Web.DE) >> <alexander.she...@web.de> w dniu 08.04.2020, o godz. 19:53: >>> >>> Hi, >>> >>> I've been trying to install OpenBSD-current/arm64 on my 11" 1080p >> Pinebook. >>> >>> I did the following (under NetBSD 9, if it's of interest) >>> 1. Download miniroot67.fs >>> 2. Download the dtb package >>> 3. Download the u-boot-aarch64 package. >>> 4. Execute (as root) "dd if=Downloads/miniroot67.fs of=/dev/rld0c >> bs=1m conv=sync" >>> 5. Mount /dev/ld0e on /mnt >>> 6. Execute "mkdir /mnt/vendor/" >>> 7. Unpack the dtb package. Copy the file sun50i-a64-pinebook.dtb to >> /mnt/vendor. >>> 8. Unmount /mnt. >>> 9. Unpack the u-boot-aarch64 package. Locate the file >> "u-boot-sunxi-with-spl.bin". >>> 10. Execute "dd if=u-boot-sunxi-with-spl.bin of=/dev/rsd0c bs=1024 >> seek=8 conv=sync" >>> 11. Reboot >>> 12. Connect an amd64 machine via serial cable to the Pinebook. >> Execute "minicom -D /dev/cuaU0" as root. >>> >>> I fail to see any output on either the Pinebook's screen or the >> serial console. >>> In fact minicom protests that /dev/cuaU0 isn't configured. >>> >>> Any help will be appreciated. >>> >>> Best Regards, >>> >>> Alexander >>> >>> >>> -- >>> You have zero privacy anyway. Get over it. >>> >>> Scott McNealy 1999 > > -- > You have zero privacy anyway. Get over it. > > Scott McNealy 1999
