Xen clone vm can't be created

Question

I'm working with Xen 4.0 on a debian Lenny (5.0) . I wanted to clone a VM , but it seems that i didn't do it well . What i did is the following :

Creating the config file of the new VM and setting it up.

#cd /etc/xen/vms/
#cp original.foo.com.cfg copy.foo.com.cfg

Copying virtual disks

#cd /dev/mapper/
#cp -rv vg--xen-original.foo.com--disk vg--xen-copy.foo.com--disk
#cp -rv vg--xen-original.foo.com--swap vg--xen-copy.foo.com--swap

#chmod g+w vg--xen-copy.foo.com--*
#chown root:disk vg--xen-copy.foo.com--*

Symlinks

#cd /dev/vg-xen/
#ln -s ../mapper/vg--xen-copy.foo.com--disk copy.foo.com-disk
#ln -s ../mapper/vg--xen-copy.foo.com--disk copy.foo.com-disk

Everything is set up, let's create the VM

#xm create /ect/xen/vms/copy.foo.com.cfg
#Using config file "./copy.foo.com.cfg".
#Error: Device 51714 (vbd) could not be connected.
#Device /dev/mapper/vg--copy.foo.com--disk is mounted in a guest domain,
#and so cannot be mounted now.

Could you please help me sort out that issue ?

All i wanted was to duplicate original.foo.com

Thanks

if you found the solution, post it (creating an "Answer" to your question). [so] is a ressource to learn from question/answers of others, not your private help-line. — umläute, Jul 16 '13 at 12:30

score 0 · Accepted Answer · answered Jul 16 '13 at 16:47

I found the solution.

  #lvcreate -L size -n VM_NAME-disk xen-data
  #lvcreate -L size -n VM_NAME-swap xen-data

Then a byte by byte copy

  #dd if=/dev/mapper/vg-xen-original.foo.com--disk of=/dev/mapper-vg-xen-copy.foo.com--disk
  #dd if=/dev/mapper/vg-xen-original.foo.com--swap of=/dev/mapper-vg-xen-copy.foo.com--swap

Et Voià !!!

Xen clone vm can't be created

1 Answers1