Dom0 Installation on Debian

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Revision as of 15:18, 20 August 2014 by Gilberto (talk | contribs)

Es:Instalación del Dominio0 en Debian

Back to: Xen on Debian

This parameters were made for the Xen installation on Linux Debian over Intel machines or AMD 64 bits.

1) Install the adecuate software to enable it

apt-get install xen-hypervisor-4.1-amd64 xen-tools xen-utils-4.1 xen-linux-system-amd64

Debian autoconfigurates grub in order to use the Xen hypervisor for booting the next time

2) Reboot the machine


3) Check if the machine has the dom0 kernel of Xen

uname -srm

You have to see somethimg like this

Linux 3.2.0-4-amd64 x86_64

Also, you can see if dom0 is running by running the following command:

xm list

And the output will be

       Name                                        ID   Mem VCPUs      State   Time(s)
       Domain-0                                     0  7926     8     r-----     20.0

4) Edit the /etc/xen/xend-config.sxp file and uncomment the follwing lines

File: /etc/xen/xend-config.sxp
        (network-script 'network-bridge netdev=eth0')
        (vif-script vif-bridge)

NOTE: Reboot the daemon before doing any change on this file

5) If you are using images on files, edit /etc/modules and change the "loop" module line in order to look like this

File: /etc/modules
        loop max_loop=64


1) Edit the /etc/xen-tools/xen-tools.conf file and put the configuration you like to. Example:

File: /etc/xen-tools/xen-tools.conf
        dir = /home/xen
        install-method = debootstrap
        size   = 4Gb      # Disk image size.
        memory = 1024Mb    # Memory size
        swap   = 1024Mb    # Swap size
        fs     = ext3     # use the EXT3 filesystem for the disk image.
        dist   = lenny     # Default distribution to install.
        image  = sparse   # Specify sparse vs. full disk images.
        kernel      = /boot/vmlinuz-`uname -r`
        initrd      = /boot/initrd.img-`uname -r`
        mirror =
        ext3_options   = noatime,nodiratime,errors=remount-ro
        gateway   =
        netmask   =
        broadcast =
        passwd = 1

2) Generate the image by using the following command.

xen-create-image --ip= --arch=amd64 --role=udev

NOTE: The last script does not take on count some details, is necessary to fix them

3) Edit the /etc/xen/vm1.cfg file and modify the following lines for looking like this

File: /etc/xen/
        root = '/dev/sda2 ro console=/dev/hvc0'
        vif  = [ 'bridge=eth0' ]

4) Mount the image

mount -o loop /home/xen/domains/ /mnt

5) Edit the file /mnt/etc/inittab and change the line

File: /mnt/etc/inittab
        1:2345:respawn:/sbin/getty 38400 tty1

And make it to look like this

File: /mnt/etc/inittab
        1:2345:respawn:/sbin/getty 38400 hvc0

6) Edit the /mnt/etc/securetty file and add to the end of the line

File: /mnt/etc/securetty

7) For booting the virtual machine run the following command:

xm create -c /etc/xen/