Xen on Fedora 13

Alteeve Wiki :: How To :: Xen on Fedora 13

Warning: This is currently a dumping ground for notes. DO NOT FOLLOW THIS DOCUMENT'S INSTRUCTIONS. Seriously, it could blow up your computer or cause winter to come early.

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Building from Source

All of this is from here.

Install Requirements

Install:

yum -y groupinstall "Development Libraries"
yum -y groupinstall "Development Tools"
yum -y install transfig wget texi2html libaio-devel dev86 glibc-devel e2fsprogs-devel gitk mkinitrd iasl xz-devel bzip2-devel pciutils-libs pciutils-devel SDL-devel libX11-devel gtk2-devel bridge-utils PyXML qemu-common qemu-img mercurial
yum -y install glibc-devel.i686

Build from source

Note: These are the tools, not dom0.

From mercurial, stable tag.

Get version 4.0.0 (or newer, depending on what the latest stable is):

hg clone -r RELEASE-4.0.0 http://xenbits.xen.org/xen-4.0-testing.hg

Go into the directory and compile the tools:

cd xen-4.0-testing.hg
make xen
make tools
make stubdom

Install the tools (assuming compile worked):

make install-xen
make install-tools
make install-stubdom

Done.

dom0

From RPM

This uses a kernel built for Fedora 12, but it works on Fedora 13.

Add the repo:

cd /etc/yum.repos.d/
wget -c http://myoung.fedorapeople.org/dom0/myoung.dom0.repo

Edit the repo file and change the two enabled=0 entries to enabled=1.

Install the Xen dom0 kernel (edit the version number if needed).

yum install kernel-2.6.32.17-157.xendom0.fc12.x86_64

The entry in grub's /boot/grub/menu.lst won't work. You will need to edit it to look like this:

Note: Copy and modify the entry created by the RPM. Simply copying this entry will almost certainly not work!

title Xen 4.0, Linux kernel 2.6.32.17-157.xendom0.fc12.x86_64
	root   (hd0,0)
	kernel /xen-4.0.0.gz dom0_mem=1024M loglvl=all guest_loglvl=all
	module /vmlinuz-2.6.32.17-157.xendom0.fc12.x86_64 ro root=/dev/mapper/vg01-lv_root rd_LVM_LV=vg01/lv_root rd_LVM_LV=vg01/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
	module /initramfs-2.6.32.17-157.xendom0.fc12.x86_64.img
</span>

Add this to <span class="code">/etc/fstab</span>

<source lang="text">
xenfs                   /proc/xen               xenfs   defaults        0 0

Make cman and xend play nice

By default under Fedora 13, cman will start before xend. This is a problem because xend takes the network down as part of it's setup. This causes totem communication to fail which leads to fencing.

To avoid this, edit /etc/init.d/cman and tell it to start after xend by adding "xend" to Required-Start and Required-Stop boot facility lists.

When done, the cman LSB header should look like this:

vim /etc/init.d/cman

### BEGIN INIT INFO
# Provides:             cman
# Required-Start:       $network $time xend
# Required-Stop:        $network $time xend
# Default-Start:
# Default-Stop:
# Short-Description:    Starts and stops cman
# Description:          Starts and stops the Cluster Manager set of daemons
### END INIT INFO

Lastly, remove and re-add the cman daemon and add the xend daemon to the start list:

chkconfig cman off
chkconfig cman on
chkconfig xend on

Done. You should be able to reboot into the dom0 kernel now.

 

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