Me too - Re: [Fedora-xen] dissapearing guests

[Paul O'Rorke]

Great when there is a simple fix.  Thanks soooo much.  Is this 
documented somewhere and I missed it?

Rodger Haynes wrote:
> Thanks - that works great!
>
> Daniel P. Berrange wrote:
>> On Fri, Nov 10, 2006 at 08:54:27AM -0500, Rodger Haynes wrote:
>>  
>>> I am experiencing the same problem on a new Dell Optiplex GX520. I'm 
>>> new at this as well.
>>>
>>> Paul O'rorke wrote:
>>>    
>>>> maybe I've missed something but if I reboot or shutdown a guest 
>>>> domain I can't start it again.  xm --list doesn't show the domain.  
>>>> From the Virtual Machine Manager (FC6) if I go :  File --> Restore 
>>>> saved machine  (Restore a saved machine from a filesystem image) 
>>>> and pint to /vm/webserver I get a dialogue box stating:
>>>>
>>>>    *Error restoring domain '/vm/webserver'.  Is the domain already
>>>>    running?*
>>>>
>>>>
>>>> Similary if I try to restore from the disk file with xm restore I 
>>>> get the following:
>>>>
>>>>    *# xm restore /vm/webserver*
>>>>    *Error: Restore failed*
>>>>    *Usage: xm restore <CheckpointFile>*
>>>>
>>>>    *Restore a domain from a saved state.*
>>>>
>>>>
>>>> I'm guessing that the disk file is not the correct file to restore 
>>>>       
>>> >from   -  <CheckpointFile>?? but I can't find anywhere 
>>> documentation    
>>>> on how to open these machines.       
>>
>> No, the 'restore' functionality is for re-activating a suspended VM
>> that has previously been saved out to disk with 'save'. Think of it
>> as equivalent of 'hibernate to disk' on your laptop.
>>
>> If you shutdown/reboot the domain then 'restore' is not what you want
>> instead you want 'create' which is equivalent of cold boot on a laptop.
>> eg, 'xm create <name>'.
>> Unfortunately once you shutdown a domain, XenD looses all knowledge of
>> it - that's why 'xm list' didn't show it, and virt-manager can't see
>> it. Rest assured the domain is stilon disk - the config file is kept
>> in /etc/xen. If you use 'xm create' then it loads the config file into
>> XenD and boots the domain.
>>
>> We're actively working on getting support for inactivate domains into
>> virt-manager which will help resolve the confusion in this area.
>>
>> Regards,
>> Dan.
>>   
>