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Request for Comments: libarchive, bsdtar
- Subject: Request for Comments: libarchive, bsdtar
- From: brooks at one-eyed-alien.net (Brooks Davis)
- Date: Wed Jan 14 13:28:14 2004
On Wed, Jan 14, 2004 at 10:22:02PM +0100, Poul-Henning Kamp wrote:
> In message <40059DFB_(_dot_)_9000904_(_at_)_mail_(_dot_)_ru>, Vladimir Dozen writes:
> >> 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.
For cases where you know you're going to be using the archive as a file
system, you might be able to cheat a bit by creating a special file
containing an efficent index of the contents of the archive. That would
let you avoid keeping everything in memory and rescanning the disk
Any statement of the form "X is the one, true Y" is FALSE.
PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4
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