环境
- 系统：Red Hat Enterprise Linux Server release 7.5 (Maipo)
- 测试yum能否使用：
[root@localhost ~]# yum install tree
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
There are no enabled repos.
Run "yum repolist all" to see the repos you have.
To enable Red Hat Subscription Management repositories:
subscription-manager repos --enable <repo>
To enable custom repositories:
yum-config-manager --enable <repo>可以看出yum无法使用。（Redhat只有在注册了之后才可以使用yum，我们替换为centos的yum源）
操作
- 检查是否安装yum包
[root@localhost ~]# rpm -qa | grep yum
yum-utils-1.1.31-45.el7.noarch
yum-rhn-plugin-2.0.1-10.el7.noarch
PackageKit-yum-1.1.5-1.el7.x86_64
yum-metadata-parser-1.1.4-10.el7.x86_64
yum-langpacks-0.4.2-7.el7.noarch
yum-3.4.3-158.el7.noarch
[root@localhost ~]# - 删除自带的yum包
[root@localhost ~]# rpm -qa|grep yum|xargs rpm -e --nodeps
warning: /etc/yum/pluginconf.d/langpacks.conf saved as /etc/yum/pluginconf.d/langpacks.conf.rpmsave
[root@localhost ~]#
[root@localhost ~]# rpm -qa | grep yum
[root@localhost ~]# - 下载yum包
- Yum包的下载地址：
阿里云网络源地址：https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/
网易163网络源地址：http://mirrors.163.com/
CentOS网络源地址：http://centos.ustc.edu.cn/centos/ - 操作
[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm
[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-163.el7.centos.noarch.rpm
[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-52.el7.noarch.rpm- 解压yum包
这里我的python-iniparse-0.4-9.el7之前已经安装了。
[root@localhost ~]# rpm -ivh python-iniparse-0.4-9.el7.noarch.rpm
warning: python-iniparse-0.4-9.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing... ################################# [100%]
package python-iniparse-0.4-9.el7.noarch is already installed
file /usr/lib/python2.7/site-packages/iniparse/ini.pyc from install of python-iniparse-0.4-9.el7.noarch conflicts with file from package python-iniparse-0.4-9.el7.noarch
file /usr/lib/python2.7/site-packages/iniparse/ini.pyo from install of python-iniparse-0.4-9.el7.noarch conflicts with file from package python-iniparse-0.4-9.el7.noarch
[root@localhost ~]# rpm -ivh yum-*
warning: yum-3.4.3-163.el7.centos.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:yum-metadata-parser-1.1.4-10.el7 ################################# [ 33%]
2:yum-plugin-fastestmirror-1.1.31-5################################# [ 67%]
3:yum-3.4.3-163.el7.centos ################################# [100%]- 替换yum源
[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# vim rhel-source.repo
#rhel-source.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-7 - Base - 163.com
baseurl=http://mirrors.163.com/centos/7/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7
#released updates
[updates]
name=CentOS-7 - Updates - 163.com
baseurl=http://mirrors.163.com/centos/7/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7
#additional packages that may be useful
[extras]
name=CentOS-7 - Extras - 163.com
baseurl=http://mirrors.163.com/centos/7/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7
- 清理并重建缓存
[root@localhost ~]# yum clean all
Loaded plugins: fastestmirror, langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Cleaning repos: base extras updates
[root@localhost ~]# yum makecache
Loaded plugins: fastestmirror, langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Determining fastest mirrors
base | 3.6 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/10): base/x86_64/group_gz | 165 kB 00:00:00
(2/10): base/x86_64/primary_db | 6.0 MB 00:00:01
(3/10): base/x86_64/filelists_db | 7.3 MB 00:00:02
(4/10): extras/x86_64/primary_db | 164 kB 00:00:00
(5/10): extras/x86_64/other_db | 107 kB 00:00:00
(6/10): base/x86_64/other_db | 2.6 MB 00:00:00
(7/10): extras/x86_64/filelists_db | 217 kB 00:00:00
(8/10): updates/x86_64/filelists_db | 4.5 MB 00:00:03
(9/10): updates/x86_64/other_db | 573 kB 00:00:00
(10/10): updates/x86_64/primary_db | 7.6 MB 00:00:05
Metadata Cache Created
[root@localhost ~]# yum update -y再次尝试使用yum安装tree：
到此，完成。