[Xen-devel] Cannot Start Linux Paravirtualized (PV) Guests with Xen 4.2-unstable

["Teo En Ming (Zhang Enming)" <singapore.mr.teo.en.ming@xxxxxxxxx>]

Hi,

I cannot start Linux PV guests. "sudo xl create -c" reports that a domain has successfully started but "ps -ef | grep qemu" returns no output and "sudo xl list" doesn't show that the PV domain has started.

Please review the following installation steps which I have written and see if there are any mistakes.

XL Domain Configuration File for Fedora 16 x86_64 PV domU (Incomplete Configuration, Not Tested, Do Not Use)

You will need to install apache2 and create a local http mirror.

sudo apt-get install apache2

cd /media

sudo mkdir fedora

cd ~/Downloads

sudo mount -o loop Fedora-16-x86_64-DVD.iso /media/fedora

cd

mkdir -p vms/f16

cd /media/fedora/images/pxeboot

cp vmlinuz initrd.img ~/vms/f16/

sudo nano /etc/xen/Fedora16x86_64

# Kernel image to boot

kernel = "/home/teo-en-ming/vms/f16/vmlinuz"

# Ramdisk (optional)

ramdisk = "/home/teo-en-ming/vms/f16/initrd.img"

#bootloader="/usr/bin/pygrub"

cd /etc/xen/images/

sudo dd if=/dev/zero of=fedora16x86_64.img bs=1024k seek=10000 count=0

To install Fedora 16 x86_64 as a paravirtualized guest domain,

sudo xl create -c Fedora16x86_64

After installing Fedora 16 x86_64 PV domU,

sudo nano /etc/xen/Fedora16x86_64

# Kernel image to boot

#kernel = "/home/teo-en-ming/vms/f16/vmlinuz"

# Ramdisk (optional)

#ramdisk = "/home/teo-en-ming/vms/f16/initrd.img"

bootloader="/usr/bin/pygrub"

# XL domain configuration file for Fedora 16 x86_64 PV domU

# Please refer to "man xl.cfg" for further explanations.

# See also docs/misc/xl-network-configuration.markdown and

# docs/misc/xl-disk-configuration.txt

# Written by Teo En Ming (Zhang Enming)

# Email: teo.en.ming@xxxxxxxxx

# Mobile Phone: +65-8369-2618

# Country: Singapore

# Date: 18 Mar 2012 Sun

name="Fedora16x86_64"

builder="generic"

vcpus=2

memory=1024

disk=[ 'format=raw, vdev=hda, access=rw, target=/etc/xen/images/fedora16x86_64.img' ]

vif=[ 'bridge=virbr0' ]

vfb=[ 'vnc=1,vnclisten=localhost,vncdisplay=2,vncunused=1,vncpasswd=,sdl=0' ]

gfx_passthru=0

# Step 1

# To install Fedora 16 x86_64 PV domU, configure the kernel, ramdisk, and extra keys below and comment out bootloader.

# Kernel image to boot

kernel = "/home/teo-en-ming/vms/f16/vmlinuz"

# Ramdisk (optional)

ramdisk = "/home/teo-en-ming/vms/f16/initrd.img"

# Kernel command line options

#extra = "root=/dev/xvda1"

# Step 2

# To boot the already installed Fedora 16 x86_64 PV domU, comment out the keys in Step 1 and uncomment bootloader below.

#bootloader="/usr/bin/pygrub"

Please advise.

Thank you very much.

Yours sincerely,

Teo En Ming (Zhang Enming)

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