[openstack-dev] [nova] serial-console *replaces* console-log file?

Markus Zoeller mzoeller at de.ibm.com
Mon Jan 12 09:03:00 UTC 2015

> On Fri, Jan 09, 2015 at 09:15:39AM +0800, Lingxian Kong wrote:
>There is an excellent post describing this, for your information: 

In the last section of that article he describes my issue as well:
   "It would be nice to have both mechanisms available 
   -- serial console support for interactive access, **and** 
   console logs for retroactive debugging."

> Good reference, you can also get some information here:
> https://review.openstack.org/#/c/132269/
> 2015-01-07 22:38 GMT+08:00 Markus Zoeller <mzoe... at de.ibm.com>:
> > 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 
> > * how one is supposed to retrieve the boot messages *before* one 
> The good point of using serial console is that you can create with a 
> few lines of python an interactive console to debug your virtual 
> machine.
> s. 

I really like the feature of the serial console and I don't doubt its
usefulness. I'm worried about *not* persisting the OS messages into 
a file when I activate the "serial console" feature. Why not having both?

Markus Zoeller
IRC: markus_z
Launchpad: mzoeller

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