[root@pantera ~]# cat /etc/yum.conf
#------------------------------------------------------------
# !!DO NOT MODIFY THIS FILE!!
#
# Manual changes will be lost when this file is regenerated.
#
# Please read the developer's guide, which is available
# at http://wiki.contribs.org/development/
#
# Copyright (C) 1999-2006 Mitel Networks Corporation
#------------------------------------------------------------
[main]
cachedir=/var/cache/yum
debuglevel=2
distroverpkg=centos-release
exactarch=1
http_caching=packages
installonlypkgs=kernel kernel-smp kernel-hugemem kernel-enterprise kernel-debug kernel-unsupported kernel-smp-unsupported kernel-hugemem-unsupported
logfile=/var/log/yum/yum.log
obsoletes=1
plugins=1
reposdir=
tolerant=1
[addons]
enabled=0
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
#baseurl=http://mirror.centos.org/centos/4/addons/$basearch
name=CentOS - addons
gpgcheck=1
enablegroups=0
[base]
enabled=1
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
#baseurl=http://mirror.centos.org/centos/4/os/$basearch
name=CentOS - os
gpgcheck=1
enablegroups=0
exclude=kernel kernel-smp mkinitrd mdadm initscripts
[centosplus]
enabled=0
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
#baseurl=http://mirror.centos.org/centos/4/centosplus/$basearch
name=CentOS - centosplus
gpgcheck=1
enablegroups=0
[contrib]
enabled=0
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
#baseurl=http://mirror.centos.org/centos/4/contrib/$basearch
name=CentOS - contrib
gpgcheck=1
enablegroups=0
[dungog]
enabled=1
baseurl=http://sme.dungog.net/packages/smeserver/7.0/i386/dungog/
name=SME Server 7 - dungog
gpgcheck=0
enablegroups=1
[extras]
enabled=0
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
#baseurl=http://mirror.centos.org/centos/4/extras/$basearch
name=CentOS - extras
gpgcheck=1
enablegroups=0
[smeaddons]
enabled=1
mirrorlist=file:///etc/yum.repos.d/mirrors-smeaddons
#baseurl=http://mirror.contribs.org/smeserver/releases/7/smeaddons/$basearch
name=SME Server - addons
gpgcheck=1
enablegroups=1
[smedev]
enabled=0
mirrorlist=file:///etc/yum.repos.d/mirrors-smedev
#baseurl=http://mirror.contribs.org/smeserver/releases/7/smedev/$basearch
name=SME Server - dev
gpgcheck=1
enablegroups=1
[smeos]
enabled=1
mirrorlist=file:///etc/yum.repos.d/mirrors-smeos
#baseurl=http://mirror.contribs.org/smeserver/releases/7/smeos/$basearch
name=SME Server - os
gpgcheck=1
enablegroups=1
[smetest]
enabled=0
mirrorlist=file:///etc/yum.repos.d/mirrors-smetest
#baseurl=http://mirror.contribs.org/smeserver/releases/7/smetest/$basearch
name=SME Server - test
gpgcheck=1
enablegroups=1
[smeupdates]
enabled=1
mirrorlist=file:///etc/yum.repos.d/mirrors-smeupdates
#baseurl=http://mirror.contribs.org/smeserver/releases/7/smeupdates/$basearch
name=SME Server - updates
gpgcheck=1
enablegroups=1
[smeupdates-testing]
enabled=0
mirrorlist=file:///etc/yum.repos.d/mirrors-smeupdates-testing
#baseurl=http://mirror.contribs.org/smeserver/releases/7/smeupdates-testing/$basearch
name=SME Server - updates testing
gpgcheck=1
enablegroups=1
[updates]
enabled=1
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
#baseurl=http://mirror.centos.org/centos/4/updates/$basearch
name=CentOS - updates
gpgcheck=1
enablegroups=0
exclude=kernel kernel-smp mkinitrd mdadm initscripts
Enjoy!
Jáder
BTW:A tip: You should use teh template system so you never get on this situations again.