[Xen-users] enable serial port for HVM guest

["Zhi Wang" <xenlando@xxxxxxxxx>]

I have a xen 3.3.0 installed from source code. Dom0 is based on CentOS 5.2.

I did the following to enable the serial port in a ubuntu HVM guest. 

1. start xencosoled as root 

2. enable serial='pty' in the configure file

3. enable output to serial in the guest by adding console=ttyS0 to the grub

Then I started the guest with xm create -c usrv. The vnc display is OK. but there

is no output in the serial. I also tried several combination of serial='', such as

serial='/dev/ttyS0', serial='/dev/ptya1'... None of them works.

Thanks

This is the configure file:

#----------------------------------------------------------------------

import os, re

arch = os.uname()[4]

if re.search('64', arch):

    arch_libdir = 'lib64'

else:

    arch_libdir = 'lib'

kernel = "/usr/lib/xen/boot/hvmloader"

builder='hvm'

memory = 256 

name = "usrv"

vif = [ 'mac=00:16:3e:00:00:10, bridge=eth0' ]

disk = [ 'phy:/dev/vg_guest/lv_userver,hda,w' ]

device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'

boot="cda"

sdl=0

opengl=0

vnc=1

vncviewer=1

vncpasswd=''

stdvga=0

serial='pty'

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