Chapter 4. Searching for RHEL 8 content

Procedure

1. List all enabled repositories on your system,:

   # yum repolist

   To display only certain repositories, append one of the following options to the command:

   • Append --disabled to list only disabled repositories.
   • Append --all to list both enabled and disabled repositories.

2. Optional: List additional information about the repositories:

   # yum repoinfo <repository_name>

   Note

   You can filter the results by appending global expressions as arguments. For more information, see Specifying global expressions in yum input.

Procedure

1. List both installed and available groups:

   # yum group list

   Note that you can filter the results by appending the --installed and --available option to the yum group list command. By using the --hidden option, you can display hidden groups in the output.

2. List mandatory, optional, and default packages contained in a particular group:

   # yum group info <group_name>

   Note

   You can filter the results by appending global expressions as arguments. For more details, see Specifying global expressions in yum input.

3. Optional: View the number of installed and available groups:

   # yum group summary

Procedure

1. List the module information in one of the following ways:

   • List all available modules:

     $ yum module list
     Name         Stream   Profiles                                Summary
     ...
     nodejs       18       common [d], development, minimal, s2i   Javascript runtime
     postgresql   15       client, server [d]                      PostgreSQL server and client module
     ...
     
     Hint: [d]efault, [e]nabled, [x]disabled, [i]nstalled

     Use the yum module list <module_name> command to list the same information but only for a specific module.

   • Search for which module provides a certain package:

     $ yum module provides <package_name>

     For example, to display which module and profiles provide the npm package, enter:

     $ yum module provides npm
     ...
     npm-1:8.19.4-1.16.20.2.4.module+el8.9.0+21536+8fdee1fb.x86_64
     Module   : nodejs:16:8090020240315081818:a75119d5:x86_64
     Profiles : common development s2i
     Repo     : rhel-AppStream
     Summary  : Javascript runtime
     ...

2. Use one of these methods to list module details:

   • List all details about a module, including a description, list of all profiles, and a list of all packages the module provides:

     $ yum module info <module_name>

     For example, to display details about the nodejs module, enter:

     $ yum module info nodejs
     ...
     Name             : nodejs
     Stream           : 20
     Version          : 8090020240228165436
     Context          : a75119d5
     Architecture     : x86_64
     Profiles         : common [d], development, minimal, s2i
     Default profiles : common
     Repo             : rhel-AppStream
     Summary          : Javascript runtime
     Description      : Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
     Requires         : platform:[el8]
     Artifacts        : nodejs-1:20.11.1-1.module+el8.9.0+21380+12032667.src
                      : nodejs-1:20.11.1-1.module+el8.9.0+21380+12032667.x86_64
     ...

   • List which packages each module profile installs:

     $ yum module info --profile <module_name>

     Note

     Each of the profiles installs a different set of packages, including their dependencies.

     For example, to display this information for the nodejs module, enter:

     $ yum module info --profile nodejs
     ...
     Name        : nodejs:18:8090020240301110609:a75119d5:x86_64
     common      : nodejs
                 : npm
     development : nodejs
                 : nodejs-devel
                 : npm
     minimal     : nodejs
     s2i         : nodejs
                 : nodejs-nodemon
                 : npm
     ...