virsh destroys serial console config on hardy?

Howdy!

      I am setting up server guests on hardy using KVM/libvirt
and every thing works fine, except when I try to configure
serial consoles on virtual machines


according to

 http://libvirt.org/formatdomain.html#elementsCharPTY

A Pseudo TTY is allocated using /dev/ptmx. A suitable client such as 'virsh console' can connect to interact with the serial port locally. 

<serial type="pty">
       
<source path="/dev/pts/3"/>
       
<target port="1"/>
     
</serial>
<console type="pty">
      <source path="/dev/pts/3"/>
   
    <target port="1"/>
     
</console>

   when I add the above to the
<devices> section
of a valid working xml file and
do

virsh define virt1.xml

It returns
an aknowledgment that the domain
has been defined but
the above additions have been
removed as shown by
'virsh dumpxml virt1' and
a listing of the file. There
are no errors listed. 

virsh console virt1 

returns

No console available for
domain


  What is the correct way to setup
serial
consoles for kmv/virsh on hardy? Or is this
not
supported yet or a bug?  

thanx
-steve


Below is the original virt1.xml
config

<domain type='kvm'>
 
<name>virt1</name>
 
<memory>2048000</memory>
 
<currentMemory>2048000</currentMemory>
 
<vcpu>4</vcpu>
  <os>
   
<type>hvm</type>
    <boot
dev='hd'/>
  </os>
  <clock
offset='utc'/>
 
<on_poweroff>destroy</on_poweroff>
 
<on_reboot>restart</on_reboot>
 
<on_crash>destroy</on_crash>
 
<devices>
   
<emulator>/usr/bin/kvm</emulator>
   
<disk type='block' device='disk'>
     
<source dev='/dev/vm/base_virt1'/>
     
<target dev='hda' bus='scsi'/>
   
</disk>
    <disk type='block'
device='disk'>
      <source
dev='/dev/vm/data0_virt1'/>
      <target
dev='hdb' bus='scsi'/>
    </disk>
   
<serial type='pty'>
      <source
path='/dev/pts/3'/>
      <target
port='1'/>
    </serial>
    <console
type='pty'>
      <source
path='/dev/pts/3'/>
      <target
port='1'/>
    </console>
 
</devices>
</domain>

ps - I also
tried the above with /dev/ptmx, still
fails

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