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
Nowhere it would normally prompt for confirmation from user input. Default is
If enabled dnf will assume
Yeswhere it would normally prompt for confirmation from user input (see also defaultyes). Default is
Automatic check whether there is installed newer kernel module with security update than currently running kernel. Default is
The base architecture used for installing packages. By default this is auto-detected.
Trueinstructs the solver to either use a package with the highest available version or fail. On
False, do not fail if the latest version cannot be installed and go with the lower version. The default is
True. Note this option in particular can be set in your configuration file by your distribution.
Path to a directory used by various DNF subsystems for storing cache data. Has a reasonable root-writable default depending on the distribution. DNF needs to be able to create files and directories at this location.
If set to
TrueDNF will run entirely from system cache, will not update the cache and will use it even in case it is expired. Default is
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.
Controls whether the libsolv debug files should be created when solving the transaction. The debug files are created in the ./debugdata directory. Default is
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
Controls wheather rpm shoud check available disk space during the transaction. Default is
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
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. Default is
List of the following: optional, default, mandatory. Tells dnf which type of packages in groups will be installed when ‘groupinstall’ is called. Default is:
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.
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.
The root of the filesystem for all packaging operations. It requires an absolute path. See also –installroot commandline 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 be pulled into the transaction. Default is
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
Directory where the log files will be stored. Default is
Log files are rotated
log_rotatetimes before being removed. If
0, the rotation is not performed. Default is
Log files are rotated when they grow bigger than log_size bytes. If log_size is 0, the rotation is not performed. The default is 1 MB. Valid units are ‘k’, ‘M’, ‘G’.
The size applies for individual log files, not the sum of all log files. See also log_rotate.
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.
Controls how multilib packages are treated during install operations. Can either be
"best"(the default) for the depsolver to prefer packages which best match the system’s architecture, or
"all"to install all available packages with compatible architectures.
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
Directory where DNF stores its persistent data between runs. Default is
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.
Controls whether the plugins are enabled. Default is
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.
Used for substitution of
$releaseverin the repository configuration. See also repo variables.
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
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.
List of strings adding extra flags for the RPM transaction.
tsflag value RPM Transaction Flag noscripts RPMTRANS_FLAG_NOSCRIPTS test RPMTRANS_FLAG_TEST notriggers RPMTRANS_FLAG_NOTRIGGERS nodocs RPMTRANS_FLAG_NODOCS justdb RPMTRANS_FLAG_JUSTDB nocontexts RPMTRANS_FLAG_NOCONTEXTS nocaps RPMTRANS_FLAG_NOCAPS nocrypto RPMTRANS_FLAG_NOFILEDIGEST
nocryptooption will also set the
_RPMVSF_NODIGESTSVS flags. The
testoption provides a transaction check without performing the transaction. It includes downloading of packages, gpg keys check (including permanent import of additional keys if necessary), and rpm check to prevent file conflicts. The
nocapsis supported with rpm-4.14 or later. When
nocapsis used but rpm doesn’t support it, DNF only reports it as an invalid tsflag.
Set this to False to disable the automatic running of
group upgradewhen running the
upgradecommand. Default is
True(perform the operation).
List of directories where variables definition files are looked for. Defaults to
"/etc/dnf/vars", "/etc/yum/vars". See variable files in Configuration reference.
Enables or disables the use of repository metadata compressed using the zchunk format (if available). Default is
List of URLs for the repository. Defaults to
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. Defaults to
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).
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.
In addition to these hard coded variables, user-defined ones can also be used. They can be defined either via variable files, or by using special environmental variables. The names of these variables must be prefixed with DNF_VAR_ and they can only consist of alphanumeric characters and underscores:
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, which repositories can then override 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’.
Determines whether a special flag should be added to a single, randomly chosen metalink/mirrorlist query each week. This allows the repository owner to estimate the number of systems consuming it, by counting such queries over a week’s time, which is much more accurate than just counting unique IP addresses (which is subject to both overcounting and undercounting due to short DHCP leases and NAT, respectively).
The flag is a simple “countme=N” parameter appended to the metalink and mirrorlist URL, where N is an integer representing the “longevity” bucket this system belongs to. The following 4 buckets are defined, based on how many full weeks have passed since the beginning of the week when this system was installed: 1 = first week, 2 = first month (2-4 weeks), 3 = six months (5-24 weeks) and 4 = more than six months (> 24 weeks). This information is meant to help distinguish short-lived installs from long-term ones, and to gather other statistics about system lifecycle.
Default is False.
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. Defaults to
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.
This option can only be used to strengthen the active RPM security policy set with the
%_pkgverify_levelmacro (see the
/usr/lib/rpm/macrosfile for details). That means, if the macro is set to ‘signature’ or ‘all’ and this option is False, it will be overridden to True during DNF runtime, and a warning will be printed. To squelch the warning, make sure this option is True for every enabled repository, and also enable localpkg_gpgcheck.
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
excludepkgsand 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. Defaults to
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 repository). The default is False. This option is subject to the active RPM security policy (see gpgcheck for more details).
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’.
The password to use for connecting to a repository with basic HTTP authentication. Empty by default.
URL of a proxy server to connect through. Set to an empty string to disable the proxy setting inherited from the main section and use direct connection instead. The expected format of this option is
<scheme>://<ip-or-hostname>[:port]. (For backward compatibility, ‘_none_’ can be used instead of the empty string.)
Note: The curl environment variables (such as
http_proxy) are effective if this option is unset. See the
curlman page for details.
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
method meaning basic HTTP Basic authentication digest HTTP Digest authentication negotiate HTTP Negotiate (SPNEGO) authentication ntlm HTTP NTLM authentication digest_ie HTTP Digest authentication with an IE flavor ntlm_wb NTLM delegating to winbind helper none None auth method any All suitable methods
Whether to perform GPG signature check on this repository’s metadata. The default is False.
Set the number of total retries for downloading packages. The number is accumulative, so e.g. for retries=10, dnf will fail after any package download fails for eleventh time. 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 certificates are verified. If the client can not be authenticated, connecting fails and the repository is not used any further. If
False, SSL connections can be used, but certificates are not verified. Default is
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 User-Agent string to include in HTTP requests sent by DNF. Defaults to
libdnf (NAME VERSION_ID; VARIANT_ID; OS.BASEARCH)
where NAME, VERSION_ID and VARIANT_ID are OS identifiers read from the os-release(5) file, and OS and BASEARCH are the canonical OS name and base architecture, respectively. Example:
libdnf (Fedora 31; server; Linux.x86_64)
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.