[Linux-ia64] serial efishell anybody?

[Linux-ia64] serial efishell anybody?

[Christoph Rohland]

Hi,

I have everything working over serial line. Apparently the efishell
does also use the serial line. But I do not know the port settings and
how to adjust them.

Any help appreciated
        		Christoph

Re: [Linux-ia64] serial efishell anybody?

[Jes Sorensen]

>>>>> "Christoph" = Christoph Rohland <cr@sap.com> writes:

Christoph> Hi, I have everything working over serial line. Apparently
Christoph> the efishell does also use the serial line. But I do not
Christoph> know the port settings and how to adjust them.

115k2 8n1 afaik

Jes

Re: [Linux-ia64] serial efishell anybody?

[Stephane Eranian]

> >>>>> "Christoph" = Christoph Rohland <cr@sap.com> writes:
> 
> Christoph> Hi, I have everything working over serial line. Apparently
> Christoph> the efishell does also use the serial line. But I do not
> Christoph> know the port settings and how to adjust them.
> 
> 115k2 8n1 afaik
> 
Well, that's the speed of the serial connection by default. That's
good enough to connect a Linux serial console.

I think Roland was talking about COMPLETELY booting via serial, i.e. 
getting EFI on serial line. Yes, that's possible but I haven't
certainely tried that yet. I think you have to set some EFI variable
in NVRAM and reboot. Check out the EFI spec near the end.

-Stephane

Re: [Linux-ia64] serial efishell anybody?

[Jes Sorensen]

>>>>> "Stephane" = Stephane Eranian <eranian@cello.hpl.hp.com> writes:

>> >>>>> "Christoph" = Christoph Rohland <cr@sap.com> writes:
>>  115k2 8n1 afaik
>> 
Stephane> Well, that's the speed of the serial connection by
Stephane> default. That's good enough to connect a Linux serial
Stephane> console.

Stephane> I think Roland was talking about COMPLETELY booting via
Stephane> serial, i.e.  getting EFI on serial line. Yes, that's
Stephane> possible but I haven't certainely tried that yet. I think
Stephane> you have to set some EFI variable in NVRAM and reboot. Check
Stephane> out the EFI spec near the end.

Ahhh, I would be quite interested in that bit in fact ;-)

Jes

Re: [Linux-ia64] serial efishell anybody?

[Christoph Rohland]

Stephane Eranian <eranian@cello.hpl.hp.com> writes:

> > 115k2 8n1 afaik
> > 
> Well, that's the speed of the serial connection by default. That's
> good enough to connect a Linux serial console.
> 
> I think Roland was talking about COMPLETELY booting via serial, i.e. 
> getting EFI on serial line. 

Yes, that's right. 

> Yes, that's possible but I haven't certainely tried that yet. I
> think you have to set some EFI variable in NVRAM and reboot. Check
> out the EFI spec near the end.

I checked the spec and found the variables to set: 

ConIn, ConOut and ErrOut

Actually ErrOut is set to the serial line on my machine. But how do I
change these variables?

Greetings
		Christoph