Wednesday, July 13, 2011

Yum groups and repositories

Yum supports the group commands
  • grouplist
  • groupinfo
  • groupinstall
  • groupremove
  • groupupdate
Groups are read from the "group" xml metadata that is optionally available from each repository. If yum has no repositories which support groups then none of the group operations will work.
  • grouplist
    yum grouplist [hidden]
This will list the installed and available groups for your system in two separate lists. If you pass the optional 'hidden' argument then all of the groups which are set to 'no' in the group xml tag.
  • groupinfo
    yum groupinfo groupname
This will give you detailed information for each group including: description, mandatory, default and optional packages.
  • groupinstall, groupupdate
    yum groupinstall groupname
         yum groupupdate groupname
Despite their differing names both of these commands perform the same function. They will attempt to install/update all of the packages in the group that are of the types 'default' or 'mandatory' (by default). (To change this types of packages edit the value of the group_package_types option in yum.conf.) And they will install any additional dependencies needed by any of the installing/updating packages.
  • groupremove
    yum groupremove groupname
This will remove all packages, of any type, in the named group. It will also remove any package that depends on any of these packages.

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