Re: [Xen-devel] [PATCH][TOOLS] libfsimage: portability fixes

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Christoph Egger writes ("Re: [Xen-devel] [PATCH][TOOLS] libfsimage: portability 
fixes"):
> On Thursday 27 March 2008 16:36:45 Ian Jackson wrote:
> > I accept that it's not suitable for use as the full block backend, but
> > perhaps the answer is to pass pygrub an edited version of the device
> > name, or have pygrub edit it itself.  If we were to use the non-raw
> > device for pygrub and the raw device for qemu-dm, would things work ?
> 
> I don't think it would work without a lot of work on the backend device,
> if it is possible at all. For now, the backend assumes it was given a
> block device.

I'm afraid I don't follow this at all.  (What does `block device'
stand in opposition to?)

Is it possible for pygrub to open the non-raw device while the block
backend is using the raw device ?  Or do you mean that the block
backend is already using the non-raw device and that you're having
pygrub use the raw device just so that you are able to use the same
underlying storage object twice simultaneously ?

Ian.

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