I don't like tracking different update states too, which is why I was
suggesting previous-to-latest only drpms. Guess like what apple does.<br><br>It's
not easy for me to determine whether users will like such a feature.
Most casual linux users I meet, are not keen on updating their systems.
And when they finally decide to, they don't want to download lots of
megabytes.
<br><br>One more scenario I could think of, is users in developing
countries like mine, where broadband is rare. Deltas make a lot of
sense on a modem (tell me about it a few years ago). Anyway, if most of
you don't think this is worth the effort, let me know about it.
<br><br>Any idea if OLPC has implemented implemented something similar ?<br><br><div><span class="gmail_quote">On 1/13/07, <b class="gmail_sendername">Dennis Gilmore</b> <<a href="mailto:dennis@ausil.us">dennis@ausil.us
</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On Saturday 13 January 2007 12:40 pm, Ahmed Kamal wrote:<br>> FYI, this yum deltarpm support, is based on that same deltarpm package that
<br>> is made by suse. This suse package can create new rpms from drpm + (either<br>> ondisk files, or old rpm). Either way, a new rpm is created, then<br>> installed. Never does it replace files directly. Not sure why this would be
<br>> bad security wise<br><br>I personally don't like the idea of binary delta's there are too many<br>variables with them and too much overhead. for instance say we update<br>cups 4 times during the life of a release. that means we need to create 4
<br>delta's as the end user can have 4 possible states of the package.<br><br>Windows has always done delta's and for the longest time they only provided<br>delta's from the latest version. which is the reason you had to update a
<br>ton of times to get to the latest version. that has changed but its not<br><a href="http://www.directionsonmicrosoft.com/sample/DOMIS/update/2005/02feb/0205fsuttc.htm">http://www.directionsonmicrosoft.com/sample/DOMIS/update/2005/02feb/0205fsuttc.htm
</a><br><br><br>Apple also provides delta's but they do only deltas from the previous version<br>to latest if you you have an older version you have to get the full<br>version.<br><br>most packages are so small that i don't think the overhead is worth the pain.
<br>OOo and a couple of others i could see maybe, but otherwise I personally<br>don't think its a good idea. It means mirrors need to carry more data.<br>--<br>Dennis Gilmore, RHCE<br>Proud Australian<br><br>_______________________________________________
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