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Re: [virt-tools-list] clone with copy-on-write image



On 06/06/2011 01:48 PM, Florian Lindner wrote:
> Hellio,
> 
> What is the way to achieve something like that:
> 
> I want to mount an existing partition /dev/sdX from within a virtual machine. 
> If possible I don't want to clone the partition but rather use it like a 
> template and just record the writes (or maybe simply discard them).

Sounds like a perfect use case for a qcow2 file with /dev/sdX as the
backing file.

https://rwmj.wordpress.com/2011/06/03/tip-using-a-backing-file-to-record-file-and-registry-changes-part-1/

-- 
Eric Blake   eblake redhat com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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