解决方法:
# sudo vim /etc/resolv.conf
修改服务器:
options timeout:2attempts:3 rotate single-request-reopen; Generated by/ usr / SBIN / dhclient script#nameserver 100.100.2.138#nameserver 100.100.2.136nameserver 8.8.8.8nameserver 8.8.8.4
最后再次下载即可解决无法解析主机地址的问题