[root@EZD3 yum.repos.d]# yum clean all
Cleaning up Everything
0 headers removed
0 packages removed
21 metadata files removed
0 cache files removed
7 cache files removed
You have new mail in /var/spool/mail/root
[root@EZD3 yum.repos.d]# yum list mysql
Setting up repositories
dag                       100% |=========================| 1.1 kB    00:00
testing                   100% |=========================|  951 B    00:00
update                    100% |=========================|  951 B    00:00
base                      100% |=========================| 1.1 kB    00:00
centosplus                100% |=========================|  951 B    00:00
addons                    100% |=========================|  951 B    00:00
extras                    100% |=========================| 1.1 kB    00:00
Reading repository metadata in from local files
primary.xml.gz            100% |=========================| 1.5 MB    00:12
dag       : ################################################## 4392/4392
Added 4392 new packages, deleted 0 old in 25.81 seconds
primary.xml.gz            100% |=========================|  157 B    00:00
Added 0 new packages, deleted 0 old in 0.01 seconds
primary.xml.gz            100% |=========================|  58 kB    00:00
update    : ################################################## 138/138
Added 138 new packages, deleted 0 old in 1.36 seconds
primary.xml.gz            100% |=========================| 554 kB    00:04
base      : ################################################## 1450/1450
Added 1450 new packages, deleted 0 old in 10.11 seconds
primary.xml.gz            100% |=========================|  50 kB    00:00
centosplus: ################################################## 186/186
Added 186 new packages, deleted 0 old in 1.59 seconds
primary.xml.gz            100% |=========================|  157 B    00:00
Added 0 new packages, deleted 0 old in 0.00 seconds
primary.xml.gz            100% |=========================|  45 kB    00:00
extras    : ################################################## 204/204
Added 204 new packages, deleted 0 old in 1.24 seconds
Installed Packages
mysql.i386                               4.1.20-1.RHEL4.1       installed
[root@EZD3 yum.repos.d]# cat CentOS-Base.repo
[base]
name=CentOS-$releasever - Base
baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1

#released updates
[update]
name=CentOS-$releasever - Updates
baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1

#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons
baseurl=http://mirror.centos.org/centos/$releasever/addons/$basearch/
gpgcheck=1

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=1

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
baseurl=http://mirror.centos.org/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0

#packages in testing
[testing]
name=CentOS-$releasever - Testing
baseurl=http://mirror.centos.org/centos/$releasever/testing/$basearch/
gpgcheck=1
enabled=1