RE: Xen on Squeeze won't start
- From: Mike Viau <viaum@xxxxxxxxxxxxxxx>
- Date: Fri, 2 Jul 2010 17:35:56 -0400
Date: Fri, 2 Jul 2010 13:51:14 -0700
Subject: Re: Xen on Squeeze won't start
From: rippls@xxxxxxxxxxxxxxxxxxx
To: debian-user@xxxxxxxxxxxxxxxx
CC: waldi@xxxxxxxxxx
Well just in case someone else hits this... once my colleague
suggested I look closer at what grub2 was doing, and after more time
on Google and experimenting I came up with this... the actual xen 3.4
hypervisor isn't being put into the grub2 boot list. It's not good
booting off the one that says ...-xen-... as that appears to be the
paravirtualised kernel, not the hypervisor. So, the following in
/etc/grub.d/40_custom
menuentry "Xen 3.4 / Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64" {
insmod raid
insmod mdraid
insmod ext2
set root='(md0)'
search --no-floppy --fs-uuid --set c924a87f-1ff0-4483-8029-a0e67dcc434f
multiboot (md0)/boot/xen-3.4-amd64.gz dummy=dummy
module (md0)/boot/vmlinuz-2.6.32-5-xen-amd64 dummy=dummy
root=UUID=c924a87f-1ff0-4483-8029-a0e67dcc434f nomodeset
module (md0)/boot/initrd.img-2.6.32-5-xen-amd64
}
(change md0 for your boot devic and get your uuid out of /etc/fstab), set
GRUB_DEFAULT="Xen 3.4 / Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64"
in /etc/default/grub, run update-grub and reboot. Finally a ps -e |
grep xen shows a bunch of xen processes!
Now to see how it actually performs...
On Thu, Jul 1, 2010 at 10:03 AM, Rippl, Steve
<rippls@xxxxxxxxxxxxxxxxxxx> wrote:
Hi,
We've been running Xen on Lenny for some time and it's worked great, but
with a new server and some older Xen kernel issues around acpi we're trying
the newer version on Squeeze.
So, I did a base install of Squeeze alpha 1, then apt-get install
xen-linux-system-2.6.32-5-xen-amd64 xen-tools. After adjusting the Grub 2
boot menu (installing the Xen kernel doesn't put it at the top of the boot
menu, so by default Grub booted into the 'trunk' kernel) the server rebooted
into the Xen kernel (uname -r gives 2.6.32-5-xen-amd64) and yet xend won't
start! Running xm create... I get "Error: Unable to connect to xend: No
such file or directory. Is xend running?". Trying to start via /etc/init.d
I get nothing!
I've seen the close bug report
(http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=580500) where someone
seems to have the same error as me, I also have "Booting paravirtualized
kernel on bare hardware" in kern.log, and Bastian says it's user error, but
doesn't explain how that's user error!?
Any insight is much appreciated!
Thanks,
Steve
--
Does the attached script help? It is an executable grub2 shell script.
-M
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- References:
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- From: Rippl, Steve
- Re: Xen on Squeeze won't start
- From: Rippl, Steve
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