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Re: [Xen-users] xm console gives no output

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] xm console gives no output
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Fri, 5 Oct 2007 02:50:46 +0100
Cc: matt <matthewh@xxxxxxxxxxxxx>
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Is this an HVM guest or a PV guest?

If it's HVM, xm console displays the serial line output; unless you configure 
the guest to have a terminal on COM1 you won't get any useful output.

It's fairly simple, edit /etc/inittab to spawn a getty on /dev/ttyS1, possibly 
edit /etc/securetty or /etc/securettys to allow root login.  There's probably 
a more detailed writeup somewhere in the mailing lists / on the web / in the 
manual, but that's the bare bones of the procedure.


On Thursday 04 October 2007, matt wrote:
> Hi List,
> Wondering if anyone can shed some light.
> Running xm console <id> does nothing for me, sometimes I get 'AT' or
> 'ATI9' but nothing else. The vm is functioning, is doesn't crash, and
> VNC works fine. Virt-manager will bring up a console just fine, but
> from how this will get run, that won't be nice.
> I ran it under strace, and it led me to believe it has something to do
> with xenstore but not sure.
> I am using a standard CentOS 5 Xen, but today I upgraded to 3.0.3-25,
> but still the same problem.
> Any help is greatly appreciated.
> Matt
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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