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RE: [Xen-devel] dom0 won't boot

To: "Barry Rountree" <rountree@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] dom0 won't boot
From: "Neugebauer, Rolf" <rolf.neugebauer@xxxxxxxxx>
Date: Fri, 30 Jul 2004 08:31:21 +0100
Cc: "Neugebauer, Rolf" <rolf.neugebauer@xxxxxxxxx>
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Thread-topic: [Xen-devel] dom0 won't boot
> > All of that output is from grub, you're not seeing anything from
> > Xen.
> >
> > Try "com1=115200,8n1" and make sure that you've got the baudrate
> > at the other end set correctly (I thought grub defaulted to 9600?)
> 
> It's set correctly -- I had never done this before, so there was a bit
of
> a
> learning curve.  I practiced on the smp kernel that I usually boot
into
> and
> when I was able to capture everything in minicom there I switched over
to
> xen.  If I had gotten no output at all, it would have been suspicious.
> However, I did get output, no characters were garbled, no sentences
cut in
> half, etc.
> 
> For whatever it's worth, here's the entry in grub:
> 
> title Xen-Serial
> serial --unit=0 --speed=9600 --word=8 --parity=no --stop=1
> terminal serial
> kernel (hd0,4)/boot/xen.gz dom0_mem=131072 com1=115200 noht noreboot
> module (hd0,4)/boot/vmlinuz-2.4.26-xen0 root=/dev/sda5 ro
console=ttyS0

Your grub and xen serial speed settings are different. Try setting them
to the same value which also has to match your terminal program setting.
Presumably you want 'com1=9600,8n1' on the kernel line

rolf

> But still, a good point.
> 
> Barry
> >
> > Ian
> 
> 
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