View source for Dom0 Installation on Debian

[[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

{{Command|<nowiki> apt-get install xen-hypervisor-4.1-amd64 xen-tools xen-utils-4.1 xen-linux-system-amd64 </nowiki>}}

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

2) Reboot the machine

{{Command|<nowiki> reboot </nowiki>}}

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

{{Command|<nowiki> uname -srm </nowiki>}}

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:

{{Command|<nowiki> xm list </nowiki>}}

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|<pre><nowiki>
        (network-script 'network-bridge netdev=eth0')
        (vif-script vif-bridge)
</nowiki></pre>}}

{{Note|<pre><nowiki> Reboot the daemon before doing any change on this file </nowiki></pre>}}

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|<pre><nowiki>
        loop max_loop=64
</nowiki></pre>}}

CREATING IMAGES

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|<pre><nowiki>
        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 = http://ftp.us.debian.org/debian/
        ext3_options   = noatime,nodiratime,errors=remount-ro
        gateway   = 192.168.100.1
        netmask   = 255.255.255.0
        broadcast = 192.168.100.255
        passwd = 1
</nowiki></pre>}}

2) Generate the image by using the following command.

{{Command|<nowiki> xen-create-image --hostname=vm1.ve   --ip=192.168.100.80 --arch=amd64 --role=udev </nowiki>}}

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/vm1.ve.cfg|<pre><nowiki>
        root = '/dev/sda2 ro console=/dev/hvc0'
        vif  = [ 'bridge=eth0' ]
</nowiki></pre>}}

4) Mount the image

{{Command|<nowiki> mount -o loop /home/xen/domains/vm1.ve/disk.img /mnt </nowiki>}}

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

{{File|/mnt/etc/inittab|<pre><nowiki>
        1:2345:respawn:/sbin/getty 38400 tty1
</nowiki></pre>}}

And make it to look like this

{{File|/mnt/etc/inittab|<pre><nowiki>
        1:2345:respawn:/sbin/getty 38400 hvc0
</nowiki></pre>}}

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

{{File|/mnt/etc/securetty|<pre><nowiki>
        hvc0
</nowiki></pre>}}

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

{{Command|<nowiki> xm create -c /etc/xen/vm1.platino.gov.ve.cfg </nowiki>}}


[[Category:Virtualization]]