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Re: [Qemu-devel] Serial Console / NoGraphic
From: |
GUERRAZ Francois |
Subject: |
Re: [Qemu-devel] Serial Console / NoGraphic |
Date: |
Tue, 25 Sep 2007 13:37:50 +0200 |
Hi Michael,
About your VNC problems : I have had problems w/ vnc too (see
http://qemu-forum.ipi.fi/viewtopic.php?p=10468) but had no answer as
well...
Anyway, it's better to do like you're doing : installing a VNC server
inside the vm is much better because you can have authentication and
such things... and no mouse / keyboard issues.
I'm using Qemu VNC server for the Qemu supervisor I'm developing (see
http://sourceforge.net/projects/casimir-web/ ) and it works very well
this way : ask qemu vnc to listen in a socket (-vnc
unix:/tmp//vmXXX.vnc) and use socat to make it listen on a tcp port when
you need it (socat TCP4-LISTEN:<port> UNIX-CONNECT:<socket>), socat will
die when the connexion closes, not Qemu :)
I don't know if it is because of the socat thing, but I don't have
problems anymore...
Le mardi 25 septembre 2007 à 11:11 +0100, Michael McConnell a écrit :
> Clemens Kolbitsch wrote:
> > hi!
> > i've been trying around for quite some time now trying to start qemu
> > without
> > the graphic screen... can someone tell me exactly what I'm supposed to do??
> >
> > i want to redirect the output of my i386 debian linux to my host-console
> > (also
> > a i386 debian) to fully see the output of a kernel panic (see previous
> > messages i have posted).
> >
> > i'm starting qemu:
> >
> > qemu -hda myimage -boot c -kernel-kqemu -kernel mykernel -initrd
> > myinitrd -append "root=/dev/hda1 console=/dev/ttyS0" -nographic
> >
> > after tons of trial-and-error i finally got my system to boot, however, the
> > login-screen is not displayed (i see all output of the starting system up
> > until the ">>login:"). how do i connect to the serial line now to get to
> > the
> > login??
>
> Add this to /etc/inittab in the guest system:
> co:2345:respawn:/sbin/agetty ttyS0 9600 vt100-nav
>
> Without that it's only going to put the login prompts on the (now
> hidden) virtual consoles.
>
> The (emulated) hardware display still exists, it's just not shown. I use
> just such a setup for a Win2000 virtual-machine that's accessible by
> VNC. I've had issues with QEMU's own VNC server (it crashes with a core
> dump on disconnection, and no-one on the list was remotely interested)
> so instead I run UltraVNC within Win2000 and connect to that instead.
>