Am 20.06.2012 14:32, schrieb Björn Persson: > Michal Hlavinka wrote: >> Correct approach would be to save state before installation of new >> version starts and start dovecot (if flag is set) after old version is >> removed - that would mean %postun script. This does not seem to work on >> reinstall (the same version is installed) - %postun script is not executed. > > Please also consider what happens when the new version of Dovecot requires a > new version of some library. RPM will ensure that both packages are updated in > the same transaction, but if I understand correctly it's not until %posttrans > that you can be sure that the new library is in place. one reason more why the cuurent behavior re-starting services on updates is simply wrong: * it breaks running services on dist-upgrades * it breaks coordinated updates/restarts of admins action with 10,20,30 instances of fedora at the same time * it breaks security if a depending library is updated after the service in the transaction whileyou imply for users that they do no longer need to use their own brain - t is generallya bad direction giving the user a sign that is own brain is longter useful * it forces coordinated working admin to re-build every server package and pacth out the restart-part from SPEC
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