[CentOS] rpm -U query
smt at vgersoft.com
Thu Apr 22 21:18:42 UTC 2010
CentOS, RHEL, all versions.
Suppose I am upgrading a package foo-1.0 to foo-2.0 (assume foo is not
relocatable), and both packages have %preun sections in their .spec files.
It appears that foo-1.0's %preun is run after foo-2.0 has been installed.
So what happens if foo-1.0 needs to run a binary that was provided as part
of foo-1.0 during its %preun stage, and a binary of the same name is
provided with foo-2.0? The installed binary is now foo-2.0's, right? So
how to run foo-1.0's binaries during its %preun stage? Is the old binary
available under a different name before it gets erased?
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