If the package is already installed, use "rpm -qR <package-name>" to get the list of packages that this package depends on. For example:
$ rpm -qR openldap
If the package is not yet installed, use "yum deplist <package-name>" to get the list of packages that this package depends on. For example:
$ yum deplist postfix
If the RPM package is relocatable, then we can install it into multiple location:
$ rpm -Uhv --prefix /data1 rpm-pkg.rpm
$ rpm --force -ihv --prefix /data2 rpm-pkg.rpm
With such installation, we need to remember not to use yum to upgrade the package later, or use the rpm to upgrade the package without specifying the prefix.
Try this:
$ rpm -e -vv --allmatches --nodeps --noscripts --notriggers <package-name>
The default RPM macro variables are stored in /usr/lib/rpm/macros. The default RPM rc file is /usr/lib/rpm/rpmrc.