From owner-freebsd-arch@FreeBSD.ORG  Wed Jan 14 13:22:07 2004
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To: Vladimir Dozen <vladimir-dozen@mail.ru>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Wed, 14 Jan 2004 14:52:27 EST."
             <40059DFB.9000904@mail.ru> 
Date: Wed, 14 Jan 2004 22:22:02 +0100
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cc: freebsd-arch@freebsd.org
Subject: Re: Request for Comments: libarchive, bsdtar 
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In message <40059DFB.9000904@mail.ru>, Vladimir Dozen writes:
>ehlo.
>
>> If you become a bored person requiring entertainment, it might be quite
>> interesting to create a read-only tarfs for use as a root file system
>> loaded in an md device.
>
>   I'm just curious: is it possible to write a GEOM class to mount
>   a given tar as a FS in R/O mode (using libarchive, I mean)?

That would be a filesystem, not a GEOM class.

And yes it would be.  Part of the trouble is directory searches
where you need to build some kind of index in order to not have
to run through sequentially all the time.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.