The blueprint "serial-ports" introduced a serial console connection to an instance via websocket. I'm wondering * why enabling the serial console *replaces* writing into log file [1]? * how one is supposed to retrieve the boot messages *before* one connects? The replacement of the log file has impact on the "os-console-output" API [2]. The CLI command `nova console-log <instance-name>` shows: "ERROR (ClientException): The server has either erred or is incapable of performing the requested operation. (HTTP 500)" Horizon shows in its "Log" tab of an instance "Unable to get log for instance <uuid>." Would it be good to have both, the serial console *and* the console log file? [1] https://review.openstack.org/#/c/113960/14/nova/virt/libvirt/driver.py,cm [2] http://developer.openstack.org/api-ref-compute-v2-ext.html#ext-os-console-output Regards, Markus Zoeller IRC: markus_z Launchpad: mzoeller