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Date:      Sun, 15 Feb 1998 15:11:41 +1100
From:      Bruce Evans <bde@zeta.org.au>
To:        bde@zeta.org.au, toor@dyson.iquest.net
Cc:        committers@FreeBSD.ORG, dyson@FreeBSD.ORG, eivind@yes.no, wollman@khavrinen.lcs.mit.edu
Subject:   Re: devfs persistence
Message-ID:  <199802150411.PAA16481@godzilla.zeta.org.au>

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>> Use mfs.
>> 
>That is a non-starter, and only adds yet another layer of complexity.  Devfs
>is a good idea for certain applications.  (Have *you* actually used MFS in
>an embedded application, with heterogeneous products, mostly (only) to support
>device nodes?, answer: it is a kludge.)

No.  When I last worked on an embedded system, a minimal mfs image (about
32K) would have been several times larger than the code :-).

What practical disadvantages does it have besides ones shared by specfs,
lack of persistence, and possibly slightly larger bloat than for devfs?

If the system is an nfs client, then you can use /dev/vn to mount ffs
images kept on the server to get persistence and avoid mfs.

Bruce

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