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+ <H1>[Mageia-dev] Proposal: Updating released versions (long post)</H1>
+ <B>Michael Scherer</B>
+ <A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Proposal%3A%20Updating%20released%20versions%20%28long%20post%29&In-Reply-To=%3C1286537531.1552.94.camel%40akroma.ephaone.org%3E"
+ TITLE="[Mageia-dev] Proposal: Updating released versions (long post)">misc at zarb.org
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+ <I>Fri Oct 8 13:32:11 CEST 2010</I>
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+<PRE>Le vendredi 08 octobre 2010 &#224; 09:36 +0200, Luca Berra a &#233;crit :
+&gt;<i> On Thu, Oct 07, 2010 at 07:49:29PM -0400, Frank Griffin wrote:
+</I>&gt;<i> &gt;
+</I>&gt;<i> &gt;(Here's the biggie :-) )
+</I>&gt;<i> &gt;4) We need to enhance the urpmi.recover functionality and bring it fully
+</I>&gt;<i> &gt;into mainstream urpmi so that ANY PACKAGE CAN BE ROLLED BACK TO ITS
+</I>&gt;<i> &gt;PREVIOUS VERSION (sorry for the caps). If we don't want to be stuck
+</I>&gt;<i> I just read it 3 times, and i still believe doing the above might prove to be a
+</I>&gt;<i> nightmare.
+</I>&gt;<i> rolling back a single, well identified change is a doable task.
+</I>&gt;<i> rolling back proceduraly a complex change becomes exponentially complex
+</I>&gt;<i> even for experienced system engineers, let alone a piece of software.
+</I>
+We could, using brtfs/lvm snapshots. But this may produce some hidden
+side effects. Maybe we could do the reverse :
+ie, we do a clone / snapshot for testing the upgrade ( maybe in a vm,
+except a vm would not help to test real hardware issue ), and if people
+are not satisfied , they do not put it in &quot;production&quot;.
+
+I think there was a presentation about rpm rollback at FOSDEM this year
+( or last year, maybe ), but I didn't really listened, as I do not
+remember how it ended.
+
+--
+Michael Scherer
+
+</PRE>
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