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RE: [Xen-users] How to see (XEN) messages?


  • To: "Derek" <xen@xxxxxxxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "Petersson, Mats" <Mats.Petersson@xxxxxxx>
  • Date: Tue, 22 Aug 2006 18:50:14 +0200
  • Delivery-date: Tue, 22 Aug 2006 09:51:22 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AcbGAACYjyUvkQ90QcGd1qkEiilH7wACoffQ
  • Thread-topic: [Xen-users] How to see (XEN) messages?

 

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Derek
> Sent: 22 August 2006 16:31
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] How to see (XEN) messages?
> 
> 
> 
> > If you're able to get a dom0 running you can use "xm dmesg" 
> (as root).
> 
> That did the trick.  Thanks.
> 
> Still, I think a "slow down" command-line parameter passed to 
> xen from the
> boot loader would be a great option to have.  Had I not been 
> able to boot
> dom0, I'd have been stuck, since my PC doesn't have a serial port.

In that particular scenario, you can use the "noreboot" option, and you
could also slow down the output by setting up a serial output to
"com1=300,n81 console=com1,vga sync_console"
 (even if you don't have a serial port on your machine, it will still
output to serial port, because your chipset _WILL_ have a serial port on
it - at least I'm not aware of any serial-port-free chipsets - you just
can't connect to it). Since the output goes to both serial and console,
it comes out pretty slowly on the serial port. That at least works for
the Xen part of things. 

And if you set Linux console to "console=/dev/ttyS0,/dev/console" (or
the corresponding) retaining the serial port at 300 bps, it should come
out slowly from Linux too... 

--
Mats
> -- 
> View this message in context: 
> http://www.nabble.com/How-to-see-%28XEN%29-messages--tf2143024
> .html#a5927906
> Sent from the Xen - User forum at Nabble.com.
> 
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
> 
> 
> 



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