CentOS 8 has split packages into baseos and appstream repos

CentOS 8 has split packages into baseos and appstream repos

appstream repos are further split into modules streams and module profiles

there is a new command to manage the modules

# dnf modules 
# dnf module enable module-name:stream
# dnf module list postgresql

and new install commands to install module streams and module profiles

# dnf install @module-name:stream/profile

see

• https://docs.centos.org/en-US/8-docs/managing-userspace-components/assembly_using-appstream/
• https://docs.centos.org/en-US/8-docs/managing-userspace-components/assembly_introduction-to-modules/
• https://docs.centos.org/en-US/8-docs/managing-userspace-components/assembly_introduction-to-modules/#module-streams_introduction-to-modules
• https://docs.centos.org/en-US/8-docs/managing-userspace-components/assembly_installing-rhel-8-content/#selecting-a-stream-before-installation-of-packages_installing-rhel-8-content
• https://docs.centos.org/en-US/8-docs/managing-userspace-components/assembly_installing-rhel-8-content/#installing-a-package_installing-rhel-8-content
• https://docs.centos.org/en-US/8-docs/managing-userspace-components/assembly_installing-rhel-8-content/#selecting-a-stream-before-installation-of-packages_installing-rhel-8-content