大数据学习七：yum源替换(centos7)

1、查看当前系统版本

#lsb_release -a

若出现command not found 的错误，则

# yum -y install redhat-lsb

2、设置网卡eth0，centos7中/etc/sysconfig/network-scripts中没有ifcfg-eth0,只有ifcfg-ens33

#cd /etc/sysconfig/network-scripts

#mv ifcfg-ens33 ifcfg-eth0

#vi ifcfg-eth0,修改NAME=eth0

#vi /etc/default/grub,在GRUB_CMDLINE_LINUX变量中增加net.ifnames=0 biosdevname=0

#grub2-mkconfig -o /boot/grub2/grub.cfg

#reboot

3、备份原yum数据源

#mv /etc/yum.repos.d/CentOS-base.repo /etc/yum.repos.d/CentOS-base.repo.back

4、下载对应版本repo,放入/etc/yum.repos.d

http://mirrors.163.com/.help/CentOS7-Base-163.repo

http://mirrors.163.com/.help/CentOS6-Base-163.repo

http://mirrors.163.com/.help/CentOS5-Base-163.repo

5、使yum源生效

#yum clean all

#yum makecache