This page is intended at giving guidelines on what needs to be defined in a Debian VM template file, to make sure it runs Debian fine (for instance booting an image prepared along the guidelines in OpenNebula/PreparingDebianVmImage).
The OpenNebula (3.2.x) reference documentation is at : http://opennebula.org/documentation:archives:rel3.2:template
Drive mappings : make sure to use UUID= definitions in /etc/fstab, as the mappings in the booted kernel don't seem to obey those set in DISK:TARGET settings in the VM template file.