Xen Virtualization on Linux and Solaris

Setup Fedora 11 PV DomU at Xen 3.4.1 Dom0 (kernel 2.6.30-rc6-tip) on top of Fedora 11

The most impressive F11 features seems to be the nice Xen 3.4.1 build with python 2.6 coming as default with F11 and graphical installer behavior during pygrub based PV DomU installation phase. F11 is supposed to be installed without libvirt to avoid conflict during Xen 3.4.1 port to Fedora 11 instance. Proceed with building Xen 3.4.1 Dom0 on top of F11.


# yum install gitk dev86 vnc-server bridge-utils
# cd /usr/src
# hg clone http://xenbits.xensource.com/xen-3.4-testing.hg
# cd xen-3.4-testing.hg
# make xen
# make install-xen
# make tools
# make install-tools

Building pvops enabled kernel.

1.To checkout master branch:-


# git clone git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen
# cd linux-2.6-xen
# git checkout origin/xen-tip/master -b xen-tip/master

2.To checkout the most recent branch:-


# git clone git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen
# cd linux-2.6-xen
# git checkout origin/xen-tip/next -b xen-tip/next

To setup Xen Dom0 support run :-


# make menuconfig


# make
# make modules_install install

Create a grub entry:-


title Xen 3.4 / Fedora kernel 2.6.30-rc6-tip
kernel /boot/xen-3.4.gz
module /boot/vmlinuz-2.6.30-rc6-tip root=/dev/mapper/VolGroup01/vg_fedora11 ro console=tty0
module /boot/initrd-2.6.30-rc6-tip.img

Set initdefault to 3 in /etc/inittab and reboot in Xen environment,
having /etc/rc.local to start:-


export HOME=/root
vncserver :1 -geometry 1280x1024 -depth 16
/etc/init.d/xend start
/etc/init.d/xendomains start

Connect to Xen Host remotely via vncviewer

Bring up local Apache Server to create HTTP installation source.


# chkconfig httpd on
# service httpd start
# mount -o loop f11.iso /var/www/html/f11
# wget http://192.168.1.36/f11/images/pxeboot/vmlinuz
# wget http://192.168.1.36/f11/images/pxeboot/initrd.img

Create installation profile:-


name="F11PV"
memory=2048
disk = ['phy:/dev/sdc7,xvda,w' ]
vif = [ 'bridge=eth0' ]
vfb = [ 'type=vnc,vncunused=1']
kernel = "/home/boris/fedora/vmlinuz"
ramdisk = "/home/boris/fedora/initrd.img"
vcpus=2
on_reboot = 'restart'
on_crash = 'restart'


# xm create f11.install
# vncviewer localhost:0

This time graphical installer will be brought up with no issues (vs F10)

Load DomU via profile:-


name="F11PV"
memory=2048
disk = ['phy:/dev/sdc7,xvda,w' ]
vif = [ 'bridge=eth0' ]
vfb = [ 'type=vnc,vncunused=1']
bootloader = "/usr/bin/pygrub"
vcpus=2
on_reboot = 'restart'
on_crash = 'restart'


# xm create f11.pyrun
# vncviewer localhost:0