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Date: Tue, 22 Apr 2008 02:12:27 +0100
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Subject: Re: cannot move geli disk from 6.3-R to 6.1-R
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On Mon, 21 Apr 2008 12:33:07 +0600
Dmitry Sukhodoyev <raven428@gmail.com> wrote:

> i try to attach geli provider, which i have used in 6.3-RELEASE to 
> 6.1-RELEASE:
> 
> # geli attach -k /root/da1.key /dev/da1
> MD5 hash mismatch for /dev/da1
> 
> in 6.3-R it still attaches successfully, but in 6.1-R is not. system 
> with 6.1-R is not my own, so i can't update it. how i can attach geli 
> provider from my 6.3-R to this 6.1-R?

In the 7.0 source code there are two versions of the function that
computes that hash, so I guess that 6.3 is back-compatible with
6.1, but that a 6.3 geli-device can't be read  by 6.1.

If this is a removable drive that needs to inter-operate, I would
suggest that you dump the data, and create a new geli device under 6.1.