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Re: WAPBL and backwards compatibility

On Fri, Aug 01, 2008 at 05:22:09PM +1000, Simon Burge wrote:
>  - Bump the FFS magic number.  This seems like a bit of a sledge hammer
>    approach, but may indeed be the most practical solution.  Someone
>    asked privately about inter-operating system compatibility with
>    FreeBSD and OpenBSD - the magic number change does solve this too.
>    It was also suggested that we could have a tool (tunefs?) that could
>    "downgrade" the magic number if there was a clean (or no?) journal.

Shouldn't we bump the 'fslevel' instead?  That's what's been done in
similar situations in the past.

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