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6.3. Common Post-installation Tasks

After you finish the installation and go through one of the initial setup utilities described above, your system is ready for use. However, other administrative tasks not covered by the installer or the initial setup utilities may still be necessary, depending on how you plan to use your system. The list below describes some of the more common tasks usually performed immediately after a new installation.
Recover a lost root password
The root password, which is configured during the installation, is required for accessing the system as the root user. Without this password you will not be able to configure your system or install additional software. If you lost or forgot your root password, you can reset it by following the steps described in Section 7.4.1, “Resetting the Root Password”.
Configure the network
In most cases, network access is configured during the installation process, either in the Anaconda installation program (see Section 5.4.12, “Network & Hostname”) or in a Kickstart file (see Section A.3.2, “network (optional) - Configure Network Interfaces”). For information on configuring the network after the installation, see the Fedora Networking Guide, available at http://docs.fedoraproject.org/.
Perform an initial system update
If you installed Fedora from a full installation ISO image (such as the Workstation live image or full Server DVD), it is recommended to perform an initial system update, because your installation media likely contained older versions of software packages. During the initial update, all installed packages are updated to their latest available versions. Updates to packages provide security fixes, bug fixes and enhancements.
The DNF package manager is used for updating installed packages. For more information about updating your system with DNF, see the Fedora System Administrator's Guide, available at http://docs.fedoraproject.org/.
Install driver updates
Usually, drivers for system devices are already supported in the kernel provided by Red Hat Enterprise Linux. However, occasionally, support for devices that have been released recently could be missing. In these cases, a driver update enabling your device may be available.
Devices necessary to complete the installation can have driver updates provided before the installation begins. If a device is missing a driver, but it is not essential during the installation, it is recommended to wait until after the installation completes, and install additional drivers afterwards. For instructions on installing and enabling additional drivers on the installed system using RPM and DNF, see the Fedora System Administrator's Guide, available at http://docs.fedoraproject.org/.
Configure additional repositories
New software is installed from package repositories. Package repositories are organized sets of software and metadata that can be accessed by the DNF package manager. By default, several update repositories provided by Fedora are configured automatically and you can install updates and additional software from those. However, if you want to set up additional repositories, for example ones containing your own software, some extra steps are needed.
For information about configuring additional software repositories, see the Fedora System Administrator's Guide, available at http://docs.fedoraproject.org/.
Install additional packages
You can control which packages will be installed by selecting an environment in the Software Selection dialog in the graphical installation (see Section 5.4.7, “Software Selection”). This dialog does not provide a way to choose individual packages, only predefined sets. However, you can use the DNF package manager to install additional packages after the installation. See the Fedora System Administrator's Guide, available at http://docs.fedoraproject.org/, for more information.
Switch to a graphical login
Depending on the options you chose during the installation process, it is possible that your system does not have a graphical interface, instead offering only a text-based prompt. If this is the case and you wish to enable a graphical desktop after the installation, you must install the X Window System and your preferred desktop environment (either GNOME or KDE).
As with all other software, these packages can be installed using the DNF package manager. For information about using DNF to install new packages, see the Fedora System Administrator's Guide, available at http://docs.fedoraproject.org/. For information on how to enable graphical login by default, see Section 7.4.4, “Booting into a Graphical Environment”.