RedHat Virtualization Guide

I've read the RedHat Virtualization Guide. Get's you going but contains lots or redundant sections: point 1.x will be exactly the same as point 1.x+y (it's as if it was moved via a copy/paste not a cut/paste). I found the following useful so this post will contain my bookmarks:

• yum install xen kernel-xen libvirt libvirt-python libvirt-python python-virtinst
• CLI virt-install of guest (can accept kickstart URL)
• Paravirtualized guests need a xen kernel too so during installation of a guest, select Customize Now and install the kernel-xen package in the System directory (I don't see this option on a new install on metal). If possible, kickstart files for guests should specify this kernel. If you try to boot from a non-xen kernel try this. Update: the menus during the text install did not offer this option. Fortunately the following CLI install method worked well for me and I got a xen kernel without having to select anything related to a Xen Kernel during the install:

  virt-install \
  --paravirt \
  --file=/var/lib/xen/images/webhost0.img  \
  --name webhost0 \
  --vcpus=2 \
  --ram 512 \
  --file-size=4 \
  --check-cpu \
  --nographics \
  --location=http://astromirror.uchicago.edu/fedora/linux/releases/10/Fedora/x86_64/os/
  

  A local http mirror containing a RHEL DVD mounted in /var/www/html worked well for the --location option for RedHat. Otherwise the Fedora example above should work too.
• Adding Storage
• Xen bridging (bridging overview)
• Live migration
• Remote management with Virtual Machine Manager: I wouldn't install GTK on a VM server but I might on a workstation for remote control.
• Tips and Tricks
• Troubleshooting
Commands to know:
• virsh: create, pause, and shutdown guests
• xm: has things virsh might not
• virt-install: install VMs
• virt-clone: clone VMs
• brctl
• others