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Re: [Xen-users] Installing Xen4.0.1 on Ubuntu 10.04 LTS issues (VGA cras

To: Priya <pbhat@xxxxxxxxxxxx>
Subject: Re: [Xen-users] Installing Xen4.0.1 on Ubuntu 10.04 LTS issues (VGA crashes at boot-up)
From: Bruce Edge <bruce.edge@xxxxxxxxx>
Date: Mon, 27 Sep 2010 16:33:09 -0700
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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On Mon, Sep 27, 2010 at 4:00 PM, Priya <pbhat@xxxxxxxxxxxx> wrote:
> Hey Guys !
> I am trying to install Xen 4.0.1 on Ubuntu 10.04 LTS on a 64-bit machine.
> Basically the issue that I am facing is that when I try to boot up my
> Domain0, my video display driver crashes and the system simply hangs.
> I am using an Intel graphics card:
> $ lspci -v | grep VGA
> 00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset
> Integrated Graphics Controller (rev 03)
> I did some Google search and people had suggested to use the "nomodeset" and
> the "i915.modeset=0" options in the grub file in order to disable the KMS.
> Accordingly, I changed my /etc/grub.d/40_custom file to:
> $ more /etc/grub.d/40_custom
> #!/bin/sh
> exec tail -n +3 $0
> # This file provides an easy way to add custom menu entries.  Simply type
> the
> # menu entries you want to add after this comment.  Be careful not to change
> # the 'exec tail' line above.
> menuentry 'Xen 4.0.1, Ubuntu 10.4 kernel' {
>         recordfail
>         insmod ext2
>         set root='(hd0,1)'
>         multiboot (hd0,1)/boot/xen-4.0.1.gz dummy=dummy dom0_mem=832M
>         module (hd0,1)/boot/vmlinuz- dummy=dummy root=/dev/sda1
> nopat ro nomodeset console=tty0 earlyprintk=xen
>         module (hd0,1)/boot/initrd.img-
> }
> I have also tried to replace the "nomodeset" with "i915.modeset=0" in the
> above file and it still does not work.
> I am confident that it is the graphics that causing the boot failure because
> when I disable them (by doing "mv /etc/init/gdm.conf
> /etc/init/gdm.disabled"), the command-line based dom-0 comes up just fine.
> Can anyone throw some light on what could be causing the issue and what a
> possible work around can be?

You're going to be asked for the dom0 serial console output as that's
what shows why it crashed.
Set the dom0 to use a serial console and hook that up to another
machine so you can capture it using minicom or something like that.


> --
> Priya Bhat
> _______________________________________________
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