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Re: [Xen-users] Re: Xen kernel problem

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Alexander Attarian <alex@xxxxxxxxxx>
  • Date: Fri, 05 Aug 2005 18:22:19 -0700
  • Delivery-date: Sat, 06 Aug 2005 01:20:45 +0000
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

I wasn't blaming the kernel, the kernel blame was for the previos problem, this one is a new one. Xen is running without any problems, and from dom0 i'm trying to start my newly created dom1 with the xenU kernel. And that starts up fine, I can login via the console to dom1 and to the system. The only problem is dom1 is not picking up an IP from xen.


Jorge I. Davila L. wrote:

well, I think that there is not enough information to say that is the xen
kernel the problem.

You have a single physical machine and you are trying to connect to the
other domains from domain0 ??

Alexander dijo:
I guess FC4 is not doing very well. I just installed FC3 and compiled the
latest 2.0.7 xen and rebooted, everything just works fine! Had to do the
initrd image, and after that things are running smooth.

The only thing that I'm working on right now is, my xenU is starting fine,
allocated 1GB memory to it, but somehow the network is not coming up.

The motherboard has 2 Broadcom GbE ports, the network is currently
to eth1. In xenU configuration I have "alias eth0 xen_net" in
/etc/modprobe.conf, and in /etc/sysconfig/network, I only have networking
yes and the hostname. Besides that I have a simple ifcfg-eth0 in
/etc/sysconfig/network-scripts/, which just says device=eth0,
bootproto=dhcp, onboot=on
The same configuration I have on a regular desktop, and it is working
Does the dual LAN do anything different here? WHen I start the network it
just says determining IP for eth0 and it just hangs there, and then fails
after a minute.

Any help is appreciated.


Alexander writes:

Hi everyone,

I'm getting the following boot error, when installing xen-unstable on a
dual opteron 246 machine, with a Tyan 2881 Motherboard, 4GB RAM, SATA
Drive and ReiserFS filesystem. The machine is a Fedora Core 4.
I installed the i386 FC4 on the dual opteron, I didn't want the 64bit
All my binaries are 32bit and I'm compiling it all with 32bit too.

After downloading xen-unstable, I did make world and make install. I'm
using gcc4, I'm using gcc 3.2.3, it works fine, the compiling is without
any problems. I put the following in my grub.conf:

title Fedora Core-up (Xen 3.0)
     root (hd0,0)
     kernel /boot/xen.gz dom0_mem=262144
     module /boot/vmlinuz-2.6-xen0 root=/dev/sda1 ro console=tty0

I didn't put an initrd image yet because I wanted to see if Xen will
at all, but once the machine restarts, after xen.gz it tries to load
vmlinuz-2.6-xen0 and gives the following error: Error 4: Bad or
incompatible header in the compressed file.

It doesn't boot after that, gives me the option to go back to grub menu
and choose a different boot option where I start back to my default FC4

Any idea why this would happen? I have a feeling xen.gz is loading fine,
but the dom0 kernel is giving that error.


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