Linux yum源配置

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本文介绍Red Hat下yum源配置方法，Redhat使用yum网络源需要购买服务，但是本地yum源不会收费。

CentOS用户自带yum源，并且yum不收费。

准备工具：

1、安装机器时的镜像

2、VMware机器设置里CD/DVD选项，勾选已连接和开机自动连接

步骤：

1、首先编写yum源的repo文件，存放路径 /etc/yum.repos.d/，以repo结尾，名字任意命名

格式如下：

[rhel7.4] 是用于区别各个不同的仓库，名字不能和其他的仓库名字重复
name= 对仓库的描述，
baseurl= 路径
enable= 是否启用，1启用 0关闭
gpgcheck= 是否验证，1启用，0关闭

按照这个格式配置，就可以使用yum仓库了，其他更深入的功能见后边更新讲解

[root@localhost ~]# vim /etc/yum.repos.d/rhel.repo [rhel7.4]
name=RedHat_Enterprise_linux_7.4
baseurl=file:///iso
enable=1
gpgcheck=0

2、挂载镜像

首先创建一个挂载点，因为上边配置文件里写的是根目录下的iso目录，所以在根下边创建一个/iso

mkdir /iso

挂载
[root@localhost ~]# mount /dev/cdrom /iso/
mount: /dev/sr0 is write-protected, mounting read-only可以看到已经挂载成功
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rhel-root 10G 7.7G 2.4G 77% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 8.9M 1.9G 1% /dev/shm
tmpfs 1.9G 9.2M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mapper/rhel-usr 35G 24G 12G 68% /usr
/dev/sda1 1014M 145M 870M 15% /boot
/dev/mapper/rhel-tmp 4.0G 60M 4.0G 2% /tmp
/dev/mapper/rhel-opt 4.0G 559M 3.5G 14% /opt
/dev/mapper/rhel-var 8.0G 5.0G 3.1G 63% /var
tmpfs 378M 0 378M 0% /run/user/0
/dev/sr0 3.8G 3.8G 0 100% /iso当/iso出现以下内容，表明挂载成功
[root@localhost ~]# ls /iso/
addons GPL media.repo RPM-GPG-KEY-redhat-release
EFI images Packages TRANS.TBL
EULA isolinux repodata
extra_files.json LiveOS RPM-GPG-KEY-redhat-beta

查看仓库

[root@localhost ~]# yum repolist
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.
repo id repo name status
rhel7.4 RedHat_Enterprise_linux_7.4 4,986
repolist: 4,986

安装服务测试一下

[root@localhost ~]# yum install vsftpd
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.
Resolving Dependencies
--> Running transaction check
---> Package vsftpd.x86_64 0:3.0.2-22.el7 will be installed
--> Finished Dependency ResolutionDependencies Resolved=========================================================================================
Package Arch Version Repository Size
=========================================================================================
Installing:
vsftpd x86_64 3.0.2-22.el7 rhel7.4 169 kTransaction Summary
=========================================================================================
Install 1 PackageTotal download size: 169 k
Installed size: 348 k
Is this ok [y/d/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : vsftpd-3.0.2-22.el7.x86_64 1/1
Verifying : vsftpd-3.0.2-22.el7.x86_64 1/1 Installed:
vsftpd.x86_64 0:3.0.2-22.el7 Complete!