hi Mr Rich.
I did it :)
I can mount, modify the file system on the running guest and the guest update properly :)
Although I still failed to run the guestfsd daemon inside the guest machine but everything worked properly. I don`t understand why. Can you explain?
By the way, I used guestmount to mount the running guest.
Thanks :)


From: Richard W.M. Jones <rjones@redhat.com>
To: THO HUYNH <feeliwood@yahoo.com>
Cc: "libguestfs@redhat.com" <libguestfs@redhat.com>
Sent: Sunday, 4 March 2012, 17:09
Subject: Re: can`t start guestfsd daemon inside guest

On Sat, Mar 03, 2012 at 06:13:48PM -0800, THO HUYNH wrote:
> <channel type='unix'> <source mode='bind'path='/var/lib/libvirt/qemu/FedoraMini16.libguestfs' /> <target type='virtio'name='org.libguestfs.channel.0'/> </channel>  </devices>

> but whenever I restart the guest with virt-manager, the clause that
> I added was deleted.  could you help me please !!!

As you've pasted it above, the clause is wrong.  It is missing
spaces in important places (eg. mode='bind'path should be mode='bind' path)

Start with this simple example:

      <channel type='unix'>
        <source mode='bind' path='/tmp/socket'/>
        <target type='virtio' name='org.libguestfs.channel.0'/>
      </channel>

Make sure you copy it accurately.

Use 'virsh edit <Guest>' to edit the guest XML, and
'virsh domxml <Guest>' to check that the clause you tried to
add is present.

Rich.

--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
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