How to Install a FreeBSD domU on a Linux Host
The FreeBSD wiki describes the current state of the FreeBSD xen port(s).
FreeBSD will run in 3 configurations:
- 32-bit PV (kernel "XEN"; requires "PAE" option)
- 64-bit HVM with PV drivers (kernel "XENHVM")
- 32- or 64-bit HVM without PV drivers (kernel "GENERIC")
For instructions on building user-space xenstore tools, see HOWTO-xen-tools.txt.
For instructions on building and installing a "XENHVM" kernel on XCP, see this blog post.
FreeBSD 7.2 domU on a linux dom0
It is fairly straightforward to create a FreeBSD DOMU virtual machine inside a linux DOM0.
Here's a sample configuration file. This is set to boot an ISO image file of freebsd7.2, which the author happened to need in order to create a development environment for pfSense firewall.
import os, re arch = os.uname() if re.search('64', arch): arch_libdir = 'lib64' else: arch_libdir = 'lib' kernel = "/usr/lib/xen-4.0/boot/hvmloader" builder = 'hvm' memory = 768 vcpus = 1 name = "xenfreebsd" vif = [ 'type=ioemu, bridge=eth0' ] acpi = 1 apic = 1 disk = [ 'phy:/dev/xen/xen4-freebsd72-00,hda,w', 'file:/home/download/freebsd-7.2-RELEASE-i386-dvd1.iso,hdc:cdrom,r' ] device_model = '/usr/' + arch_libdir + '/xen-4.0/bin/qemu-dm' usbdevice='tablet' # boot on floppy (a), hard disk (c) or CD-ROM (d) boot='d' # use vnc for console not sdl, don't start vnc console vnc=1 sdl=0 vncconsole=0 on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'restart'
The main change required will be to fix the paths to the CD or DVD iso.
Once started with xm create, use "vncviewer localhost:0" to attach to the installer and complete the process.
It may be necessary to use ssh forwarding if the xen server isn't your local machine; e.g. "ssh -L5900:127.0.0.1:myxenhost.example.com" and then "vncviewer localhost:0".
The information below is quite out of date and has been kept for reference purposes only. Most of the links are also broken!