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[Xen-devel] xen brings machine in a boot loop. Serial console output attached.



was subject: Re: [Xen-devel] Invalid or unsupported executable format, or is it a reiserfs problem?
continuation under new subject header

OK, made the changes to menu.lst, also grub serial console works (unreleated error)
The entire root (including /boot) partition is now ext3.

menu.lst looks like:

=== start ===
title          Xen 2.0
kernel      /boot/xen.gz dom0_mem=64000 com1=115200n81
module    /boot/vmlinuz-2.6.10-xen0 root=/dev/hda1 ro console=tty0 console=ttyS0
module    /boot/initrd.img-2.6.10-xen0
=== end ===

this is what the serial console shows when booted without initrd:
=== start ===
kernel  /boot/xen.gz dom0_mem=64000 com1=115200,n81
   [Multiboot-elf, <0x100000:0x3ef7c:0x3536c>, shtab=0x175078, entry=0x100000]
module  /boot/vmlinuz-2.6.10-xen0 root=/dev/hda1 ro console=tty console=ttyS0
   [Multiboot-module @ 0x176000, 0x40919c bytes]
=== end ===

with initrd:
=== start ===
kernel  /boot/xen.gz dom0_mem=64000 com1=115200,n81
   [Multiboot-elf, <0x100000:0x3ef7c:0x3536c>, shtab=0x175078, entry=0x100000]
module  /boot/vmlinuz-2.6.10-xen0 root=/dev/hda1 ro console=tty console=ttyS0
   [Multiboot-module @ 0x176000, 0x40919c bytes]
=== end ===

And then the machine reboots automatically. Is my hardware simply inadequate for xen?
Pentium 200Mhz (P6-class)
64 MB ram
2.0 GB HD
=> It's just a proof of concept setup to convice our IT manager of the benefits.

Does this provide any usefull information?

Thanx in advance,

Regards,

Filip Sergeys



On Sat, 2005-02-19 at 20:22, Christian Limpach wrote:
On 18 Feb 2005 14:03:07 +0100, Filip Sergeys
<filip.sergeys@xxxxxxxxxxxxxxxx> wrote:
> I have reinstalled that machine with a ext3 /boot partition and a reiserfs /
> partition 
> Entry for Xen: 
> title Xen-2.0 
> root (hd0,0) # also tried without 
> kernel /xen.gz dom0_mem=64000 
> module /vmlinux-2.6.10-xen0 root=/dev/hda4 ro console=tty0
> console=ttyS0,115200n8 
> module /initrd.img-2.6.10-xen0 #also tried without 

You need to pass com1=115200,8n1 on the "kernel /xen.gz" line and
don't need the ",115200n8"-part on the "module /vmlinux..." line.

> Result: 
> ------- 
> The xen kernel does not boot 
> I don't see anything on the terminal from grub or xenlinux  (I do see the
> output when booting the normal debian kernel) 
> I am lost ! 

Do you not see the output from grub?  Then you will need to fix that
first.  Since you have a working menu.lst for booting the normal
debian kernel, you could start from that and only change the entry.

     christian


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