[Lxc-users] Regarding lxc tools and libvirt (virsh).

Daniel Lezcano dlezcano at fr.ibm.com
Fri Feb 5 10:16:50 UTC 2010


Kumar L Srikanth-B22348 wrote:
> Thanks for the reply Daniel.
> I have another issue.
> I am creating a Domain using libvirt XML. In order to mount the host's
> '/home/srikanth' directory to the new container's '/' directory, my XML
> format is shown below:
> 
> <domain type='lxc' id='1'>
>   <name>container1_vm</name>
>     <memory>500000</memory>
>       <os>
>           <type>exe</type>
>           <init>/bin/sh</init>
>       </os>
>       <vcpu>1</vcpu>
>       <clock offset='utc'/>
>       <on_poweroff>destroy</on_poweroff>
>       <on_reboot>restart</on_reboot>
>       <on_crash>destroy</on_crash>
>       <devices>
>         <emulator>/usr/libexec/libvirt_lxc</emulator>
>   	<filesystem type='mount'>
> 	  <source dir='/home/srikanth'/> 
> 	  <target dir='/'/> 
> 	</filesystem>
> 	<console type='pty' />
>       </devices>
> </domain>
> 
> 
> With the above libvirt XML, Domain is defining, but not starting. When I
> issue the start command it's saying "Domain started", but showing "shut
> off" status. If I changed the target directory(<traget dir='/'/>) from
> '/' to '/home/container1'(<traget dir='/home/container1'/>), the domain
> is starting normally and I am able to see the contents in the target
> directory.
> 
> Can you please let me know, how can I set the target directory to '/'?
> 
> By the way, I am using libvirt version o.7.6.

I won't be able to answer as I don't know libvirt, it's better you ask 
to the libvirt mailing list. This mailing list is for the lxc container 
tools.


> -----Original Message-----
> From: Daniel Lezcano [mailto:daniel.lezcano at free.fr] 
> Sent: Friday, February 05, 2010 2:25 PM
> To: Kumar L Srikanth-B22348
> Cc: lxc-users at lists.sourceforge.net
> Subject: Re: [Lxc-users] Regarding lxc tools and libvirt (virsh).
> 
> Kumar L Srikanth-B22348 wrote:
>> Hi,
>> I am new to Linux Containers and Libvirt.
>> Recently, I installed Linux Container tools on my Fedora Core 12 (64
>> bit) machine and able to create/start/destroy my own containers using 
>> the following commands:
>> lxc-create
>> lxc-sshd
>> lxc-start
>> lxc-destroy
>>  
>> And I also installed libvirtd on my machine, and able to 
>> create/start/destroy my own domains using the following commands:
>> virsh -c lxc:/// define /path/to/domain/xml/configuration/file
>> virsh -c lxc:/// start [Domain Name]
>> virsh -c lxc:/// shutdown [Domain Name] virsh -c lxc:/// undefine 
>> [Domain Name]
>>  
>> I just wonder is there any relation between the domains created with 
>> 'virsh' and containers created with 'lxc-tools' [like lxc-create, 
>> lxc-start ..etc]?
>> Can I start a container created using 'lxc-create' command with virsh 
>> [virsh -c lxc:/// start [Container Name] ...something like that]?
>>  
>> Please let me know.
>>   
> No, these are 2 separate projects. But a driver could be implemented to
> plug the lxc tools with the libvirt.




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