进入 源文件夹下载适用于CentOS/RHEL引导源
# cd /etc/yum.repos.d/
# wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo
安装EPEL ,EPEL是yum的一个软件源,里面包含了许多基本源里没有的软件,因为是centos7所以选择第一句
CentOS/RHEL 7, 64 Bit (x86_64):
# rpm -Uvh http://epel.mirror.net.in/epel/7/x86_64/e/epel-release-7-9.noarch.rpm
CentOS/RHEL 6, 64 Bit (x86_64):
# rpm -Uvh http://e...
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