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Re: [Xen-users] how to start X in the guest domain

To: "Mark Williamson" <mark.williamson@xxxxxxxxxxxx>
Subject: Re: [Xen-users] how to start X in the guest domain
From: "Henning Sprang" <henning_sprang@xxxxxx>
Date: Wed, 31 Jan 2007 12:33:06 -0600
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On 1/31/07, Mark Williamson <mark.williamson@xxxxxxxxxxxx> wrote:
Weird...  Could you post the /etc/inittab, domain config file and anything
else that might be relevant so I can look at them all together?

Guest and Host OS are debian etch. Xen is Sources from Xensource in
default config, no kernel options changed yet.

inittab of the guest:

--- inittab start ---
:~# cat /etc/inittab
# /etc/inittab: init(8) configuration.
# $Id: inittab,v 1.91 2002/01/25 13:35:21 miquels Exp $

# The default runlevel.
id:2:initdefault:

# Boot-time system configuration/initialization script.
# This is run first except when booting in emergency (-b) mode.
si::sysinit:/etc/init.d/rcS

# What to do in single-user mode.
~~:S:wait:/sbin/sulogin

# /etc/init.d executes the S and K scripts upon change
# of runlevel.
#
# Runlevel 0 is halt.
# Runlevel 1 is single-user.
# Runlevels 2-5 are multi-user.
# Runlevel 6 is reboot.

l0:0:wait:/etc/init.d/rc 0
l1:1:wait:/etc/init.d/rc 1
l2:2:wait:/etc/init.d/rc 2
l3:3:wait:/etc/init.d/rc 3
l4:4:wait:/etc/init.d/rc 4
l5:5:wait:/etc/init.d/rc 5
l6:6:wait:/etc/init.d/rc 6
# Normally not reached, but fallthrough in case of emergency.
z6:6:respawn:/sbin/sulogin

# What to do when CTRL-ALT-DEL is pressed.
ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now

# Action on special keypress (ALT-UpArrow).
#kb::kbrequest:/bin/echo "Keyboard Request--edit /etc/inittab to let this work."

# What to do when the power fails/returns.
pf::powerwait:/etc/init.d/powerfail start
pn::powerfailnow:/etc/init.d/powerfail now
po::powerokwait:/etc/init.d/powerfail stop

# /sbin/getty invocations for the runlevels.
#
# The "id" field MUST be the same as the last
# characters of the device (after "tty").
#
# Format:
#  <id>:<runlevels>:<action>:<process>
#
# Note that on most Debian systems tty7 is used by the X Window System,
# so if you want to add more getty's go ahead but skip tty7 if you run X.
#
1:2345:respawn:/sbin/getty 38400 tty1
#2:23:respawn:/sbin/getty 38400 tty2
#3:23:respawn:/sbin/getty 38400 tty3
#4:23:respawn:/sbin/getty 38400 tty4
#5:23:respawn:/sbin/getty 38400 tty5
#6:23:respawn:/sbin/getty 38400 tty6

S0:2345:respawn:/sbin/mingetty ttyS0

# Example how to put a getty on a serial line (for a terminal)
#
#T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100
#T1:23:respawn:/sbin/getty -L ttyS1 9600 vt100

# Example how to put a getty on a modem line.
#
#T3:23:respawn:/sbin/mgetty -x0 -s 57600 ttyS3

--- inittab end ---

domU config:

--- domu start ---
kernel='/boot/vmlinuz-2.6-xen'
ramdisk='/boot/initrd.img-2.6.16.33-xen'
#ramdisk='/boot/initrd-2.6-xen.img'
#kernel='/boot/vmlinuz-2.6-xenU'
memory = 64
name = "test-vm"
vif = [ '' ]
disk = [ 'file:/var/xen/domains/test-vm/disk.img,xvda1,w',
'file:/var/xen/domains/test-vm/swap.img,xvda2,w' ]
#disk = [ 'file:/var/xen/domains/test-vm/disk.img,sda1,w',
'file:/var/xen/domains/test-vm/swap.img,sda2,w' ]
root = "/dev/xvda1"
#root = "/dev/sda1"
vfb=['type=sdl']
#usb=1
#usbdevice='mouse'
#
xencons='ttyS0'
console='ttyS0'
video='xenfb'

--- domu end ---



Also, did you check the vfb driver was compiled into the guest?  It's not
built by default.

Hmm, really? On Xen 3.0.4 from XenSource it is enabled as a module.
Does it have to be compiled in instead of a module?
Will try this... takes a while...

BTW: when trying to load the module, it says

FATAL: Error inserting vfb
(/lib/modules/2.6.16.33-xen/kernel/drivers/video/vfb.ko): No such
device or address

I'll be back after Kernel build with framebuffer + fb console driver
as non-module :)

Henning

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