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Re: [Xen-devel] pvops Domain 0 Creased when boot Xen-unstable on Ubuntu1

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] pvops Domain 0 Creased when boot Xen-unstable on Ubuntu10.04
From: Bei Guan <gbtju85@xxxxxxxxx>
Date: Tue, 17 May 2011 22:39:11 +0800
Cc: Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Andrei Warkentin <andreiw@xxxxxxxxxxxx>
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I did the following steps for PVOps dom 0 kernel ( on Ubuntu10.04 x64. And debug of Dom0 is attached.

make menuconfig
make bzImage
make modules
make modules_install
cp -a .config /boot/config-
cp -a System.map /boot/System.map-
cp -a arch/x86/boot/bzImage /boot/vmlinuz-
update-initramfs -c -k

My xen entry in grub.cfg is as the following.

menuentry "Ubuntu_Xen 4.2 (" {
insmod ext2
set root='(hd0,9)'
search --no-floppy --fs-uuid --set 59c64afa-47a8-4a5f-a4cf-dbe3be20cc15
        multiboot /boot/xen.gz dom0_mem=1024M loglvl=all guest_loglvl=all sync_console console_to_ring com1=115200,8n1 console=com1 lapic=debug apic_verbosity=debug apic=debug iommu=off
module /boot/vmlinuz- nopat root=UUID=59c64afa-47a8-4a5f-a4cf-dbe3be20cc15 ro console=tty0 console=ttyS0,115200n8 console=hvc0 earlyprintk=xen nomodeset initcall_debug debug loglevel=10
module /boot/initrd.img-

In the debug, there is message like this:

Loading, please wait... 
mount: mounting none on /dev failed: No such device 

So, is there any error in the grub entry? What other log can I provide?

Bei Guan

2011/5/17 Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
On Tue, May 17, 2011 at 01:42:15AM +0800, Bei Guan wrote:
> Hi All,
> I try to install Xen-4.2-unstable with pvops dom0 kernel( on

So from Jeremy's git tree? 
> Ubuntu10.04. But the kernel panic when I reboot. The message got with the
> serial debugging is as the following. And the config file of dom0 kernel is

Take a look at the PVOPS wiki and follow the troubleshooting section. It will
explain to you how to ratchet up the debug/logging of Dom0.
> also attached. Can anyone give me some advice?
> And what's the problem with my installation?

No idea without more Linux kernel data.

Attachment: boot_debug.txt
Description: Text document

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