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Re: In-kernel units for block numbers, etc ...
Date: Sat, 28 Nov 2015 22:34:25 +0100
From: Michael van Elst <mlelstv%serpens.de@localhost>
Message-ID: <20151128213424.GC6812%serpens.de@localhost>
| > that would at least allow data to be recovered, by default, from
| > the wrong sized media.
There's no reason there could not be a userland tool that would read
the underlying device and decrypt it (either writing back an unencrypted
filesys, or copying the data to another device/file).
| I'm not really convinced that such half-compatibility is useful.
Nor am I
| For recovery you always have vnd which can simulate any geometry.
I havem't looked carefully yet, but does vnd have the RMW behaviour to
allow an emulated small sector drive to exist on a big sector underlying.
I can see that it works if VNF_USE_VN_RDWR gets set (sparse file, weird
underlying device, ...) but I don't see anything that validates the
sector sizes (but I might just be missing it.)
kre
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