yum.conf(5) - Online Manual Page Of Unix/Linux

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yum.conf(5) yum configuration file yum.conf(5)

NAME
yum.conf - Configuration file for yum(8).

DESCRIPTION
Yum uses a configuration file at /etc/yum.conf.

Additional configuration files are also read from the directories set by the reposdir
option (default is '/etc/yum.repos.d' and '/etc/yum/repos.d'). See the reposdir option
below for further details.

PARAMETERS
There are two types of sections in the yum configuration file(s): main and repository.
Main defines all global configuration options. There should be only one main section. The
repository section(s) define the configuration for each repository/server. There should be
one or more repository sections.

[main] OPTIONS
The [main] section must exist for yum to do anything. It consists of the following
options:

cachedir
Directory where yum should store its cache and db files. The default is
'/var/cache/yum'.

reposdir
A list of directories where yum should look for .repo files which define reposito-
ries to use. Default is '/etc/yum.repos.d, /etc/yum/repos.d'. Each file in this
directory should contain one or more repository sections as documented in [reposi-
tory] options below. These will be merged with the repositories defined in
/etc/yum.conf to form the complete set of repositories that yum will use.

debuglevel
Debug message output level. Practical range is 0-10. Default is '2'.

errorlevel
Error message output level. Practical range is 0-10. Default is '2'.

logfile
Full directory and file name for where yum should write its log file.

gpgcheck
Either '1' or '0'. This tells yum whether or not it should perform a GPG signature
check on packages. When this is set in the [main] section it sets the default for
all repositories. This option also determines whether or not an install of a pack-
age from a local RPM file will be GPG signature checked. The default is '0'.

assumeyes
Either '1' or '0'. Determines whether or not yum prompts for confirmation of criti-
cal actions. Default is '0' (do prompt).
Commmand-line option: -y

alwaysprompt
Either '1' or '0'. Without this option, yum will not prompt for confirmation when
the list of packages to be installed exactly matches those given on the command
line. Unless assumeyes is enabled, it will still prompt for package removal, or
when additional packages need to be installed to fulfill dependencies. Default is
'1'.

tolerant
Either '1' or '0'. If enabled, then yum will be tolerant of errors on the command
line with regard to packages. For example: if you request to install foo, bar and
baz and baz is installed; yum won't error out complaining that baz is already
installed. Default to '0' (not tolerant).
Commmand-line option: -t

exclude
List of packages to exclude from updates or installs. This should be a space sepa-
rated list. Shell globs using wildcards (eg. * and ?) are allowed.

exactarch
Either '1' or '0'. Set to '1' to make yum update only update the architectures of
packages that you have installed. ie: with this enabled yum will not install an
i686 package to update an i386 package. Default is '1'.

installonlypkgs
List of packages that should only ever be installed, never updated. Kernels in par-
ticular fall into this category. Defaults to 'kernel, kernel-smp, kernel-bigmem,
kernel-enterprise, kernel-debug, kernel-unsupported'.

kernelpkgnames
List of package names that are kernels. This is really only here for the updating
of kernel packages and should be removed out in the yum 2.1 series.

showdupesfromrepos
Either '0' or '1'. Set to '1' if you wish to show any duplicate packages from any
repository. Set to '0' if you want only to see the newest packages from any reposi-
tory. Default is '0'.

obsoletes
This option only has affect during an update. It enables yum's obsoletes processing
logic. Useful when doing distribution level upgrades. See also the yum upgrade com-
mand documentation for more details (yum(8)).
Commmand-line option: --obsoletes

overwrite_groups
Either '0' or '1'. Used to determine yum's behaviour if two or more repositories
offer the package groups with the same name. If overwrite_groups is '1' then the
group packages of the last matching repository will be used. If overwrite_groups is
'0' then the groups from all matching repositories will be merged together as one
large group.

installroot
Specifies an alternative installroot, relative to which all packages will be
installed.
Commmand-line option: --installroot

distroverpkg
The package used by yum to determine the "version" of the distribution. This can be
any installed package. Default is 'redhat-release'.

diskspacecheck
Either '0' or '1'. Set this to '0' to disable the checking for sufficient diskspace
before a RPM transaction is run. Default is '1' (perform the check).

tsflags
Comma or space separated list of transaction flags to pass to the rpm transaction
set. These include 'noscripts', 'notriggers', 'nodocs', 'test', and 'repackage'.
You can set all/any of them. However, if you don't know what these do in the con-
text of an rpm transaction set you're best leaving it alone. Default is an empty
list.

recent Number of days back to look for 'recent' packages added to a repository. Used by
the list recent command. Default is '7'.

retries
Set the number of times any attempt to retrieve a file should retry before return-
ing an error. Setting this to '0' makes yum try forever. Default is '6'.

keepalive
Either '0' or '1'. Set whether HTTP keepalive should be used for HTTP/1.1 servers
that support it. This can improve transfer speeds by using one connection when
downloading multiple files from a repository. Default is '1'.

timeout
Number of seconds to wait for a connection before timing out. Defaults to 30 sec-
onds. This may be too short of a time for extremely overloaded sites.

http_caching
Determines how upstream HTTP caches are instructed to handle any HTTP downloads
that Yum does. This option can take the following values:

'all' means that all HTTP downloads should be cached.

'packages' means that only RPM package downloads should be cached (but not reposi-
tory metadata downloads).

'none' means that no HTTP downloads should be cached.

The default is 'all'. This is recommended unless you are experiencing caching
related issues. Try to at least use 'packages' to minimise load on repository
servers.

throttle
Enable bandwidth throttling for downloads. This option can be expressed as a abso-
lute data rate in bytes/sec. An SI prefix (k, M or G) may be appended to the band-
width value (eg. '5.5k' is 5.5 kilobytes/sec, '2M' is 2 Megabytes/sec).

Alternatively, this option can specify the percentage of total bandwidth to use
(eg. '60%'). In this case the bandwidth option should be used to specify the maxi-
mum available bandwidth.

Set to '0' to disable bandwidth throttling. This is the default.

bandwidth
Use to specify the maximum available network bandwidth in bytes/second. Used with
the throttle option (above). If throttle is a percentage and bandwidth is '0' then
bandwidth throttling will be disabled. If throttle is expressed as a data rate
(bytes/sec) then this option is ignored. Default is '0' (no bandwidth throttling).

commands
List of functional commands to run if no functional commands are specified on the
command line (eg. "update foo bar baz quux"). None of the short options (eg. -y,
-e, -d) are accepted for this option.

proxy url to the proxy server that yum should use.

proxy_username
username to use for proxy

proxy_password
password for this proxy

plugins
Either '0' or '1'. Global switch to enable or disable yum plugins. Default is '0'
(plugins disabled). See the PLUGINS section of the yum(8) man for more information
on installing yum plugins.

pluginpath
A list of directories where yum should look for plugin modules. Default is
'/usr/lib/yum-plugins'.

metadata_expire
Time (in seconds) after which the metadata will expire. So that if the current
metadata downloaded is less than this many seconds old then yum will not update the
metadata against the repository. If you find that yum is not downloading informa-
tion on updates as often as you would like lower the value of this option.

[repository] OPTIONS
The repository section(s) take the following form:

Example:
[repositoryid]
name=Some name for this repository
baseurl=

repositoryid
Must be a unique name for each repository, one word.

name A human readable string describing the repository.

baseurl
Must be a URL to the directory where the yum repository's 'repodata' directory
lives. Can be an http://, ftp:// or file:// URL. You can specify multiple URLs in
one baseurl statement. The best way to do this is like this:
[repositoryid]
name=Some name for this repository
baseurl=

If you list more than one baseurl= statement in a repository you will find yum will
ignore the earlier ones and probably act bizarrely. Don't do this, you've been
warned.

mirrorlist
Specifies a URL to a file containing a list of baseurls. This can be used instead
of or with the baseurl option. Substitution variables, described below, can be used
with this option.

enabled
Either '1' or '0'. This tells yum whether or not use this repository.

gpgcheck
Either '1' or '0'. This tells yum whether or not it should perform a GPG signature
check on the packages gotten from this repository.

gpgkey A URL pointing to the ASCII-armoured GPG key file for the repository. This option
is used if yum needs a public key to verify a package and the required key hasn't
been imported into the RPM database. If this option is set, yum will automatically
import the key from the specified URL. You will be prompted before the key is
installed unless the assumeyes option is set.

Multiple URLs may be specified here in the same manner as the baseurl option
(above). If a GPG key is required to install a package from a repository, all keys
specified for that repository will be installed.

exclude
Same as the [main] exclude option but only for this repository. Substitution vari-
ables, described below, are honored here.

includepkgs
Inverse of exclude. This is a list of packages you want to use from a repository.
If this option lists only one package then that is all yum will ever see from the
repository. Defaults to an empty list. Substitution variables, described below,
are honored here.

enablegroups
Either '0' or '1'. Determines whether yum will allow the use of package groups for
this repository. Default is '1' (package groups are allowed).

failovermethod
Either 'roundrobin' or 'priority'.

'roundrobin' randomly selects a URL out of the list of URLs to start with and pro-
ceeds through each of them as it encounters a failure contacting the host.

'priority' starts from the first baseurl listed and reads through them sequen-
tially.

failovermethod defaults to 'roundrobin' if not specified.

keepalive
Either '1' or '0'. This tells yum whether or not HTTP/1.1 keepalive should be used
with this repository. See the global option in the [main] section above for more
information.

timeout
Overrides the timeout option from the [main] section for this repository.

http_caching
Overrides the http_caching option from the [main] section for this repository.

retries
Overrides the retries option from the [main] section for this repository.

throttle
Overrides the throttle option from the [main] section for this repository.

bandwidth
Overrides the bandwidth option from the [main] section for this repository.

metadata_expire
Overrides the metadata_expire option from the [main] section for this repository.

proxy url to the proxy server for this repository. Set to '_none_' to disable the global
proxy setting for this repository. If this is unset it inherits it from the global
setting

proxy_username
username to use for proxy. If this is unset it inherits it from the global setting

proxy_password
password for this proxy. If this is unset it inherits it from the global setting

URL INCLUDE SYNTAX
The inclusion of external configuration files is supported for /etc/yum.conf and the .repo
files in the /etc/yum.repos.d directory. To include a URL, use a line of the following
format:

include=

The configuration file will be inserted at the position of the "include=" line. Included
files may contain further include lines. Yum will abort with an error if an inclusion loop
is detected.

VARIABLES
There are a number of variables you can use to ease maintenance of yum's configuration
files. They are available in the values of several options including name, baseurl and
commands.

$releasever
This will be replaced with the value of the version of the package listed in dis-
troverpkg. This defaults to the version of 'redhat-release' package.

$arch This will be replaced with your architecture as listed by os.uname()[4] in Python.

$basearch
This will be replaced with your base architecture as listed in archwork.py in yum.
For example, if your $arch is i686 your $basearch will be i386.

$YUM0-$YUM9
These will be replaced with the value of the shell environment variable of the same
name. If the shell environment variable does not exist then the configuration file
variable will not be replaced.

FILES
/etc/yum.conf
/etc/yum.repos.d/
/etc/yum/pluginconf.d/