Re: OT Kernel debug
On Tue, May 26, 2009 at 12:01:25AM +0200, Leopold Palomo Avellaneda wrote:
> A Dilluns 25 Maig 2009, Douglas A. Tutty va escriure:
> > On Mon, May 25, 2009 at 08:16:14PM +0200, Leopold Palomo Avellaneda wrote:
> > Here's my /boot/grub/menu.lst that shows how to set it up. Grub will
> > start with something like "press a key to continue" so that it knows
> > whether you're at the serial console or the main (VGA) console, and
> > thend presents the usual menu.
>
> Thanks a lot. Tomorrow I will find a serial cable .... I hope that the
> Poweredge server has serial console...
>
> But, if you have serial console, do you have vga?
Sure, inittab still gives you a getty on the VGA.
Grub can only use _either_ the serial or the VGA.
The kernel will send messages to whatever console= commands you give it,
accepting input on the last console= given. Thus, the serial-console
entry in menu.lst is console=tty console=ttyS1,38400n8. You'll get
message on both.
Another option for you if you have either a serial or paralell printer
(I don't know if it works for USB printers) is to use lp0 as a console
parameter, before console=tty, so that input is still from the VGA, but
messages are printed out directly.
Doug.
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