On 2025/09/24 08:21, Brandon Mercer wrote:
> On Wed, Sep 24, 2025, at 6:03 AM, Bernhard Ernst wrote:
> > Am Wed, 24 Sep 2025 09:30:56 +0100
> > schrieb Stuart Henderson <[email protected]>:
> >
> >> On 2025/09/23 22:22, Bernhard Ernst wrote:
> >> > Thanks for clarification, Mark.
> >> > But even my installation via serial fails.  
> >> 
> >> Is that via a standard ttl serial adapter? I believe that at this
> >> point, specifically the debug probe that Mark mentioned is required,
> >> connected to the 3-pin header. AFAIK the GPIO pins as used on earlier
> >> Pi machines will not work here.
> >> 
> >> > Better I wait for the OBSD 7.8-stable.  
> >> 
> >> We are currently in the wind-down towards 7.8 so unless changed soon,
> >> this will be how things look for 7.8.
> >> 
> >
> > Firstly I used a standard ttl serial adaptor (which was very very often
> > used for installation of OBSD on RaspberryPi 4B and BananaPi M5). But 3
> > days ago I bought the debug probe, and had the same result: nothing
> > comes over the serial. It makes me crazy to read here that some other
> > guys successfully installed OBSD, but not me.
> 
> Hello Bernhard,
> I've recently built several headers to connect to my pi5's and I've ended up 
> with a few that did not work. I'm using a usb -> ttl with a cable with 3 
> pins. I believe this is what you mean by debug probe. If you're not seeing 
> anything in the console there are a couple things to look at: console speed, 
> and the boot config to make sure the uart is enabled. Past that, you should 
> see uboot come up if the console is working. If you are getting past that 
> then we have different issues. Please test the continuity of the rx and tx 
> side independently because I've had 2 cables now that the rx works, but tx 
> has an open. 

oh yes, for continuity you can just connect tx and rx together and make
sure that you get things echoed back..

> Hopefully this helps. It does sound like you've done things correctly though. 
> Brandon
> 

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