On Wed, 2005-06-29 at 22:34 +0200, Stefano Cavallari wrote: > I read on the archives about yum and Bt. > Altough it seems an interesting idea, I think that there are other > optimizations to do to speed up yum. > Most time one uses yum, is for upgrading. > Usually most of the package is unchanged. Think of kernel modules, > artworks, documentation, long scripts. I think rsync algos can speed up > ELFs too... or maybe not :) > Ok you already get the point. > Make a rsync plugin, something like mc's rpm vfs (cd foo.rpm#rpm in mc, > try this). So it has both headers and files, in a manner that one could > theoretically reconstruct the rpm. > It shouldn't be too hard, as rpm AFAIK are just modded cpio archives. > Additionally, add a custom limit for small files, eg 1-2M for broadband, > 500 K for dialup. > What you're talking about is something closer to DeltaRPMS. You should ask on rpm-list about those. -sv