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Date: Thu, 12 Jun 2008 03:59:33 +0100
From: Thiemo Seufer <ths@networkno.de>
Subject: Re: [Qemu-devel] redirecting output from qemu window / busybox
	setup howto
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To: Peter Teoh <htmldeveloper@gmail.com>
Cc: qemu-devel@nongnu.org

Peter Teoh wrote:
> My kernel crashed currently under qemu, but i have no way to
> redirecting the output to a file or something like that.
> 
> The options available to output via serial/tcp/udp port is all very
> confusing here:
> 
> http://bellard.org/qemu/qemu-doc.html
> 
> I tried  "-serial tcp::4444,server", but after connecting using nc or
> telnet from another screen, the dmesg output from the startup is not
> redirected there, why?
> 
> my current command line is as follows:
> 
> qemu -hda debian.cow -m 384 -localtime -cdrom /dev/cdrom -kernel
> /boot/vmlinuz-2.6.26-rc5 -initrd /boot/initrd-2.6.26-rc5-1.img -append
> root="/dev/nfs nfsroot=10.10.1.157:/mnt/hd1/download/busybox/_install/
> rw ip=dhcp" -net nic,vlan=0 -net
> tap,vlan=0,ifname=tap0,script=./qemu-ifup

I figure you missed to -append "console=ttyS0".


Thiemo