rpmbuild and upgrades

[Mike McGrath]

I'm having difficulty with building an RPM file to upgrade.  The issue
comes when I need to add and delete a user.  In the spec file I have it
creating the user in %pre and removing the user in %postun.  I'm using
useradd and userdel to create and delete the user.  When I build and
install the RPM everything works as expected, same goes when I remove
it.  But when I do an rpm -U for an upgrade for some reason when all is
said and done the user does not exist.  Anyone know what's going on?
 	
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Michael P. McGrath
Senior Systems Engineer