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Re: [Qemu-devel] PATCH: Control over drive open modes for backing file


From: Jamie Lokier
Subject: Re: [Qemu-devel] PATCH: Control over drive open modes for backing file
Date: Thu, 31 Jul 2008 13:15:37 +0100
User-agent: Mutt/1.5.13 (2006-08-11)

Daniel P. Berrange wrote:
>  - Adds a new option to the '-drive' command line parameter to specify
>    how the file should be opened, and any fallback

I would like to open the main file read-write, but the backing file
read-only, as the backing file is shared among many images.

Can your options choose that?

The monitor 'commit' command implies that the (first) backing file is
opened writable, if the main file is.

-- Jamie




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