linuxexpert-practice-labs/labs/rhcsa/7-5-installing-and-updating/README.md

RHCSA 7.5: Installing and updating software

Installing a package from a file with its dependencies, and applying all available updates. (Registering a RHEL system needs a Red Hat subscription, so it isn't part of this lab.)

Before you start

The lab needs the VM's repositories to work. It makes sure mariadb isn't installed, and that there's at least one update to apply: if the system is fully up to date, it installs an older version of a small package (such as tzdata).

Tasks

1. Download the mariadb package with dnf download, try to install it with rpm -i, then install it from the file with its dependencies.
2. Apply all available updates and show what changed.

Hints

• dnf download mariadb saves the .rpm in the current directory; rpm -i reports "Failed dependencies"; dnf install ./FILE.rpm; rpm -q mariadb, dnf history info last.
• dnf check-update (exit status 100 means updates are waiting, 0 none), dnf upgrade, dnf history list, dnf history info.