CentOS comps files have duplicate entries. On fedora documentation there is example how to clean up comps file: http://fedoraproject.org/wiki/How_to_use_and_edit_comps.xml_for_package_groups#How_to_edit_comps comps-cleanup.xsl in comps-extras package is unfortunately not complete and removes necessary <environment> tags. There is a better version in fedora git: https://git.fedorahosted.org/cgit/comps.git/tree/ But that introduces minor disorder of the fields in the file. I attached here cleaned up version which produces correct alphabetic order. -- Tuomo Soini <tis at foobar.fi> Foobar Linux services +358 40 5240030 Foobar Oy <http://foobar.fi/> -------------- next part -------------- A non-text attachment was scrubbed... Name: comps-cleanup.xsl Type: application/xml Size: 9201 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos-devel/attachments/20140919/c4beb3dc/attachment-0007.xsl>