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<H1>[Mageia-discuss] Suggestions for the ISO</H1>
<B>Renaud MICHEL</B>
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TITLE="[Mageia-discuss] Suggestions for the ISO">r.h.michel+mageia at gmail.com
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<I>Sun Nov 7 07:56:31 CET 2010</I>
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<PRE>On dimanche 07 novembre 2010 at 00:54, andre999 wrote :
><i> Olivier Thauvin a écrit :
</I>><i> > * andre999 (<A HREF="https://www.mageia.org/mailman/listinfo/mageia-discuss">andr55 at laposte.net</A>) wrote:
</I>><i> > So to update from -1 to -3 I'll download around 300KB but to upgrade
</I>><i> > from -2 to -3 I'll download the full rpm so maybe around 20MB (in the
</I>><i> > case the rpm is 20MB) ?
</I>><i>
</I>><i> No no no no no !
</I>><i> If from -1 to -3 is 300K, then upgrading from -2 to -3 would still be
</I>><i> 300K.
</I>><i>
</I>><i> Of course, this raises the point that the names of the original files in
</I>><i> -1 will have to be retained after updates, as well as the names of files
</I>><i> replacing them, in order to make the additional updates. (And remove
</I>><i> any interim updates subsequently replaced.)
</I>
But what append if a file modified in an update is rolled back in a
subsequent update?
Let's say revision -1 of a package contains files A B and C, an update to
revision -2 changes B to B', then it is realised that the problem was
actually in file C and not B, so in revision -3 B' is replaced by original B
and C is replaced by C'.
So the delta between -1 and -3 only contains C', so if someone updates with
the delta from revision -2 he will still have B' as the delta won't contain
B which was in the original -1 revision.
><i> This could be facilitated by making the names of the replacement files
</I>><i> in delta updates the original file name + a suffix corresponding to the
</I>><i> delta update.
</I>
I don't understand, the files need to have the correct name to work once
installed, or are you proposing that on an update to keep all previous files
by suffixing them?
--
Renaud Michel
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