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Re: [Xen-users] XEN boot messages not visible on console

from [Pasi Kärkkäinen]

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To:	Krist van Besien <krist.vanbesien@xxxxxxxxx>
Subject:	Re: [Xen-users] XEN boot messages not visible on console
From:	Pasi Kärkkäinen <pasik@xxxxxx>
Date:	Sat, 22 May 2010 18:58:30 +0300
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On Sat, May 22, 2010 at 03:51:05PM +0200, Krist van Besien wrote:
> Hello,
> 
> I'm not seeing any XEN boot messages at all. Xen boots OK, and
> afterwards I do get the DOM0 boot messages. I can also see the
> messages using xm dmesg.
> root@thunersee:~/work/xen/src/xen-4.0.0# xm dmesg
> (XEN) Bad console= option 'com3'
>  __  __            _  _    ___   ___
>  \ \/ /___ _ __   | || |  / _ \ / _ \
>   \  // _ \ '_ \  | || |_| | | | | | |
>   /  \  __/ | | | |__   _| |_| | |_| |
>  /_/\_\___|_| |_|    |_|(_)___(_)___/
> 
> (XEN) Xen version 4.0.0 (krist@xxxxxxxxx) (gcc version 4.4.3 (Ubuntu
> 4.4.3-4ubuntu5) ) Sat May 22 13:07:02 CEST 2010
> (XEN) Latest ChangeSet: unavailable
> (XEN) Command line: dom0_mem=1024M console=com3 com3=115200,8n1
> 
> As you see xen complains about hte console. However, according to the
> info I found here:
> http://wiki.xensource.com/xenwiki/XenHypervisorBootOptions
> Or should I interpret "Xen supports up to two 16550-compatible serial
> ports" as meaning "XEN only supports com1 and com2"?
> 
> Com3 is the port that I can see using the SOL funtion of the IPMI
> build in to the server.
> 

So then use com1 or com2.
You can specify the correct IOport/IRQ parameters for them to get it working.

See: http://wiki.xensource.com/xenwiki/XenSerialConsole

-- Pasi


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