Linux yum源详解

软件包安装方式

0.默认从官网下载包(国内，雅虎，网易，阿里云)
cat /etc/yum.repos.d/rhel-source.repo 【yum文件目录--redhat6版】

【搜狐】http://mirrors.sohu.com/help/CentOS-Base-sohu.repo
【网易】http://mirrors.163.com/.help/CentOS6-Base-163.repo
【阿里】https://mirrors.aliyun.com/help/centos

1.yum : Linux包管理器，解决依赖问题，方便快捷

        yum install XXX -y 
        yum groupinstall XXX 包组的列表  -y
        yum grouplist 里面选择包组，然后yum groupinstall "包组" -y
        yum search  包名
        yum search all  查询所有
        yum remove tree -y  删除命令(不建议用，因为yum可以解决依赖问题，删除会删除所有包的依赖)
        yum update; 安装所有软件到最新版本

2. rpm安装：

        rpm -ivh 包名  i==install h==human 人可读
        rpm -ivh 包名 安装软件
        rpm -qa  包名 查询包名
        最大的问题：就是安装包的依赖问题(a->b->c->d)

3.源码安装:

 /configure; make; make install  源代码安装方式

在线安装配置yum源

# 查看操作系统版本
cat /etc/redhat-release
# 查看操作系统32/64位
uname -m
# 进入yum文件目录
cd /etc/yum.repos.d
# 备份源文件
cp CentOS-Base.repo CentOS-Base.repo.bak 
# 下载网易yum源

wget http://mirrors.163.com/.help/CentOS6-Base-163.repo 【网易】
#【可选】下载阿里yum源

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo  【阿里】

# 更改权限和属组
chmod 644 CentOS6-Base-163.repo
chown root.root CentOS6-Base-163.repo
附[可选]：如果还是用不了yum,可以替换文件内的版本信息为你当前操作系统的版本，一般没问题的
# 替换文件的版本信息
sed -i 's/$releasever/6/g' CentOS6-Base-163.repo

配置yum安装保存安装包

# 更改配置文件
sed -i 's#keepcache=0#keepcache=1#g' /etc/yum.conf 
# 进入路径下查看安装包
cd /var/cache/yum/*/6/base/packages/
# 查看更改后的文件信息

grep 'keep' /etc/yum.conf

附网易yum源：

# 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-$releasever - Base - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#released updates 
[updates]
name=CentOS-$releasever - Updates - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&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-$releasever - Extras - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&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-$releasever - Plus - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&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-$releasever - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

软件包安装方式

在线安装配置yum源

配置yum安装保存安装包

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