The Big Damn KVM cheatsheet

Contents 1 Commands you should know 1.1 virsh 2 Paths you cant live without 3 Few points 3.1 Migrating from vmware server 1.x (and maybe 2.0 but it sucked so bad I cant say for sure) 3.2 Links

Commands you should know

• virt-manager (GUI manager) read here on how to forward to Xserver on remote system
• qemu-img
• /usr/libexec/qemu-kvm

• /usr/libexec/qemu-kvm -cpu ?dump - Shows list of CPUs and their features
• /usr/libexec/qemu-kvm -cpu \? - Shows basic CPU list

• virt-what - tells you more about your virtual enviroment (usually just kvm is returned in a kvm environment)

virsh

• define /etc/libvirt/qemu/ns03.80sretro.com.xml

Paths you cant live without

• /var/lib/libvirt
• /etc/libvirt/

• qemu - your xml (and other cool files) live here.

Few points

Migrating from vmware server 1.x (and maybe 2.0 but it sucked so bad I cant say for sure)

• 32bit hosts start with the wonderfully powerful PII based 32bit proc. To change you need to remove "-cpu qemu32"

Links

• http://berrange.com/posts/2010/02/15/guest-cpu-model-configuration-in-libvirt-with-qemukvm/
• http://rwmj.wordpress.com/2010/10/08/32-or-64-bit-virtual-cpu-in-kvm/
• http://fedoraproject.org/wiki/Virtualization_Quick_Start
• https://help.ubuntu.com/community/KVM/Virsh