[root@apenglinux-001 ~]# mount /dev/cdrom /mnt/
[root@apenglinux-001 yum.repos.d]# mv CentOS-Base.repo CentOS-Base.repo.bak
[root@apenglinux-001 yum.repos.d]# cp CentOS-Media.repo CentOS-Base.repo
[root@apenglinux-001 yum.repos.d]# vim CentOS-Base.repo
[c7-media]
name=CentOS-$releasever - Media
baseurl=file:///mnt/
gpgcheck=0
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
[root@apenglinux-001 yum.repos.d]# yum clean all
[root@apenglinux-001 yum.repos.d]# yum list
[root@apenglinux-001 yum.repos.d]# yum repolist all

yum更換國內源

#cd /etc/yum.repos.d
#mv CentOS-Base.repo CentOS-Base.repo.bak
#curl -O http://mirrors.163.com/.help/CentOS7-Base-163.repo
#yum clean all
#yum list
#yum repolist all

yum安裝擴展源

[root@apenglinux-001 yum.repos.d]# yum install epel-release -y

yum下載rpm包

[root@apenglinux-001 ~]# yum install zsh --downloadonly

[root@apenglinux-001 ~]# yum install zsh --downloadonly --downloaddir=/usr/local/src/

[root@apenglinux-001 ~]# yum reinstall vim-enhanced --downloadonly --downloaddir=/usr/local/src/

linux-yum