首先找到y(tǒng)um源的修改位置:/etc/yum.repos.d,進(jìn)入這個(gè)目錄,可以找到一個(gè)叫CentOS-Base.repo的文件,打開它:
[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
將mirrorlist注釋掉,打開baseurl,并將url換成新的即可。