Open nebula debian package (OpenNebula 3.1.80), calls mkisofs instead of genisoimage. It seems it was solved in OpenNebula 2. Should config be modified to do so? Thanks Olivier -- gpg key id: 4096R/326D8438 (pgp.mit.edu) Key fingerprint = 5FB4 6F83 D3B9 5204 6335 D26D 78DC 68DB 326D 8438