DNF Configuration Reference¶
DNF by default uses the global configuration file at
all *.repo files found under
/etc/yum.repos.d. The latter is typically used
for repository configuration and takes precedence over global configuration.
The configuration file has INI format consisting of section declaration and
name=value options below each on separate line. There are two types of sections
in the configuration files: main and repository. Main section defines all global
configuration options and should be only one.
The repository sections define the configuration for each (remote or local)
repository. The section name of the repository in brackets serve as repo ID reference
and should be unique across configuration files. The allowed characters of repo ID
string are lower and upper case alphabetic letters, digits,
:. The minimal repository configuration file should aside from repo ID
consists of baseurl, metalink
or mirrorlist option definition.
The architecture used for installing packages. By default this is auto-detected. Often used together with ignorearch option.
If enabled dnf will assume
Yeswhere it would normally prompt for confirmation from user input (see also defaultyes). Default is False.
Automatic check whether there is installed newer kernel module with security update than currently running kernel. Default is True.
When upgrading a package, always try to install its highest version available, even only to find out some of its deps are not satisfiable. Enable this if you want to experience broken dependencies in the repositories firsthand. The default is False.
Specifies whether dnf should automatically expire metadata of repos, which are older than their corresponding configuration file (usually the dnf.conf file and the foo.repo file). Default is
True(perform the check). Expire of metadata is also affected by metadata age. See also metadata_expire.
Remove dependencies that are no longer used during
dnf remove. A package only qualifies for removal via
clean_requirements_on_removeif it was installed through DNF but not on explicit user request, i.e. it was pulled in as a dependency. The default is True. (installonlypkgs are never automatically removed.)
Path to the default main configuration file. Default is
Debug messages output level, in the range 0 to 10. The higher the number the more debug output is put to stdout. Default is 2.
If enabled the default answer to user confirmation prompts will be
Yes. Not to be confused with assumeyes which will not prompt at all. Default is False.
Error messages output level, in the range 0 to 10. The higher the number the more error output is put to stderr. Default is 3. This is deprecated in DNF and overwritten by --verbose commandline option.
Should the dnf client exit immediately when something else has the lock. Default is False
Should the dnf attempt to automatically verify GPG verification keys using the DNS system. This option requires libunbound to be installed on the client system. This system has two main features. The first one is to check if any of the already installed keys have been revoked. Automatic removal of the key is not yet available, so it is up to the user, to remove revoked keys from the system. The second feature is automatic verification of new keys when a repository is added to the system. In interactive mode, the result is written to the output as a suggestion to the user. In non-interactive mode (i.e. when -y is used), this system will automatically accept keys that are available in the DNS and are correctly signed using DNSSEC. It will also accept keys that do not exist in the DNS system and their NON-existence is cryptographically proven using DNSSEC. This is mainly to preserve backward compatibility.
List of the following: optional, default, mandatory. Tells dnf which type of packages in groups will be installed when ‘groupinstall’ is called. Default is: default, mandatory
If set to
True, RPM will allow attempts to install packages incompatible with the CPU’s architecture. Defaults to
False. Often used together with arch option.
When this option is set to True and a new package is about to be installed, all packages linked by weak dependency relation (Recommends or Supplements flags) with this package will pulled into the transaction. Default is True.
List of provide names of packages that should only ever be installed, never upgraded. Kernels in particular fall into this category. These packages are never removed by
dnf autoremoveeven if they were installed as dependencies (see clean_requirements_on_remove for auto removal details). This option append the list values to the default installonlypkgs list used by DNF. The number of kept package versions is regulated by installonly_limit.
Number of installonly packages allowed to be installed concurrently. Defaults to 3. The minimal number of installonly packages is 2. Value 0 or 1 means unlimited number of installonly packages.
Keeps downloaded packages in the cache when set to True. Even if it is set to False and packages have not been installed they will still persist until next successful transaction. The default is False.
Directory where the log files will be stored. Default is
time in seconds
The minimal period between two consecutive
makecache timerruns. The command will stop immediately if it’s less than this time period since its last run. Does not affect simple
0to completely disable automatic metadata synchronizing. The default corresponds to three hours. The value is rounded to the next commenced hour.
Set this to $name:$stream to override PLATFORM_ID detected from
/etc/os-release. It is necessary to perform a system upgrade and switch to a new platform.
This option only has affect during an install/update. It enables dnf’s obsoletes processing logic, which means it makes dnf check whether any dependencies of given package are no longer required and removes them. Useful when doing distribution level upgrades. Default is ‘true’.
Command-line option: –obsoletes
List of directories that are searched for plugin configurations to load. All configuration files found in these directories, that are named same as a plugin, are parsed. The default path is
List of directories that are searched for plugins to load. Plugins found in any of the directories in this configuration option are used. The default contains a Python version-specific path.
List of packages that DNF should never completely remove. They are protected via Obsoletes as well as user/plugin removals.
The default is:
glob:/etc/dnf/protected.d/*.conf. So any packages which should be protected can do so by including a file in
/etc/dnf/protected.dwith their package name in it.
DNF will protect also the package corresponding to the running version of the kernel.
DNF searches for repository configuration files in the paths specified by
reposdir. The behavior of
reposdircould differ when it is used along with --installroot option.
RPM debug scriptlet output level. One of:
debug. Default is
Set this to False to disable the automatic running of
group upgradewhen running the
upgradecommand. Default is True (perform the operation).
URLs for the repository.
The relative cost of accessing this repository, defaulting to 1000. This value is compared when the priorities of two repositories are the same. The repository with the lowest cost is picked. It is useful to make the library prefer on-disk repositories to remote ones.
Include this repository as a package source. The default is True.
list of strings
URLs of a GPG key files that can be used for signing metadata and packages of this repository, empty by default. If a file can not be verified using the already imported keys, import of keys from this option is attempted and the keys are then used for verification.
URL of a mirrorlist for the repository.
Set this to True to disable module RPM filtering and make all RPMs from the repository available. The default is False. This allows user to create a repository with cherry-picked hotfixes that are included in a package set on a modular system.
A human-readable name of the repository. Defaults to the ID of the repository.
The priority value of this repository, default is 99. If there is more than one candidate package for a particular operation, the one from a repo with the lowest priority value is picked, possibly despite being less convenient otherwise (e.g. by being a lower version).
Overrides the retries option from the [main] section for this repository.
If disabled, all unavailable packages or packages with broken dependencies given to DNF command will be skipped without raising the error causing the whole operation to fail. Currently works for install command only. The default is True.
Type of repository metadata. Supported values are:
rpm-md. Aliases for
Right side of every repo option can be enriched by the following variables:
Refers to the system’s CPU architecture e.g, aarch64, i586, i686 and x86_64.
Refers to the base architecture of the system. For example, i686 and i586 machines both have a base architecture of i386, and AMD64 and Intel64 machines have a base architecture of x86_64.
Refers to the release version of operating system which DNF derives from information available in RPMDB.
Options for both [main] and Repo¶
Some options can be applied in either the main section, per repository, or in a combination. The value provided in the main section is used for all repositories as the default value and concrete repositories can override it in their configuration.
Total bandwidth available for downloading. Meaningful when used with the throttle option. Storage size is in bytes by default but can be specified with a unit of storage. Valid units are ‘k’, ‘M’, ‘G’.
When enabled, DNF will save bandwidth by downloading much smaller delta RPM files, rebuilding them to RPM locally. However, this is quite CPU and I/O intensive. Default is True.
When the relative size of delta vs pkg is larger than this, delta is not used. Default value is 75 (Deltas must be at least 25% smaller than the pkg). Use 0 to turn off delta rpm processing. Local repositories (with file:// baseurl) have delta rpms turned off by default.
Determines whether DNF will allow the use of package groups for this repository. Default is True (package groups are allowed).
Exclude packages of this repository, specified by a name or a glob and separated by a comma, from all operations. Can be disabled using
--disableexcludescommand line switch.
If enabled a metric is used to find the fastest available mirror. This overrides the order provided by the mirrorlist/metalink file itself. This file is often dynamically generated by the server to provide the best download speeds and enabling fastestmirror overrides this. The default is False.
Whether to perform GPG signature check on packages found in this repository. The default is False.
Include packages of this repository, specified by a name or a glob and separated by a comma, in all operations. Inverse of excludepkgs, DNF will exclude any package in the repository that doesn’t match this list. This works in conjunction with exclude and doesn’t override it, so if you ‘excludepkgs=*.i386’ and ‘includepkgs=python*’ then only packages starting with python that do not have an i386 arch will be seen by DNF in this repo. Can be disabled using
--disableexcludescommand line switch.
IP address type
Determines how DNF resolves host names. Set this to ‘4’/’IPv4’ or ‘6’/’IPv6’ to resolve to IPv4 or IPv6 addresses only. By default, DNF resolves to either addresses.
Whether to perform a GPG signature check on local packages (packages in a file, not in a repositoy). The default is False.
Maximum number of simultaneous package downloads. Defaults to 3.
time in seconds
The period after which the remote repository is checked for metadata update and in the positive case the local metadata cache is updated. The default corresponds to 48 hours. Set this to
neverto make the repo never considered expired. Expire of metadata can bee also triggered by change of timestamp of configuration files (
<repo>.repo). See also check_config_file_age.
This sets the low speed threshold in bytes per second. If the server is sending data at the same or slower speed than this value for at least timeout option seconds, DNF aborts the connection. The default is 1000. Valid units are ‘k’, ‘M’, ‘G’.
URL of a proxy server to connect through. If none is specified then direct connection is used (the default).
The username to use for connecting to the proxy server. Empty by default.
The password to use for connecting to the proxy server. Empty by default.
The authentication method used by the proxy server. Valid values are ‘basic’, ‘digest’, ‘negotiate’, ‘ntlm’, ‘digest_ie’, ‘ntlm_wb’, ‘none’ and ‘any’ (default).
Whether to perform GPG signature check on this repository’s metadata. The default is False.
Set the number of times any attempt to retrieve a file should retry before returning an error. Setting this to 0 makes dnf try forever. Default is 10.
Path to the directory or file containing the certificate authorities to verify SSL certificates. Empty by default - uses system default.
When enabled, remote SSL connections are verified. If the client can not be authenticated connecting fails and the given repo is not used further. On False, SSL connections can be used but are not verified. Default is True.
Path to the SSL client certificate used to connect to remote sites. Empty by default.
Path to the SSL client key used to connect to remote sites. Empty by default.
Limits the downloading speed. It might be an absolute value or a percentage, relative to the value of the bandwidth option option.
0means no throttling (the default). The absolute value is in bytes by default but can be specified with a unit of storage. Valid units are ‘k’, ‘M’, ‘G’.
time in seconds
Number of seconds to wait for a connection before timing out. Used in combination with minrate option option. Defaults to 30 seconds.
The username to use for connecting to repo with basic HTTP authentication. Empty by default.
The password to use for connecting to repo with basic HTTP authentication. Empty by default.
Types of Options¶
This is a data type with only two possible values.
One of following options can be used: 1, 0, True, False, yes, no
- It is a whole number that can be written without a fractional component.
- It is an option that could represent one or more strings separated by space or comma characters.
- It is a sequence of symbols or digits without any whitespace character.
Main Configuration File
- Any properly named file in /etc/dnf/vars is turned into a variable named after the filename (or overrides any of the above variables but those set from commandline). Filenames may contain only alphanumeric characters and underscores and be in lowercase.