[centos]centos6更换源的正确方法

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#
 
[base]
name=CentOS-6.9 - Base
#mirrorlist=http://mirrorlist.centos.org/?release=6.9&arch=$basearch&repo=os&infra=$infra
baseurl=http://mirror.nsc.liu.se/centos-store/6.9/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
 
#released updates 
[updates]
name=CentOS-6.9 - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=6.9&arch=$basearch&repo=updates&infra=$infra
baseurl=http://mirror.nsc.liu.se/centos-store/6.9/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
 
#additional packages that may be useful
[extras]
name=CentOS-6.9 - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=6.9&arch=$basearch&repo=extras&infra=$infra
baseurl=http://mirror.nsc.liu.se/centos-store/6.9/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
 
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6.9 - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=6.9&arch=$basearch&repo=centosplus&infra=$infra
baseurl=http://mirror.nsc.liu.se/centos-store/6.9/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
 
#contrib - packages by Centos Users
[contrib]
name=CentOS-6.9 - Contrib
#mirrorlist=http://mirrorlist.centos.org/?release=6.9&arch=$basearch&repo=contrib&infra=$infra
baseurl=http://mirror.nsc.liu.se/centos-store/6.9/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6