Howto

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A) Ubuntu 6.10 (Edgy Eft) standard installation

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1. Preliminary work in BIOS

• > Check your BIOS version (A30)
• > Enable VT support in BIOS setting
• > Make sure the second network interface (eth1) is enabled.

2. Boot from the Ubuntu 6.10-desktop DVD-Rom. In the first screen that you will be
presented with, select 'Start or install Ubuntu'. As the LiveCD loads, double-click
the 'Install' icon on the desktop.

3. Choose your language, location, time zone, keyboard layout, etc.

4. Create your own username/password. (Remember it!)

5. Select 'Manually edit partition table' to create customized partitions:
#

* sda1 - swap - 1GB

* sda2 - / - the rest space (Bootable flag on)
#

NOTE: We use the first disk (sda) for the installation of Ubuntu/Xen/VMs, you can
play with the sdb later.

6. Start to install... have a cup of coffee.

7. After copying files completed, reboot.

The basic Ubuntu installation is done!

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B) Xen installation

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NOTE: In Ubuntu 6.10 (Edgy Eft), there is no need to build and compile Xen from
source. this is no longer necessary. You can easily convert the existing running
Ubuntu Edgy install so that the Dom0 is your current setup.

1. Login to the Ubuntu machine you installed. Switch to root if you don't want
to type 'sudo' at the beginning of every command later.

2. Enable universe in /etc/apt/sources.list

3. Update the system and install nessecary packages. Run the following commands in a Terminal:

NOTE: This will install the XEN hypervisor, the kernel used by the guest host
and guest domains, and the userspace utilities used for working with Xen domains.

4. Create an initrd image:


5. Setup grub. Add the following lines to /boot/grub/menu.lst :


NOTE: The root path is based on the partition we created during the Ubuntu install.
In this case, it is sda2.

NOTE: Make sure the Xen kernel is the default boot one. Otherwise you need select
from the boot menu every time.

6. Reboot. When the system is back up try the following command to verify
that everything is ok:




The installation of Xen Dom0 is done!

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C) Xen working environment configuration

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1. Setup SSH server for remote access


2. Setup DHCP server
INTERFACES="eth2"




3. Setup DNS server


4. Enable IP forwarding.

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D) DomU installation

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1. Install the Hardware Virtual Machine: Windows XP



NOTE: 4096 is the number of megabytes so mine is 4 gigs, pick an appropriate size for your needs.

1.4 Boot from iso file and install XP

xm create winxp.hvm

1.5 After the installation is completed, change [boot='c'] in /etc/xen/winxp.hvm to
boot from img file.

2. Install HVM with other OSs

Only make several changes in the config file with other names and disk booting ISOs.
The rest steps are similar as installing Windows.

3. Non-HVM guest using the same kernel image that was used for dom0

3.1 use loopback-mounted-file
3.2 use raw partition

See https://help.ubuntu.com/community/XenVirtualMachine/XenOnUbuntuEdgy∞ for detail.

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E) Network configuration

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1. To adjust the network settings that XEN will use, you need to modify the file
/etc/xen/xend-config.sxp in which the xend daemon is configured.


2. Create xenbr0, xenbr1, xenbr2 , in /etc/xen/scripts/INR-start

#!/bin/sh
/etc/xen/scripts/network-bridge start vifnum=0 bridge=xenbr0 netdev=eth0 $*
/etc/xen/scripts/network-bridge start vifnum=1 bridge=xenbr1 netdev=eth1 $*
/etc/xen/scripts/network-bridge-eth2 start vifnum=2 bridge=xenbr2 netdev=eth2 $*

3. Edit /etc/xen/scripts/network-bridge-eth2 to rename the veth2 to eth2, assign a /29 IP

address to eth2. For example:

# add $vdev interface here
# todo: other IP address fill in
create_bridge ${bridge} mac="00:16:3E:06:01:01"

if link_exists "$vdev"; then

ip link set ${vdev} name ${netdev}

setup_bridge_port ${vif0}
ip link set ${netdev} addr ${mac} arp on
ip link set ${bridge} up
add_to_bridge ${bridge} ${vif0}

ifconfig ${netdev} 145.92.25.81 netmask 255.255.255.248 up
ip link set dev ${netdev} up

else

# old style without ${vdev}
transfer_addrs ${netdev} ${bridge}
transfer_routes ${netdev} ${bridge}

fi

4. To stop/delete the virtual interface, use the similar commands. (See script for details).

5. restart the Xen daemon

xend restart

6. Browse the bridge status, run command:

brctl show

If everything goes well, you should see like this:

bridge namebridge id STP enabled interfaces
xenbr0 8000.feffffffffff no peth0

vif0.0

xenbr1 8000.feffffffffff no peth1

vif0.1

xenbr2 8000.5a5edb8079f8 no vif0.2

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F) VNC on Dom0/DomU

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1. For Ubuntu 6.10 on Dom0, select in menu
System -> Preference -> Remote Desktop

to activate the remote desktop access.

2. For Windows on DomU, install some VNC server software. e.g. TightVNC to

enable the remote control.

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Reference:

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- https://help.ubuntu.com/community/∞
- http://www.debian-administration.org/∞
- http://www.xensource.com/xen/xen/∞
- http://www.howtoforge.com/∞
- http://www.digg.com/linux_unix/∞