Step-by-step – Oracle 12c R2 Database Installation in Ubuntu 20.04

Installing Packages & Symlinking

8. 8. Installing Qt4

   How to Install Qt4 in Ubuntu 20.04

   Qt4 Ubuntu Setup Guide

   GNU/Linux Ubuntu Qt4 Installation Tutorial

9. 9. Installing Packages

   Next Install Required Packages
   So first Install the Packages in the Default Repos:

   sudo apt update

   sudo apt install alien autoconf automake autotools-dev binutils doxygen elfutils expat gawk gcc gcc-multilib g++-multilib libstdc++6:i386 ksh less libtiff5 libtiff5-dev lib32z1 libaio1 libaio-dev libc6-dev libc6-dev-i386 libc6-i386 libelf-dev libltdl-dev libstdc++5 make openssh-server rlwrap rpm sysstat unixodbc unixodbc-dev x11-utils libpth-dev zlibc libglapi-mesa:i386 libglu1-mesa:i386 libpthread-workqueue0 libpthread-workqueue-dev libzthread-2.3-2 libzthread-dev libmotif-common

   Then to Install the Legacy Libraries.
   First, Enable Bionic Repository with:

   sudo su -c "echo 'deb [trusted=yes] http://us.archive.ubuntu.com/ubuntu/ bionic main universe restricted multiverse' >> /etc/apt/sources.list.d/extra.list"

   sudo apt update

   And Install the Qt4 ODBC Library running:

   sudo apt install libodbcinstq4-1

   Now Enable Trusty Repository with:

   sudo su -c "echo 'deb [trusted=yes] http://us.archive.ubuntu.com/ubuntu/ trusty main universe restricted multiverse' >> /etc/apt/sources.list.d/extra.list"

   sudo apt update

   Next Install these Dependencies:

   sudo apt install pdksh libaio-dev lsb-cxx

   Again Enable Precise Repository with:

   sudo su -c "echo 'deb [trusted=yes] http://old-releases.ubuntu.com/ubuntu/ precise main universe' >> /etc/apt/sources.list.d/extra.list"

   sudo apt update

   And then Install the Remaining stuff:

   sudo apt install lesstif2 lesstif2-dev libpthread-stubs0

   After to Restore the Repositories again:

   sudo rm /etc/apt/sources.list.d/extra.list && sudo apt update

   Set to Hold the Installed Libraries without Upgrading:

   sudo apt-mark hold libaio-dev lesstif2 lesstif2-dev pdksh libpthread-stubs0 lsb-cxx

   Finally, Make a needed Symlink:

   sudo ln -s /lib/x86_64-linux-gnu/libgcc_s.so.1 /lib64/libgcc_s.so.1

10. 10. Making Symlinks

    Make Symlinks to Binaries and Libraries
    Linking Binaries with:

    sudo ln -s /usr/bin/awk /bin/awk

    sudo ln -s /usr/bin/rpm /bin/rpm

    sudo ln -s /usr/bin/basename /bin/basename

    And Link Libraries as:

    sudo ln -s /usr/lib/x86_64-linux-gnu /usr/lib64

    sudo ln -s /lib/libgcc_s.so.1 /lib/libgcc_s.so

    sudo ln -s /lib/x86_64-linux-gnu/libgcc_s.so.1 /lib64/libgcc_s.so.1

    sudo ln -sf /bin/bash /bin/sh