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Chapter 5. Updating RHEL content
With the DNF software management tool, you can check if your system has any pending updates. You can list packages that need updating and choose to update a single package, multiple packages, or all packages at once. If any of the packages you choose to update have dependencies, these dependencies are updated as well.
5.1. Checking for updates Copier lienLien copié sur presse-papiers!
To identify which packages installed on your system have available updates, you can list them.
Procedure
Check the available updates for installed packages:
dnf check-update
# dnf check-update
Copy to Clipboard Copied! Toggle word wrap Toggle overflow The output returns the list of packages and their dependencies that have an update available.
5.2. Updating packages Copier lienLien copié sur presse-papiers!
You can use DNF to update a single package, a package group, or all packages and their dependencies at once.
When applying updates to the kernel, dnf
always installs a new kernel regardless of whether you are using the dnf upgrade
or dnf install
command. Note that this only applies to packages identified by using the installonlypkgs
DNF configuration option. Such packages include, for example, the kernel
, kernel-core
, and kernel-modules
packages.
Procedure
Depending on your scenario, use one of the following options to apply updates:
To update all packages and their dependencies, enter:
dnf upgrade
# dnf upgrade
Copy to Clipboard Copied! Toggle word wrap Toggle overflow To update a single package, enter:
dnf upgrade <package_name>
# dnf upgrade <package_name>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow To update packages only from a specific package group, enter:
dnf group upgrade <group_name>
# dnf group upgrade <group_name>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow