[ovirt-users] Hosted Engine won't start, how to debug?

Dear oVirt Team, after trying to reboot a hosted engine setup on oVirt 4.2 the VM won't come up anymore. The qemu-kvm process is there but we're unable to access the VM using - the serial console (simply does not show anything, does not react to characters typed) - VNC / Spice because the hosted engine vm.conf does not contain any graphics device. Before trying to reinstall, we'd like to recover and debug what is going on. We mounted a Centos7 install .iso and started the VM using hosted-engine --vm-start --vm-conf=/var/run/ovirt-hosted-engine-ha/vm-custom.conf But we still have to problem, that the serial console does not show anything and there is no way to connect using VNC. So, what is the recommended way to move forward in such situation? IMHO the classical way would be to add a graphics device and connect via VNC? I did not use the serial console much, up to now. Should the serial console show any output during boot? Thanks for your help,  Thomas -- ________________________________________________________________________ Dipl.-Inform. Thomas Klute klute(a)ingenit.com Geschäftsführer / CEO ---------------------------------------------------------------------- ingenit GmbH & Co. KG Tel. +49 (0)231 58 698-120 Emil-Figge-Strasse 76-80 Fax. +49 (0)231 58 698-121 D-44227 Dortmund www.ingenit.com Registergericht: Amtsgericht Dortmund, HRA 13 914 Gesellschafter : Thomas Klute, Marc-Christian Schröer ________________________________________________________________________