[libvirt-users] Use libvirt-python to attach cdrom

Osier Yang jyang at redhat.com
Wed Feb 16 05:19:18 UTC 2011


于 2011年02月16日 11:20, seven 写道:
> Osier Yang<jyang at ...>  writes:
>
>>
>> 于 2011年02月14日 16:37, seven 写道:
>>> Hi all,
>>>
>>> I want to attach cdrom by libvirt.py .But can't find a func in
>>> libvirt.py can finish this work.
>>>
>>> Who can help me ?
>>>
>>> Regard
>>>
>>>
>>
>> # python
>>   >>>  import libvirt
>>   >>>  conn = libvirt.open('qemu:///system')
>>   >>>  dom = conn.lookupByName('f14')
>>   >>>  dir(dom)
>> ['ID', 'OSType', 'UUID', 'UUIDString', 'XMLDesc', '__del__', '__doc__',
>> '__init__', '__module__', '_conn', '_o', 'abortJob', 'attachDevice',
>> 'attachDeviceFlags', 'autostart', 'blockInfo', 'blockPeek',
>> 'blockStats', 'connect', 'coreDump', 'create', 'createWithFlags',
>> 'destroy', 'detachDevice', 'detachDeviceFlags', 'hasCurrentSnapshot',
>> 'hasManagedSaveImage', 'info', 'interfaceStats', 'isActive',
>> 'isPersistent', 'isUpdated', 'jobInfo', 'managedSave',
>> 'managedSaveRemove', 'maxMemory', 'maxVcpus', 'memoryParameters',
>> 'memoryPeek', 'memoryStats', 'migrate', 'migrateSetMaxDowntime',
>> 'migrateToURI', 'name', 'openConsole', 'pinVcpu', 'reboot', 'resume',
>> 'revertToSnapshot', 'save', 'schedulerParameters', 'schedulerType',
>> 'setAutostart', 'setMaxMemory', 'setMemory', 'setMemoryParameters',
>> 'setSchedulerParameters', 'setVcpus', 'setVcpusFlags', 'shutdown',
>> 'snapshotCreateXML', 'snapshotCurrent', 'snapshotListNames',
>> 'snapshotLookupByName', 'snapshotNum', 'suspend', 'undefine',
>> 'updateDeviceFlags', 'vcpus', 'vcpusFlags']
>>   >>>
>>
>> see "attachDevice", "attachDeviceFlags", and "updateDeviceFlags", (in
>> case of your guest already has CDROM device).
>>
>> to get how to use them:
>>
>>   >>>  help(dom.attachDevice)
>>
>> Regards
>> Osier
>>
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>> libvirt-users<at>  redhat.com
>> https://www.redhat.com/mailman/listinfo/libvirt-users
>
> --------------------------__
>
> I'm sorry that I as you do,but I don't find the "attachDeviceFlags" and
> "updateDeviceFlags"
>
>>>> dir(dom)
> ['ID', 'OSType', 'UUID', 'UUIDString', 'XMLDesc', '__del__', '__doc__',
> '__init__', '__module__', '_conn', '_o', 'attachDevice', 'autostart',
> 'blockPeek', 'blockStats', 'connect', 'coreDump', 'create', 'destroy',
> 'detachDevice', 'info', 'interfaceStats', 'maxMemory', 'maxVcpus', 'memoryPeek',
> 'migrate', 'name', 'pinVcpu', 'reboot', 'ref', 'resume', 'save',
> 'schedulerParameters', 'schedulerType', 'setAutostart', 'setMaxMemory',
> 'setMemory', 'setSchedulerParameters', 'setVcpus', 'shutdown', 'suspend',
> 'undefine', 'vcpus']
>
> I think this is the version of the problem . My libvir.py's version is 0.6.3
>

Yes, virDomainAttachDeviceFlags was introduced in 0.7.7, though not sure
if Python binding include it timely, 0.6.3 definitely doesn't support
it. :-)

> And when I use "attachDevice" to attach cdrom , I get "no wrong"(return value is
> "0"),but the vm not find the cdrom.

Not sure if it's bug, but could you confirm it's attached, but just not
mounted?

Regards
Osier




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