On Red Hat Enterprise Linux 2.1 x86 you may have to install the following RPMs and dependencies to meet the software requirements:
rpm -Uvh glibc-2.2.4-32.11.i686.rpm \
rpm -Uvh gcc-2.96-108.1.i386.rpm \
rpm -Uvh openmotif-2.1.30-11.i386.rpm
rpm -Uvh redhat-release-as-2.1AS-4.noarch.rpm
You may have to upgrade
glibc in order to pass Oracle's "Product-specific Prerequisite" checks. Oracle's recommended
glibc version is 220.127.116.11.7 or higher.
There is no setarch RPM for Red Hat Enterprise Linux 2.1.
Also, it is important to install a newer kernel version for Red Hat Enterprise Linux 2.1. Do not use a kernel older than 2.4.9-e.25. To check the kernel version run