On 04/17/2011 10:12 AM, Michael Schwendt wrote:
On Sat, 16 Apr 2011 11:11:28 +0200, TM wrote:
> when I want a script to be run during package upgrade, is it better to
> call it in %postun if $1>=1, or to call it in
> %post if $1>1? Is one of the two possibilities preferred?
It depends on what the script is supposed to do and whether files from the
old pkg are still around and may be needed by the script/program or may
confuse the script/program. When %postun is executed, any old pkg files
have been removed already.
One important additional consideration is that when using %post, you can
control what happens in your new package. With %postun, it's the old
package's %postun that runs on upgrades, which could be a problem and
something that can be hard to work around in the new package. One
example of such a problem from this list yesterday: