1. 在修改前先备份该文件
cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
2. 修改更新源配置文件(CentOS6地址,其他版本类似)
vim打开配置文件:
vim /etc/yum.repos.d/CentOS-Base.repo
复制以下内容粘贴到配置文件中进行:
# 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-$releasever - Base
baseurl=http://mirrors.oschina.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
[updates]
name=CentOS-$releasever - Updates
baseurl=http://mirrors.oschina.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
[addons]
name=CentOS-$releasever - Addons
baseurl=http://mirrors.oschina.com/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
[extras]
name=CentOS-$releasever - Extras
baseurl=http://mirrors.oschina.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://mirrors.oschina.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
最后保存配置文件。
3. 更新yum源配置
yum update
1、更换 yum 源的原因
国外网站连接响应太慢
国内 yum 源响应速度快
2、国内 yum 源
阿里云 yum 源
清华大学 yum 源
中科大 yum 源
网易 yum 源
3、更换清华大学 yum 源
1)建议先备份 CentOS-Base.repo
sudo cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
然后编辑 /etc/yum.repos.d/CentOS-Base.repo 文件,在以 mirrorlist= 开头的行前面加 # 注释掉;
并将以 baseurl= 开头的行取消注释(如果被注释的话),把该行内的域名(例如mirror.centos.org)替换为 mirrors.tuna.tsinghua.edu.cn。
2)实际 *** 作
[root@shell ~]#
[root@shell ~]# cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
[root@shell ~]#
[root@shell ~]# vi /etc/yum.repos.d/CentOS-Base.repo
修改说明:
yum源配置总共有4项,但是更改方式都一样。都是将每一小块以“mirrorlist=”开头的那一行注释掉,然后将每一小块以“baseurl= ”开头的那一行前面的注释取消,最后将每一小块以“baseurl= ”开头的那一行内的centos官方域名(mirror.centos.org)更换为清华大学的域名(mirrors.tuna.tsinghua.edu.cn)即可
清华大学 yum 源配置实例:
[root@shell ~]#
[root@shell ~]# yum clean all #清空yum缓存
[root@shell ~]# yum makecache #更新yum源缓存
[root@shell ~]# yum repolist
[root@shell ~]#
[root@shell ~]# yum list httpd mariadb php
您好,很高兴为您解答。
1.检查是否安装yum包
查看RHEL是否安装了yum,若是安装了,那么又有哪些yum包:
[root@localhost ~]# rpm -qa |grep yum
yum-metadata-parser-1.0-8.fc6
yum-3.0.1-5.el5
yum-rhn-plugin-0.4.3-1.el5
yum-updatesd-3.0.1-5.el5
2 删除redhat自带的yum包
卸载上面显示的所有yum包:
[root@localhost ~]# rpm -qa|grep yum|xargs rpm -e --nodeps(不检查依赖,直接删除rpm包)
再用
[root@localhost ~]# rpm -qa |grep yum
[root@localhost ~]#
查看,无信息显示表示已经卸载完成。
3.下载新的yum包。使用Centos6.5的yum包
# wget http://mirrors.163.com/centos/6.5/os/i386/Packages/yum-metadata-parser-1.1.2-16.el6.i686.rpm# wget http://mirrors.163.com/centos/6.5/os/i386/Packages/yum-3.2.29-40.el6.centos.noarch.rpm
# wget http://mirrors.163.com/centos/6.5/os/i386/Packages/yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm
安装yum软件包
注意:单个的安装包可能会依赖其它包(例如yum和yum-fastestmirror会相互依赖),所以我们可以把所有这些包放在一起,用一行命令将它们同时安装即可:
# rpm -ivh yum-metadata-parser-1.1.2-16.el6.i686.rpm yum-3.2.29-40.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm4.更换yum源。使用163的源
# cd /etc/yum.repos.d/# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
# vi CentOS6-Base-163.repo
编辑文件,把文件里面的$releasever全部替换为版本号,即6.5 最后保存!或者直接把下面的内存拷贝到CentOS6-Base-163.repo文件中即可(已经修改好)
# 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-6.5 - Base - 163.com
baseurl=http://mirrors.163.com/centos/6.5/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-6.5 - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6.5/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-6.5 - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6.5/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6.5 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/6.5/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
[contrib]
name=CentOS-6.5 - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/6.5/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
5.清除原有缓存
# yum clean all重建缓存,以提高搜索安装软件的速度
# yum makecache
6.更新系统
# yum update如若满意,请点击右侧【采纳答案】,如若还有问题,请点击【追问】
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