Get your stoney cloud image:
<source lang='bash'>
version=1.2.10.5 6 # stoney cloud version
cd /var/virtualization/iso-choosable/
chown apache:vm-storage lernstick_debian7_2013-12-12.iso
chmod 644 lernstick_debian7_2013-12-12.iso
</source>
Get your debian image:
<source lang='bash'>
version=7.4.0 # debian version
cd /var/virtualization/iso-choosable/
wget http://cdimage.debian.org/debian-cd/${version}/amd64/iso-cd/debian-${version}-amd64-netinst.iso
chown apache:vm-storage debian-${version}-amd64-netinst.iso
chmod 644 debian-${version}-amd64-netinst.iso
</source>