[Mageia-discuss] Suggestions for the ISO

Sun Nov 7 23:43:46 CET 2010

On dimanche 07 novembre 2010 at 22:33, Luca Berra wrote :
+> > you must include all intermediate updates packages to create the delta.
+> 
+> you just have to keep track of package 1 and n-1, not all of them
+
+No, because a roll back of a file can happen on any update. If a file is 
+changed in release n-2 and rolled back in n-1, if you only consider packages 
+1 n-1 and n you miss the roll back for the people who updated to n-2 but 
+missed the update to n-1.
+So the system that will create the deltas must have access to every update 
+published since the release, or at least maintain a list of all the files 
+that changed in any update. And not only changes in the files themselves, 
+but also to their meta-informations, like ownership and mode, and other rpm-
+related meta-informations like %doc or %config.
+
+-- 
+Renaud Michel
+