<div class="gmail_quote">On Wed, Mar 10, 2010 at 1:54 PM, Alexander Kahl <span dir="ltr"><<a href="mailto:e-user@fsfe.org" target="_blank">e-user@fsfe.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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On 03/10/2010 01:06 PM, Steven I Usdansky wrote:<br>
</div>There is no real recovery for traditional package systems as each change<br>
on a package (install, update, remove etc.) changes the state of the<br>
system as a whole, i.e. the system relies on side effects (mostly<br>
writing files into shared/global locations) and provides no referential<br>
transparency for such actions, same output for same input is never<br>
guaranteed.<br></blockquote><div><span><span title="La mia personale opinione che il rollback da parte di un package manager dipenda molto dal QA con cui vengano fatti i package stessi.">My
(silly perhaps) personal opinion that the rollback part of a package management system
depends very much on QA which are made the same packages in first place. </span><span title="Per come scrivi invece sembrerebbe che il problema sia insolubile per un package manager : se così fosse sembrerebbe strano che vari sviluppatori rpm abbiano perso così tempo per implementarla in primo luogo e per estenderla nel tempo, in qualche particolare versione di rpm - non in Fedora.">The
way you write seems that the problem is insoluble for a package
manager: if so it did seem strange that several rpm developers have lost so time to implement it in the first place and to extend it over time. </span></span><span><span style="background-color: rgb(255, 255, 255);" title="Ma questo mi sembra sia già stato discusso in passato.">But I think this has already been discussed in the past, many time. For example <a href="http://lists.rpm.org/pipermail/rpm-maint/2008-February/001912.html" target="_blank">http://lists.rpm.org/pipermail/rpm-maint/2008-February/001912.html</a><br>
<br>and <br><br><a href="http://lists.rpm.org/pipermail/rpm-list/2009-April/000227.html">http://lists.rpm.org/pipermail/rpm-list/2009-April/000227.html</a><br><br><a href="http://lists.rpm.org/pipermail/rpm-list/2009-April/000231.html">http://lists.rpm.org/pipermail/rpm-list/2009-April/000231.html</a><br>
<br>
But the problem is always relevant <br><a href="http://www.mancoosi.org/work/#wp3" target="_blank">http://www.mancoosi.org/work/#wp3</a><br><br>Regards<br><br></span></span></div></div><br>