The BaseOS repository contains the packages that make up the core functionality of the operating system. These software elements are downloaded in the form of Red Hat Package Manager (RPM) package files and then installed on the system. A typical RHEL 8 system will have around 1500 RPM packages installed. To see a list of all the RPM packages currently installed on the system simply run the rpm command as follows:
# rpm -qa | more
qemu-kvm-block-rbd-2.12.0-41.el8+2104+3e32e6f8.x86_64
kyotocabinet-libs-1.2.76-17.el8.x86_64
cyrus-sasl-scram-2.1.27-0.3rc7.el8.x86_64
curl-7.61.1-5.el8.x86_64
.
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A list of packages available for installation from the BaseOS repository is available by running the dnf command as follows:
# dnf list
To obtain a list of packages that match a search string use dnf as follows:
# dnf search "search string"
It is also possible to identify which package contains a specific file:
# dnf provides...