Marco Moock <mm@dorfdsl.de> wrote:

Hello!

I have a RPi 4B. I used it with Debian in the past, now I want to use FreeBSD 15.1. I extracted the .xz file and wrote the .img to the disk,
the 2 partitions are there.

Although, I only see the rainbow bootscreen.

Now someone suggested that I should look at the serial output.

I connected a TTL to USB adapter. Does this already give output during
the boot process (with or without the OS loaded)?

I used this adapter successfully at a Switch, so it is operational, but
I need to know which speed/duplex settings the RPi requires during the
boot process.

Thanks for any suggestions.

I've been using FreeBSD-current and -release on RPi4Bs for some
time now, they seem to work faultlessly. I'm tempted to suggest
a different image file. The serial console has been active without
any obvious intervention on my part.

For serial consoles I use tip on the terminal host, with the line ucom:dv=/dev/cuaU0:br#115200:pa=none:
added to /etc/remote.

hth,

bob prohaska


--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

Marco Moock <mm@dorfdsl.de> wrote:

Hello!

I have a RPi 4B. I used it with Debian in the past, now I want to use FreeBSD 15.1. I extracted the .xz file and wrote the .img to the disk,
the 2 partitions are there.

Although, I only see the rainbow bootscreen.

Did you check both HDMI ports? Some OSes only show boot messages on one screen.

Now someone suggested that I should look at the serial output.

I connected a TTL to USB adapter. Does this already give output during
the boot process (with or without the OS loaded)?

I used this adapter successfully at a Switch, so it is operational, but
I need to know which speed/duplex settings the RPi requires during the
boot process.

I can't comment on this particular OS, but most console outputs these days
are 115200 baud 8N1 (8 bits, no parity, 1 stop bit). If that doesn't work, it's almost always 8N1 but you can try other speeds (57600, 38400, 19200
etc).

Theo

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

Theo <theom+news@chiark.greenend.org.uk> writes:

Marco Moock <mm@dorfdsl.de> wrote:

Hello!

I have a RPi 4B. I used it with Debian in the past, now I want to use
FreeBSD 15.1. I extracted the .xz file and wrote the .img to the disk,
the 2 partitions are there.

Although, I only see the rainbow bootscreen.

Did you check both HDMI ports? Some OSes only show boot messages on one screen.

Now someone suggested that I should look at the serial output.

I connected a TTL to USB adapter. Does this already give output during
the boot process (with or without the OS loaded)?

I used this adapter successfully at a Switch, so it is operational, but
I need to know which speed/duplex settings the RPi requires during the
boot process.

I can't comment on this particular OS, but most console outputs these days are 115200 baud 8N1 (8 bits, no parity, 1 stop bit). If that doesn't work, it's almost always 8N1 but you can try other speeds (57600, 38400, 19200 etc).

Theo

What a fantastic idea. I've been connecting the pi's to a screen and
keyboard during initial config. Didn't ever think to get a ttl adapter for headless config. Sometimes I wished I could. Now I have incentive to get
gentoo on my 3b+ since freebsd 14.5 doesn't support the audio chip on
that board.

I love usenet.

--
Daniel
sysop | air & wave bbs
finger | info@bbs.airandwave.net

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

Hello!

I have a RPi 4B. I used it with Debian in the past, now I want to use
FreeBSD 15.1. I extracted the .xz file and wrote the .img to the disk,
the 2 partitions are there.

Although, I only see the rainbow bootscreen.

Now someone suggested that I should look at the serial output.

I connected a TTL to USB adapter. Does this already give output during
the boot process (with or without the OS loaded)?

I used this adapter successfully at a Switch, so it is operational, but
I need to know which speed/duplex settings the RPi requires during the
boot process.

Thanks for any suggestions.

--
kind regards
Marco

Spam bitte an abfalleimer2001@stinkedores.dorfdsl.de


--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

Am 17.10.26 um 15:52 schrieb Theo:

Did you check both HDMI ports? Some OSes only show boot messages on one screen.

That seems to be the issue in my case. Although I removed and reinserted
the SD card.

I will figure out if that issue can be triggered again.

--
Gruá
Marco

Spam bitte an abfalleimer2001@stinkedores.dorfdsl.de

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

On 10/17/26 13:57, Marco Moock wrote:

Hello!

I have a RPi 4B. I used it with Debian in the past, now I want to use FreeBSD 15.1. I extracted the .xz file and wrote the .img to the disk,
the 2 partitions are there.

Although, I only see the rainbow bootscreen.

Now someone suggested that I should look at the serial output.

I connected a TTL to USB adapter. Does this already give output during
the boot process (with or without the OS loaded)?

ON an Orange Pi 5, which I assume is similar, it does give boot loader
output, the Orange Pi uses U-boot, I think the rPi also use U-Boot, but
I'm not certain.

I used this adapter successfully at a Switch, so it is operational, but
I need to know which speed/duplex settings the RPi requires during the
boot process.

The oPi5 uses baud:1.5 Mb/s, Parity:none, bits:8, stopbits:1, flow control:none. I use an FT323RL chip.

Thanks for any suggestions.

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

Am 18.10.26 um 15:34 schrieb Marco Moock:

Am 17.10.26 um 15:52 schrieb Theo:

Did you check both HDMI ports?ÿ Some OSes only show boot messages on one
screen.

That seems to be the issue in my case. Although I removed and reinserted
the SD card.

I will figure out if that issue can be triggered again.

Checked - the other HDMI output keeps showing the colored boot screen.
OS is booting fine.

--
Gruá
Marco

Spam bitte an abfalleimer2001@stinkedores.dorfdsl.de

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

Marco Moock <mm@dorfdsl.de> wrote:

Am 18.10.26 um 15:34 schrieb Marco Moock:

Am 17.10.26 um 15:52 schrieb Theo:

Did you check both HDMI ports?ÿ Some OSes only show boot messages on one >>> screen.

That seems to be the issue in my case. Although I removed and reinserted
the SD card.

I will figure out if that issue can be triggered again.

Checked - the other HDMI output keeps showing the colored boot screen.
OS is booting fine.

Which OS? I don't recall seeing a rainbow screen on a Pi booting
FreeBSD, though I haven't checked recently. I always thought the
rainbow was a RasPiOS feature, though I guess it could be in the
Pi4's firmware now.

Thanks for reading,

bob prohaska


--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

Am 21.10.26 um 20:49 schrieb bp@www.zefox.net:

Marco Moock <mm@dorfdsl.de> wrote:

Am 18.10.26 um 15:34 schrieb Marco Moock:

Am 17.10.26 um 15:52 schrieb Theo:

Did you check both HDMI ports?ÿ Some OSes only show boot messages on one >>>> screen.

That seems to be the issue in my case. Although I removed and reinserted >>> the SD card.

I will figure out if that issue can be triggered again.

Checked - the other HDMI output keeps showing the colored boot screen.
OS is booting fine.

Which OS? I don't recall seeing a rainbow screen on a Pi booting
FreeBSD, though I haven't checked recently. I always thought the
rainbow was a RasPiOS feature, though I guess it could be in the
Pi4's firmware now.

It is in the firmware. I had it with Debian and with FreeBSD.
Never used Raspberry Pi OS.

--
Gruá
Marco

Spam bitte an abfalleimer2001@stinkedores.dorfdsl.de

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)