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方法一：插入CentOS7光盘
1、挂载[root@CentOS ~]# mkdir /mnt/dvd[root@CentOS ~]# mount -t iso9660 /dev/sr0 /mnt/dvd2、安装[root@CentOS ~]# cd /mnt/dvd/Packages/[root@CentOS Packages]# ls yum wgetwget-1.14-10.el7_0.1.x86_64.rpmyum-3.4.3-132.el7.centos.0.1.noarch.rpmyum-langpacks-0.4.2-4.el7.noarch.rpmyum-metadata-parser-1.1.4-10.el7.x86_64.rpmyum-plugin-aliases-1.1.31-34.el7.noarch.rpmyum-plugin-changelog-1.1.31-34.el7.noarch.rpmyum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpmyum-plugin-tmprepo-1.1.31-34.el7.noarch.rpmyum-plugin-verify-1.1.31-34.el7.noarch.rpmyum-plugin-versionlock-1.1.31-34.el7.noarch.rpmyum-utils-1.1.31-34.el7.noarch.rpm[root@CentOS Packages]# rpm -ivh --nodeps yum[root@CentOS Packages]# rpm -ivh wget方法二：下载CentOS7镜像1、挂载[root@CentOS ~]# mkdir /mnt/dvd[root@CentOS ~]# mount -o loop -t iso9660 CentOS-7-x86_64-DVD-1511.iso/mnt/dvd2、安装[root@CentOS ~]# cd /mnt/dvd/Packages/[root@CentOS Packages]# ls yum wgetwget-1.14-10.el7_0.1.x86_64.rpmyum-3.4.3-132.el7.centos.0.1.noarch.rpmyum-langpacks-0.4.2-4.el7.noarch.rpmyum-metadata-parser-1.1.4-10.el7.x86_64.rpmyum-plugin-aliases-1.1.31-34.el7.noarch.rpmyum-plugin-changelog-1.1.31-34.el7.noarch.rpmyum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpmyum-plugin-tmprepo-1.1.31-34.el7.noarch.rpmyum-plugin-verify-1.1.31-34.el7.noarch.rpmyum-plugin-versionlock-1.1.31-34.el7.noarch.rpmyum-utils-1.1.31-34.el7.noarch.rpm[root@CentOS Packages]# rpm -ivh --nodeps yum[root@CentOS Packages]# rpm -ivh wget转载于:https://blog.51cto.com/11403002/2050087