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[Xen-users] creating a DomU from tar

  • To: <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Sven Neukirchner" <s.neukirchner@xxxxxxxxx>
  • Date: Tue, 5 Apr 2011 09:07:03 +0200
  • Delivery-date: Tue, 05 Apr 2011 00:08:28 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AcvzX9oOT/Iz/hiWTfaikRBYnBZ+EQ==

I am new with XEN.

I have installed XEN 4 on Debian 6.0.
I am using LVM with XEN.
I created a new DomU with Debian 6.0

Now I am planning a backup solution.

So I made a lvm snapshot:
lvcreate --snapshot --name=samba-snapshot -L 10G

after I mounted the snapshot:
mkdir -p /mnt/samba-snapshot
mount /dev/XEN-Server/samba-snapshot /mnt/samba-snapshot

and made a tar archive:
tar -pczf /opt/backups/samba.tar.gz /mnt/samba-snapshot

So far so good.

Now my plan is using the tar archive to create a new DomU.
So I  changed the xen-tools.conf using tar instead of debootstrap:

install-method = tar
install-source = /opt/backups/samba.tar.gz
tar-cmd  = /bin/tar --numeric-owner -xzvf $sr

The hole xen-tools.conf can be found here:

Now I am trying to create a new DomU with this command:
xen-create-image --size=5Gb --memory=254Mb --hostname=VM-samba-restore

and get the following error:

General Information
Hostname       :  VM-samba-restore
Distribution   :  squeeze
Mirror         :  http://ftp.de.debian.org/debian/
Partitions     :  swap            256Mb (swap)
                  /               5Gb   (ext3)
Image type     :  full
Memory size    :  254Mb
Kernel path    :  /boot/vmlinuz-2.6.32-5-xen-686
Initrd path    :  /boot/initrd.img-2.6.32-5-xen-686

Networking Information
IP Address 1   : [MAC: 00:16:3E:2B:43:B7]
Netmask        :
Broadcast      :
Gateway        :

Creating swap on /dev/XEN-Server/VM-samba-restore-swap

Creating ext3 filesystem on /dev/XEN-Server/VM-samba-restore-disk
Installation method: tar
(Source: /opt/backups/samba.tar.gz)
System installation failed.  Aborting
/tmp/KxbTNiPltf/etc/ssh/ssh_host_rsa_key.pub: No such file or directory

Logfile produced at:
Removing swap volume
Removing LVM disk volume

The log file can be found here: http://pastebin.com/4WvsRhSy

I am thankfully for any help.

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