November 19, 2025 at 3:56 PM, "Doug Moss" <[email protected] mailto:[email protected]?to=%22Doug%20Moss%22%20%3Cdougmoss710%40yahoo.com%3E > wrote:
> > First, my appreciation to developers for getting Raspberry Pi 5 working with > OpenBSD. > > Quirk#1: I wanted to re-affirm that serial console from GPIO > (which works for Raspberry Pi 4 on pins 6,8,10) > does not work for Raspberry Pi 5. > Fix#1: Instead, UART header using JST SH 1.0 is necessary > https://www.adafruit.com/product/5755 worked for me > connected to a FT232R serial-to-USB > with speed 115200 > > Quirk#2: the 7.8 release does not boot on RaspberryPi 5 > using install78.img from pub/OpenBSD/7.8/arm64/ > file date: 2025 Oct 12 > file size: 549257216 > fails with error that bsd kernel cannot boot (something like unable to read) > Fix#2: install78.img from pub/OpenBSD/snapshots/arm64 > does boot, and can be used to install > May I ask - would it be possible to put some note in the release folder > pub/OpenBSD/7.8/arm64 to warn people of this? > > Quirk#3: Weird: Getting past U-boot, to actually boot kernel > seems to require that the UART (serial console) be powered. > In all tests, Raspberry Pi 5 has network, USB keyboard, USB mouse, HDMI to > screen > Test1: > UART connected, and with call-up (cu) displaying serial output > HDMI connected > result: HDMI shows red splash screen, U-boot, then text serial console, able > to login > Test2: > UART connected, FT232R connected (USB powered), but cu not running on other > computer > HDMI connected > result: HDMI shows red splash screen, U-boot, then text serial console, able > to login > Test3: > UART connected, FT232R unplugged from USB port (no power to chip FT2323R) > HDMI connected > result: HDMI shows red splash screen, U-boot(submarine), but never boots > > Is this known? > Is there some setting to change in the Raspberry Pi 5 boot settings? > > Thank you > Hi Doug, my situation here looks like your Test3, my serial is not here yet so I can only try hdmi options. And I get to boot till mounting root (I use edk2 not u-boot). I saw here someone that had to disable bwfm driver, but just after boot -c I get a screen to freeze while the cursor is weird almost blinking, but its has weirds stripes of blink and not there. I must wait for serial :( thanks for the info! :) ------------ "We will call you Cygnus, The God of balance you shall be."
