Handling virtual machines
From Klaus' wiki
Cloning
Use the virt-clone to make a copy of a already installed virtual machine
$ virt-clone -o <original-name> -n <new-name> -f /path/virt-machine-file
Start a virtual machine
To start and get the console use the following
$ xm create /etc/xen/<virt-machine-name> $ xm console <virt-machine-name>
Hint: Use Crtl+] (ctrl+AltGr+]) to get out of a console.
Resize a LVM based Disk
Follow the instructions given here and there to resize a virtual machines disk if it uses LVM, which most in the Red Hat family does.