Xen

Links

• http://xen.org Xen
• Beginners guide
• http://mediakey.dk/~cc/howto-install-windows-xp-vista-on-xen/
• http://www.planetjoel.com/viewarticle/568/HOWTO:+Windows+XP+running+under+Xen+3.0+on+Ubuntu+Dapper+Drake
• http://wiki.debian.org/Xen
• http://www.debian-administration.org/articles/533
• http://www.novell.com/communities/node/4094/xen-network-bridges-explained-with-troubleshooting-notes
• http://www.gnu.org/software/hurd/microkernel/mach/gnumach/ports/xen/networking_configuration.html

Docs

• Xen on Gentoo
• Xen wiki
• Xen on Debian Squeeze dom0

Xen clustering/HA

• Xen cluster howto
• http://lcmc.sourceforge.net/ Linux Cluster Management Console]
• HA Xen Cluster with DRBD, LVM and heartbeat
• http://www.drbd.org/users-guide/s-xen-heartbeat.html
• http://wiki.alteeve.com/index.php/Red_Hat_Cluster_Service_2_Tutorial

Hardware requirements

egrep '^flags.*pae' /proc/cpuinfo

Useful commands

xm dmesg
xen-create-image
xentop

FAQ

ERROR: Can't find hypervisor information in sysfs

Possible booting wrong kernel, otherwise try:

/etc/grub.d/20_linux_xen
update-grub
reboot

xl: unable to exec console client: No such file or directory

set "memory = 320" in the config file

Where did the memory of my dom0 go??

After killing a vm, xen keeps the memory reserved. If you really want to reclaim it, use:

xm mem-set 0 <the amount you want back>M

No network in windows

• http://wiki.xensource.com/xenwiki/XenNetworking

Domain does not exist

A vague way of telling you xm create failed to start?

Error: 'NoneType' object has no attribute 'rfind'

Debian thing, means install xen-qemu-dm-4.0