> Date: Sat, 25 Oct 2025 21:51:18 +0200 > From: Thomas <[email protected]> > > Dear all, > > I have bought a RPI5 today and tried to install the 7.8 miniroot (and that of > the latest snapshot) on it without success. > > Well, it's just that I cannot get any text output. I have seen a thread in > September on this mailing list that mentions the same issues and that the > serial is on the debug headers.
Serial on the rpi5 is on the debug UART port. > However the release notes of 7.8 say that the console is on the > serial port. Does that mean the debug headers? I had initially > understood it as the normal GPIO pins. I would like to double check > this before I buy the necessary cable. > > I've been a very happy OpenBSD user on a RPI4B for the last 2 years > and looking for a speed upgrade. I have the Raspberry OS running > with the console on UART fine. Some details below in case it's a > board that's too recent: > > cat /proc/cpuinfo | grep Revision > Revision : e04171 > > vcgencmd bootloader_version > 2025/06/13 10:39:26 > version 5855b10b2bd22b2a116dc91f6b5b1bc4b2ea849f (release) > timestamp 1749807566 > update-time 0 > capabilities 0x0000007f > > vcgencmd bootloader_config > [all] > BOOT_UART=1 > BOOT_ORDER=0xf461 > NET_INSTALL_AT_POWER_ON=1 > > vcgencmd version > 2025/06/13 10:39:26 > Copyright (c) 2012 Broadcom > version 5855b10b (release) (embedded) > > After the previous messages from this list, I tried to add these > options to the > default config.txt provided with the miniroot: > dtoverlay=uart0-pi5 > dtparam=uart0=on > dtparam=uart0_console This doesn't work. The only thing that last line seems to do is change the Linux kernel command line. That obviously has zero effect on OpenBSD.
