Provided by: yum_3.2.25-1ubuntu2_all bug


       yum - Yellowdog Updater Modified


       yum [options] [command] [package ...]


       yum  is  an  interactive,  rpm based, package manager. It can automatically perform system
       updates, including dependency analysis  and  obsolete  processing  based  on  "repository"
       metadata.  It  can  also perform installation of new packages, removal of old packages and
       perform  queries  on  the  installed  and/or   available   packages   among   many   other
       commands/services  (see  below).  yum is similar to other high level package managers like
       apt-get and smart.

       While there are some graphical interfaces directly to the yum code, more recent  graphical
       interface development is happening with PackageKit and the gnome-packagekit application.

       command is one of:
        * install package1 [package2] [...]
        * update [package1] [package2] [...]
        * check-update
        * upgrade [package1] [package2] [...]
        * remove | erase package1 [package2] [...]
        * list [...]
        * info [...]
        * provides | whatprovides feature1 [feature2] [...]
        * clean [ packages | headers | metadata | dbcache | all ]
        * makecache
        * groupinstall group1 [group2] [...]
        * groupupdate group1 [group2] [...]
        * grouplist [hidden] [groupwildcard] [...]
        * groupremove group1 [group2] [...]
        * groupinfo group1 [...]
        * search string1 [string2] [...]
        * shell [filename]
        * resolvedep dep1 [dep2] [...]
        * localinstall rpmfile1 [rpmfile2] [...]
        * localupdate rpmfile1 [rpmfile2] [...]
        * reinstall package1 [package2] [...]
        * downgrade package1 [package2] [...]
        * deplist package1 [package2] [...]
        * repolist [all|enabled|disabled]
        * version [all|installed|available|group-*|grouplist|groupinfo]
        * history [info|list|summary|redo|undo|new]
        * help [command]

       Unless the --help or -h option is given, one of the above commands must be present.

       Repository configuration is honored in all operations.

              Is  used  to  install  the  latest  version of a package or group of packages while
              ensuring that all dependencies are satisfied.  If  no  package  matches  the  given
              package  name(s),  they  are  assumed  to  be a shell glob and any matches are then
              installed. If the name starts with an @ character the rest of the name is  used  as
              though  passed  to  the  groupinstall  command. If the name is a file, then install
              works like localinstall.  If  the  name  doesn't  match  a  package,  then  package
              "provides"  are  searched  (Eg.  "")  as are filelists (Eg.
              "/usr/bin/yum"). Also note  that  for  filelists,  wildcards  will  match  multiple

       update If  run without any packages, update will update every currently installed package.
              If one or more packages or package globs are specified, Yum will  only  update  the
              listed  packages.   While  updating packages, yum will ensure that all dependencies
              are satisfied. If the packages or globs specified match to packages which  are  not
              currently  installed  then update will not install them. update operates on groups,
              files, provides and filelists just like the "install" command.

              If the main obsoletes configure option is true (default) or the --obsoletes flag is
              present  yum  will  include  package  obsoletes in its calculations - this makes it
              better for distro-version changes, for example: upgrading  from  somelinux  8.0  to
              somelinux 9.

              Implemented  so  you  could  know if your machine had any updates that needed to be
              applied without running it interactively. Returns exit value of 100  if  there  are
              packages available for an update. Also returns a list of the packages to be updated
              in list format. Returns 0 if no packages are available for update. Returns 1 if  an
              error occurred.  Running in verbose mode also shows obsoletes.

              Is  the  same  as  the update command with the --obsoletes flag set. See update for
              more details.

       remove or erase
              Are used to remove the specified packages from the system as well as  removing  any
              packages  which  depend  on  the  package being removed. remove operates on groups,
              files, provides and filelists just like the "install" command.

       list   Is used to list various information about available packages; more complete details
              are available in the List Options section below.

       provides or whatprovides
              Is  used  to  find  out  which  package  provides  some feature or file. Just use a
              specific name or a file-glob-syntax wildcards to list  the  packages  available  or
              installed that provide that feature or file.

       search Is  used  to  find  any  packages matching a string in the description, summary and
              package name fields of an rpm. Useful for finding a package you do not know by name
              but know by some word related to it.

       info   Is  used  to  list  a description and summary information about available packages;
              takes the same arguments as in the List Options section below.

       clean  Is used to clean up various things which accumulate in the yum cache directory over
              time.  More complete details can be found in the Clean Options section below.

              Is  used to download and make usable all the metadata for the currently enabled yum

              Is used to install all of the individual packages in  a  group,  of  the  specified
              types (this works as if you'd taken each of those package names and put them on the
              command line for a "yum install" command).
               The  group_package_types  configuration  option  specifies  which  types  will  be

              Is  just  an  alias  for  groupinstall,  which will do the right thing because "yum
              install X" and "yum update X" do the same thing, when X is already installed.

              Is used to list the available groups from all  yum  repos.  Groups  are  marked  as
              "installed" if all mandatory packages are installed, or if a group doesn't have any
              mandatory packages then it is installed if any of the optional or  default  package
              are  installed.  The optional "hidden" argument will also list groups marked as not
              being "user visible". If you pass the -v option, to enable verbose mode,  then  the
              groupids are displayed.

              Is  used  to remove all of the packages in a group, unlike "groupinstall" this will
              remove everything regardless of group_package_types. It is worth pointing out  that
              packages  can  be  in  more  than  one  group,  so  "groupinstall  X Y" followed by
              "groupremove Y" does not do give you the same result as "groupinstall X".

              Is used to give the description and package list of a group (and which  type  those
              packages  are  marked  as). Note that you can use the yum-filter-data and yum-list-
              data plugins to get/use the data the other way around (Ie. what groups own packages
              need updating). If you pass the -v option, to enable verbose mode, then the package
              names are matched against installed/available packages similar to the list command.

       shell  Is used to enter the 'yum shell', when a filename is specified the contents of that
              file is executed in yum shell mode. See yum-shell(8) for more info

              Is  used to list packages providing the specified dependencies, at most one package
              is listed per dependency.

              Is used to install a set of local rpm files. If required the  enabled  repositories
              will be used to resolve dependencies. Note that the install command will do a local
              install, if given a filename.

              Is used to update the system by specifying local rpm files. Only the specified  rpm
              files  of  which  an  older  version  is  already  installed will be installed, the
              remaining specified packages will be ignored.  If required the enabled repositories
              will  be used to resolve dependencies. Note that the update command will do a local
              install, if given a filename.

              Will reinstall the identically versioned package as is currently  installed.   This
              does  not  work  for  "installonly"  packages,  like Kernels. reinstall operates on
              groups, files, provides and filelists just like the "install" command.

              Will try and downgrade a package  from  the  version  currently  installed  to  the
              previously  highest  version  (or  the  specified version).  The depsolver will not
              necessarily work, but if you specify all the packages it should work (and thus. all
              the  simple  cases  will work). Also this does not work for "installonly" packages,
              like Kernels. downgrade operates on groups, files, provides and filelists just like
              the "install" command.

              Produces  a  list  of all dependencies and what packages provide those dependencies
              for the given packages.

              Produces a list of configured repositories. The default  is  to  list  all  enabled
              repositories. If you pass -v, for verbose mode, more information is listed.

              Produces  a  "version"  of  the  rpmdb, and of the enabled repositories if "all" is
              given as the first argument. You can also specify version groups  in  the  version-
              groups  config. file. If you pass -v, for verbose mode, more information is listed.
              The version is calculated by taking a sha1 hash of the packages (in sorted  order),
              and  the  checksum_type/checksum_data  entries from the yumdb. Note that this rpmdb
              version is now also used significantly within yum (esp. in yum history).

              The history command allows the user to view what has happened in past  transactions
              (assuming  the history_record config. option is set). You can use info/list/summary
              to view what happened, undo/redo to act on that information and new to start a  new
              history file.

              The  info/list/summary  commands  take  either a transactions id or a package (with
              wildcards, as in Specifying package  names),  all  three  can  also  be  passed  no
              arguments.  list  can  be  passed  the  keyword "all" to list all the transactions.
              undo/redo just take a transaction id.

       help   Produces help, either for all commands or if given a command name then the help for
              that particular command.


       Most  command  line  options  can  be  set  using  the  configuration file as well and the
       descriptions indicate the necessary configuration option to set.

       -h, --help
              Help; display a help message and then quit.

       -y     Assume yes; assume that the answer to any question which would be asked is yes.
              Configuration Option: assumeyes

       -c [config file]
              Specifies the config file location - can take HTTP and  FTP  URLs  and  local  file

       -q, --quiet
              Run without output.  Note that you likely also want to use -y.

       -v, --verbose
              Run with a lot of debugging output.

       -d [number]
              Sets  the  debugging level to [number] - turns up or down the amount of things that
              are printed. Practical range: 0 - 10
              Configuration Option: debuglevel

       -e [number]
              Sets the error level to [number] Practical  range  0  -  10.  0  means  print  only
              critical  errors  about which you must be told. 1 means print all errors, even ones
              that are not overly important. 1+ means print more errors (if any) -e 0 is good for
              cron jobs.
              Configuration Option: errorlevel

       -R [time in minutes]
              Sets  the  maximum  amount  of  time yum will wait before performing a command - it
              randomizes over the time.

       -C     Tells yum to run entirely from cache - does not  download  or  update  any  headers
              unless it has to to perform the requested action.

              Reports  the  yum  version  number and installed package versions for everything in
              history_record_packages (can be added to by plugins).

              Doesn't limit packages to their latest  versions  in  the  info,  list  and  search
              commands (will also affect plugins which use the doPackageLists() API).

              Specifies  an  alternative  installroot,  relative  to  which  all packages will be
              Configuration Option: installroot

              Enables specific repositories by  id  or  glob  that  have  been  disabled  in  the
              configuration file using the enabled=0 option.
              Configuration Option: enabled

              Disables specific repositories by id or glob.
              Configuration Option: enabled

              This  option  only  has affect for an update, it enables yum´s obsoletes processing
              logic. For more information see the update command above.
              Configuration Option: obsoletes

       -x, --exclude=package
              Exclude a specific package by name  or  glob  from  updates  on  all  repositories.
              Configuration Option: exclude

              Display  colorized  output  automatically, depending on the output terminal, always
              (using ANSI codes) or never. Note that some commands (Eg. list and info) will do  a
              little extra work when color is enabled.  Configuration Option: color

              Disable the excludes defined in your config files. Takes one of three options:
              all == disable all excludes
              main == disable excludes defined in [main] in yum.conf
              repoid == disable excludes defined for that repo

              Run  with  one  or more plugins disabled, the argument is a comma separated list of
              wildcards to match against plugin names.

              Run with all plugins disabled.
              Configuration Option: plugins

              Run with GPG signature checking disabled.
              Configuration Option: gpgcheck

              Resolve depsolve problems by removing packages that are causing problems  from  the
              Configuration Option: skip_broken

       -t, --tolerant
              This option currently does nothing.


       The  following  are  the  ways  which you can invoke yum in list mode.  Note that all list
       commands include information on the version of the package.


              The format of the output of yum list is:

              name.arch ]version-release  repo or @installed-from-repo

       yum list [all | glob_exp1] [glob_exp2] [...]
              List all available and installed packages.

       yum list available [glob_exp1] [...]
              List all packages in the yum repositories available to be installed.

       yum list updates [glob_exp1] [...]
              List all packages with updates available in the yum repositories.

       yum list installed [glob_exp1] [...]
              List the packages specified by args.  If an argument does not match the name of  an
              available  package,  it  is  assumed  to  be a shell-style glob and any matches are

       yum list extras [glob_exp1] [...]
              List the packages installed on the  system  that  are  not  available  in  any  yum
              repository listed in the config file.

       yum list obsoletes [glob_exp1] [...]
              List the packages installed on the system that are obsoleted by packages in any yum
              repository listed in the config file.

       yum list recent
              List packages recently added into the repositories.

       Specifying package names
              All the list options mentioned above take  file-glob-syntax  wildcards  or  package
              names  as  arguments, for example yum list available 'foo*' will list all available
              packages that match 'foo*'. (The single quotes will keep your shell from  expanding
              the globs.)


       The  following  are the ways which you can invoke yum in clean mode. Note that "all files"
       in the commands below means "all files in currently enabled repositories".  If you want to
       also  clean  any  (temporarily)  disabled  repositories  you  need to use --enablerepo='*'

       yum clean expire-cache
              Eliminate the local data saying when the metadata and mirrorlists  were  downloaded
              for each repo. This means yum will revalidate the cache for each repo. next time it
              is used. However if the cache is still valid, nothing significant was deleted.

       yum clean packages
              Eliminate any cached  packages  from  the  system.   Note  that  packages  are  not
              automatically deleted after they are downloaded.

       yum clean headers
              Eliminate all of the header files which yum uses for dependency resolution.

       yum clean metadata
              Eliminate  all  of the files which yum uses to determine the remote availability of
              packages. Using this option will force yum to download all the  metadata  the  next
              time it is run.

       yum clean dbcache
              Eliminate  the  sqlite cache used for faster access to metadata.  Using this option
              will force yum to recreate the cache the next time it is run.

       yum clean all
              Runs yum clean packages and yum clean headers, yum clean  metadata  and  yum  clean
              dbcache as above.


       Specifying package names
              A  package  can  be  referred to for install,update,list,remove etc with any of the


              For example: yum remove kernel-2.4.1-10.i686


       Yum can be extended through the use of plugins. A plugin is a Python ".py" file  which  is
       installed  in one of the directories specified by the pluginpath option in yum.conf. For a
       plugin to work, the following conditions must be met:

       1. The plugin module file must be installed in the plugin path as just described.

       2. The global plugins option in /etc/yum/yum.conf must be set to `1'.

       3.     A     configuration     file     for     the     plugin     must      exist      in
       /etc/yum/pluginconf.d/<plugin_name>.conf  and the enabled setting in this file must set to
       `1'. The minimal content for such a configuration file is:

              enabled = 1

       See the yum.conf(5) man page for more information on plugin related configuration options.




       pkcon (1)
       yum.conf (5)
       yum-updatesd (8)
       package-cleanup (1)
       repoquery (1)
       yum-complete-transaction (1)
       yumdownloader (1)
       yum-utils (1)
       yum search yum


       See the Authors file included with this program.


       There of course aren't any bugs, but if you find any, you should  first  consult  the  FAQ
       mentioned  above  and  then  email  the  mailing  list: or filed in