Dear Fellow-List Members:
I am running the latest,
fully updated, F8 Xen kernel with F8, updated DomU on top. I need to
clone that DomU - indeed, a need to do rather a lot of cloning to
fulfill our project's mission. I tried to run virt-clone but it will
not perform as per the man's examples and despite hours of searching on
the 'net I cannot find any reason why not.
Here is the example from the man:
-EXAMPLES
- Clone the guest called "demo" which has a single disk to copy
-
- # virt-clone \
- --original demo \
- --name newdemo \
- --file /var/lib/xen/images/newdemo.img
What I have tried:
Where:
HanoverGuest = name of functioning DomU (shut off for cloning...)
KohaHanoverConf_Gold = name of new DomU
New File Image: KohaHanoverConf_Gold.dsk
Here is the command sequence I issue:
#virt-clone --original HanoverGuest --name KohaHanoverConf_Gold --file /var/lib/xen/images/KohaHanoverConf_Gold.dsk -d
I get:
Fri, 08 Feb 2008 14:57:31 DEBUG start clone with HV Xen
Fri, ditto DEBUG clone device list: ['/var/lib/xen/images/KohaHanoverConf_Gold.dsk']
Fri, ditto DEBUG clone device size: [1048570000L]
Fri, ditto DEBUG clone device type: [True]
ERROR: Disk size must an int or a float.
What would you like to use as the disk (path)?
...I have tried many, many variants with no more luck and usually with the same error message. I have tried to run it
without creating a disk image myself, with one of 0 bytes size and, as can be seen, one of 10gig size. No joy!
Furthermore, I cannot find any information on the net on what those debug messages mean so I have little to judge what is going on.
Apparently the ERROR msg. itself,likely, is generated by:
@@ -83,9 +77,13 @@ class VirtualDisk:
if size is None and not os.path.exists(self.path):
raise ValueError, \
_("A size must be provided for non-existent disks")
- if size is not None and size <= 0:
+ if size is not None and \
+ (__builtin__.type(size) is not __builtin__.type(1) and \
+ __builtin__.type(size) is not __builtin__.type(1.0)):
+ raise ValueError, _("Disk size must be an int or a float.")
...which comes from a September 28, 2007 patch authored by Cole Robinson for virtinst validation fixes, found here:
http://www.spinics.net/linux/fedora/et-mgmt-tools/msg01760.html ...alas, without knowing all the code I am not sure what is going on.
It seems to suggest that somehow the diskimage file is not recognized as a built in data type or something similar - but there seem to
be no commands available in virt-clone to set the datatype, adapt for the date type or even tell a user what datatype they need. Since I am a relative
Linux newbie I may very well be making a classic 'flat-forehead' error - but what?
I tried to run virt-clone as a basic interactive tool - the man states that it can run interactively with no command line switches. Here is what happens:
#virt-clone
..and I get...
ERROR: A new disk image file for the clone guest is required and then it goes back to the prompt. Not helpful!
I very badly need to clone DomU's effectively during our development process - and afterwards and I would be excruciatingly grateful for any help anyone can provide!
Regards,
Petrus
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