[vbox-dev] how patching is applied

Klaus Espenlaub klaus.espenlaub at oracle.com
Mon Oct 15 01:59:35 PDT 2012

On 15.10.2012 08:32, prabhjeet kaur wrote:
> Dear members,
> Thanks for reply,
> I want to know the basic understanding of patch.
> 1. How patch can be created and applied.
> 2. Where the code to generate patch is available.
> 3. patch can be applied to the disk image of virtual machine or not.
> 4. Patch can be applied to current state snapshots only or it can be
> applied to previous snapshots also.

I think you have to explain in detail what you mean with "patch", 
otherwise no one can follow or help. Especially as items 3 and 4 seem to 
hint that you want to modify the disk contents and not the memory state 
of a VM (so the .sav file is not the right thing).

At least for 4 I can give you an answer: since snapshots are meant to be 
the state of a VM as of a given time one can't modify them safely, 
especially when there are child snapshots. The only disk state which can 
be safely modified is "current state" (which is not a snapshot).


> regards,
> Prabhjeet Kaur
> _______________________________________________
> vbox-dev mailing list
> vbox-dev at virtualbox.org
> https://www.virtualbox.org/mailman/listinfo/vbox-dev

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