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Re: [Xen-users] Black screen with 2.6.31 pv_ops

To: Christopher Schramm <xen@xxxxxxxxxxxx>
Subject: Re: [Xen-users] Black screen with 2.6.31 pv_ops
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Fri, 4 Dec 2009 11:32:02 +0200
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On Fri, Dec 04, 2009 at 09:51:59AM +0100, Christopher Schramm wrote:
> Pasi Kärkkäinen wrote:
> >On Thu, Dec 03, 2009 at 04:41:12PM +0100, Christopher Schramm wrote:
> >>multiboot /boot/xen.gz
> >>module      /boot/vmlinuz-
> >>root=UUID=64f4bee7-01c8-4db2-949e-1728524f35aa ro  quiet console=tty0
> >>module      /boot/initrd.img-
> >>
> >
> >You should have console=hvc0.
> >
> >See this wiki page for more information:
> >http://wiki.xensource.com/xenwiki/XenParavirtOps
> Unfortunately that didn't help. I've already had a look at that wiki
> page and looking at the "working example grub.conf" you see that there's
> no console param at all. tty0 was the result of my latest try to get
> it running.
> Also if the console is set up wrong, I would expect to keep getting the
> Xen output instead of nothing - shouldn't I?
> I also tried vga=ask and removing the quiet param - no change.
> Oh, and /var/log/xen remains empty, so I assume the dom0 does not boot.

Then you should enable/configure a serial console.. that's the best way
to debug issues like this.

Then you _can_ get the full output. There's an example about using
serial console on that wiki page.

-- Pasi

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