microdnf install -y openssh openssh-server openssh-clients initscripts wget passwd tar crontabs unzip bzip2
microdnf install -y hostname libaio
microdnf install -y glibc-*.i686 libgcc-*.i686 libstdc++-*.i686
microdnf install -y java
microdnf install -y ed vim sed tar which ncurses

microdnf install -y yum oracle-epel-release-el8
microdnf install -y ncurses-compat-libs
microdnf install -y screen rlwrap

yum config-manager --enable ol8_baseos_latest
yum config-manager --enable ol8_appstream
microdnf install -y oracle-database-preinstall-19c

check /etc/hosts with /etc/hostname: your hostname (like mypeoplesoft) should resolve only IPv4.

For full install of PeopleSoft (so with DB), check if you have more than 1G free RAM... if not, you can do that:
dd bs=1024 count=1M if=/dev/zero of=/swapfile
mkswap /swapfile
swapon /swapfile

Check if you have more than 2 or 3G free space for /tmp, if not ask more to IT.

go to DPK folder and:
cd setup
./psft-dpk-setup.sh # No args for full install