Re: How to enable PC-Console on boot

[Matthias Petermann <mp%petermann-it.de@localhost>]

Hi Pierre-Philipp,

Am 02.02.2021 um 17:44 schrieb Pierre-Philipp Braun:
> > So I tried:
> >
> > menu=Boot Xen:load /netbsd-XEN3_DOM0.gz console=pc;multiboot /xen.gz 
> > dom0_mem=512M console=vga dom0_max_vcpus=1 dom0_vcpus_pin
> >
> > as well as
> >
> > menu=Boot Xen:load /netbsd-XEN3_DOM0.gz consdev=pc;multiboot /xen.gz 
> > dom0_mem=512M console=vga dom0_max_vcpus=1 dom0_vcpus_pin
>
> no, consdev is only to be used inteactively at the prompt.
>
> > with no notable change. So I still get the Xen boot message displayed 
> > or about one second, and then the screen gets cleared and remains empty.
>
> you mean the xen boot message that says that it's booting netbsd, 
> correct?  Your issue is only about netbsd kernel not showing up, while 
> you do see (XEN) booting?  Or you don't see anything booting including 
> XEN itself?

Not quite - I actually see a quite detailed message for a short moment 
(similar to [1] - the photo is not from my system though - I'll try to 
catch it with my camera after work).

Since I have the affected system twice (a small intel NUC5) I did a 
BIOS/MBR install of NetBSD once last night on the second system and did 
exactly the same steps to install Xen. Here I actually get a usable 
console with the following Boot.cfg entry:

```
menu=Boot Xen:load /netbsd-XEN3_DOM0.gz console=pc;multiboot /xen.gz 
dom0_mem=512M dom0_max_vcpus=1 dom0_vcpus_pin console=vga
```

Interestingly, the system boots correctly here even without explicitly 
specifying the root parameter. I seem to remember that the automatic 
detection of the root FS is more reliable with MBR than with GPT in this 
particular case.


Kind regards
Matthias


[1] 
https://user-images.githubusercontent.com/31647414/61176298-fa5f8500-a5ad-11e9-90fb-94c93984d405.png



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