Linux yum配置
本地yum源,首先挂载iso文件,确保光盘挂载点有文件
如果在配置yum源过程中遇到yum被another app lock使用下面命令
rm -f /var/run/yum.pid
创建挂载点
mkdir -p /mnt/local
将iso文件挂载到指定挂载点
mount /dev/cdrom /mnt/local
[root@xuexi yum.repos.d]# ls /mnt/local
CentOS_BuildTag EULA images LiveOS repodata RPM-GPG-KEY-CentOS-Testing-7
EFI GPL isolinux Packages RPM-GPG-KEY-CentOS-7 TRANS.TBL
2、yum的一切配置信息都存储在一个叫yum.repos.d目录下的配置文件中。所以跳转到/etc/yum.repos.d目录下
cd /etc/yum.repos.d
3、创建一个新的yum源配置文件,yum源配置文件的结尾必须是.repo
vim CentOS7.repo
内容如下:
[CentOS7] //yum的ID,本地唯一,用于区分不同yum源
name=CentOS-server //描述信息
baseurl=file:///mnt/local //前面的file://是协议,
后面的/mnt是光盘挂载点
enabled=1 //1启用yum源,0禁用yum源
gpgcheck=0 //1使用公钥验证rpm包的正确性,0不验证
保存退出后就可以开始验证了。
如果启用公钥验证,需要配置公钥gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
4、接着清空yum已存在的源信息(缓存)
yum clean all
yum makecache
yum repolist //验证local yum源是否配置成功
[root@localhost yum.repos.d]# yum clean all
Loaded plugins: fastestmirror, langpacks
Cleaning repos: centos7
Cleaning up list of fastest mirrors
Other repos take up 865 M of disk space (use --verbose for details)
[root@localhost yum.repos.d]# yum makecache
Loaded plugins: fastestmirror, langpacks
Determining fastest mirrors
centos7 | 3.6 kB 00:00:00
(1/4): centos7/group_gz | 153 kB 00:00:00
(2/4): centos7/filelists_db | 3.3 MB 00:00:01
(3/4): centos7/primary_db | 3.3 MB 00:00:00
(4/4): centos7/other_db | 1.3 MB 00:00:00
Metadata Cache Created
[root@localhost yum.repos.d]# yum re
reinstall remove repolist
[root@localhost yum.repos.d]# yum repolist
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
repo id repo name status
centos7 centos7 4,070
repolist: 4,070
[root@localhost yum.repos.d]# yum mdadm
Loaded plugins: fastestmirror, langpacks
No such command: mdadm. Please use /usr/bin/yum --help
[root@localhost yum.repos.d]# yum install mdadm
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Package mdadm-4.1-6.el7.x86_64 already installed and latest version
Nothing to do
[root@localhost yum.repos.d]#
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