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Linux基础入门教程-RHEL7.4之YUM更换CentOS源

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Linux基础入门教程RHEL7.4之YUM更换CentOS源

1.配置YUM本地源

1.挂载镜像
[root@linuxidc ~]# mount /dev/cdrom /mnt

2.查看是否挂载成功
[root@linuxidc ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3        49G  1.3G  48G  3% /
devtmpfs        479M    0  479M  0% /dev
tmpfs          489M    0  489M  0% /dev/shm
tmpfs          489M  6.6M  482M  2% /run
tmpfs          489M    0  489M  0% /sys/fs/cgroup
/dev/sda1      497M  112M  385M  23% /boot
tmpfs            98M    0  98M  0% /run/user/0
/dev/sr0        3.8G  3.8G    0 100% /mnt

3.备份原来的仓库
[root@linuxidc ~]# cp -r /etc/yum.repos.d /etc/yum.repos.d_bak
[root@linuxidc ~]# rm -f /etc/yum.repos.d/*

4.创建新的repo配置文件
[root@linuxidc ~]# vi /etc/yum.repos.d/dvd.repo

[dvd]
name=install dvd
baseurl=file:///mnt
enabled=1
gpgcheck=0

5.刷新repos生成缓存
[root@linuxidc ~]# yum makecache
Loaded plugins: product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
dvd                                                                            | 4.1 kB  00:00:00   
(1/5): dvd/group_gz                                                            | 137 kB  00:00:00   
(2/5): dvd/filelists_db                                                        | 3.4 MB  00:00:00   
(3/5): dvd/primary_db                                                          | 4.0 MB  00:00:00   
(4/5): dvd/other_db                                                            | 1.5 MB  00:00:00   
(5/5): dvd/productid                                                          | 1.6 kB  00:00:00   
Metadata Cache Created

 

2.使用CentOS源

1.卸载红帽yum
[root@linuxidc Packages]# rpm -e $(rpm -qa | grep yum) –nodeps
[root@linuxidc Packages]# echo $?
0

2.删除yum相关文件
[root@linuxidc Packages]# rm -rf /etc/yum.conf
[root@linuxidc Packages]# rm -rf /etc/yum.repos.d/*
[root@linuxidc Packages]# rm -rf /var/cache/yum

3.下载CentOS相关yum组件
wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/yum-3.4.3-158.el7.centos.noarch.rpm
wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm
wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/yum-updateonboot-1.1.31-45.el7.noarch.rpm
wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/yum-utils-1.1.31-45.el7.noarch.rpm
wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/python-kitchen-1.1.1-5.el7.noarch.rpm
wget https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/x86_64/Packages/python-chardet-2.2.1-1.el7_1.noarch.rpm
[root@linuxidc ~]# rpm -ivh *.rpm
warning: Python-chardet-2.2.1-1.el7_1.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing…                          ################################# [100%]
Updating / installing…
  1:yum-metadata-parser-1.1.4-10.el7 ################################# [ 14%]
  2:yum-plugin-fastestmirror-1.1.31-4################################# [ 29%]
  3:yum-3.4.3-158.el7.centos        ################################# [ 43%]
  4:python-chardet-2.2.1-1.el7_1    ################################# [ 57%]
  5:python-kitchen-1.1.1-5.el7      ################################# [ 71%]
  6:yum-utils-1.1.31-45.el7          ################################# [ 86%]
  7:yum-updateonboot-1.1.31-45.el7  ################################# [100%]
[root@linuxidc ~]#

4.创建新的repo文件
[base]
name=CentOS-7 – Base
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/7/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=7&arch=$basearch&repo=os
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-7 – Updates
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/7/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=7&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-7 – Extras
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/7/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=7&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-7 – Plus
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/7/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=7&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

5.使用yum makecache刷新生成缓存
[root@linuxidc ~]# yum makecache
Loaded plugins: fastestmirror, product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Loading mirror speeds from cached hostfile
base                                                                          | 3.6 kB  00:00:00   
extras                                                                        | 3.4 kB  00:00:00   
updates                                                                        | 3.4 kB  00:00:00   
(1/12): base/x86_64/group_gz                                                  | 166 kB  00:00:06   
(2/12): base/x86_64/primary_db                                                | 5.9 MB  00:00:02   
(3/12): base/x86_64/filelists_db                                              | 6.9 MB  00:00:08   
(4/12): base/x86_64/other_db                                                  | 2.5 MB  00:00:01   
(5/12): extras/x86_64/prestodelta                                              |  68 kB  00:00:06   
(6/12): extras/x86_64/primary_db                                              | 173 kB  00:00:00   
(7/12): extras/x86_64/other_db                                                | 110 kB  00:00:00   
(8/12): extras/x86_64/filelists_db                                            | 588 kB  00:00:06   
(9/12): updates/x86_64/prestodelta                                            | 409 kB  00:00:06   
(10/12): updates/x86_64/filelists_db                                          | 2.4 MB  00:00:07   
(11/12): updates/x86_64/other_db                                              | 381 kB  00:00:00   
(12/12): updates/x86_64/primary_db                                            | 4.3 MB  00:00:01   
Metadata Cache Created

6.epel扩展源

首先从CentOS Extras这个源(tuna也有镜像)里安装epel-release:
yum install epel-release -y

编辑epel.repo
[epel]
name=Extra Packages for Enterprise Linux 7 – $basearch
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/7/$basearch
#mirrorlist=https://mirrors.Fedoraproject.org/metalink?repo=epel-7&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7

[epel-debuginfo]
name=Extra Packages for Enterprise Linux 7 – $basearch – Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/7/$basearch/debug
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-7&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1

[epel-source]
name=Extra Packages for Enterprise Linux 7 – $basearch – Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/7/SRPMS
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-source-7&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1

这些做完以后要删除/etc/pki/rpm-gpg/的文件
 把epel中新的文件下载放入其中
[root@linuxidc ~]# ls /etc/pki/rpm-gpg/
RPM-GPG-KEY-EPEL-7
RPM-GPG-KEY-CentOS-7

更多YUM相关教程见以下内容

RHEL7 本地yum源配置 https://www.linuxidc.com/Linux/2017-01/139140.htm
CentOS 6.5 配置本地Yum源  https://www.linuxidc.com/Linux/2017-04/143127.htm
CentOS 7 使用阿里云的yum源、PIP源 https://www.linuxidc.com/Linux/2017-01/13966.htm
CentOS及Red Hat Linux安装yum源  https://www.linuxidc.com/Linux/2017-02/140205.htm
CentOS 7更改yum源与更新系统 https://www.linuxidc.com/Linux/2017-01/140067.htm
RedHat7.0配置本地yum源  https://www.linuxidc.com/Linux/2017-01/139148.htm
RedHat Linux 7安装CentOS 7 yum源  https://www.linuxidc.com/Linux/2017-04/142444.htm
软件包管理之前端管理工具yum  https://www.linuxidc.com/Linux/2017-02/140270.htm
CentOS 7 使用阿里云的yum源、PIP源 https://www.linuxidc.com/Linux/2017-01/13966.htm
Linux yum的配置使用和程序包的编译安装  https://www.linuxidc.com/Linux/2017-09/146903.htm
YUM命令使用示例  https://www.linuxidc.com/Linux/2018-01/150690.htm


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