Necessary Java JRE libraries are not bundled with Directory Server. They must be downloaded and extracted separately before installing the Directory Server packages.

Any Red Hat Enterprise Linux customer can download the required JRE packages from the RHEL Extras or Supplemental channel in Red Hat Network, and then use native Red Hat tools to install the package. For example, to install the JRE on Red Hat Enterprise Linux 4, use the up2date command:

up2date java-1.5.0-ibm

On Red Hat Enterprise Linux 5, use the yum command:

yum install java-1.5.0-ibm

Using yum or up2date is the preferred and recommended way to install Java. However, it is also possible to download the JRE from the Java site.

After installing the JRE, install the Directory Server packages, as described in Section 3.2, “Installing the Directory Server Packages”.