So today I tried to install the Oracle Preinstall RPM on a freshly installed Oracle Linux 7 machine. However, when I executed
yum search rdbms the preinstall package was nowhere to be seen!
It turns out that we need to enable the Oracle Linux 7 “addons” repository in order to find the package. Swiss blogger Martin Berger put me on the right track.
To enable the repository, open the file
/etc/yum.repos.d/public-yum-ol7.repo and find the following repository entry: