rpm scriptlet ordering for install/remove/upgrade using yum
I'm working on a bug in our rpm scriptlets which is probably originating from order in which our scriptlets are executed during package install/removal/upgrade. We are using yum on Redhat Enterprise.
Obviously I first need a good understanding of the order of the rpm scriptlets - and interestingly enough I have not found a good summary of this anywhere.
From what I gather this is the scriptlet ordering for upgrades:
%pretransof new package%preof new packageprein- package install
%postof new packagepostin%preunof old package- removal of old package
%postunof old package%posttransof new package
However it doesn't list the scriptlet orderings for installing a new package not previously on the system (i.e. not an upgrade) and for removing one? From the above ordering I am able to guess how these orderings might look, but I'd like to get some educated opinion on this as well...
Answer
If you are installing two different packages at once (e.g. primary, secondary ), where one depends on the other (secondary requires primary), the order is:
%pretransofprimary%pretransofsecondary%preofprimary- installation of
primary %postofprimary%preofsecondary- installation of
secondary %postofsecondary%posttransofprimary%posttransofsecondary
When removing these packages at once, the order is:
%preunofsecondary- removal of
secondary %postunofsecondary%preunofprimary- removal of
primary $postunofprimary