CentOS 5.11 yum -y更新错误

Question

我已经设置了docker，我正在使用docker file

中的命令来放置centos

FROM centos:5.11

当我登录centos并输入yum -y更新时，我收到以下错误：

yum -y update

Loaded plugins: fastestmirror
Determining fastest mirrors
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
 Eg. Invalid release/
removing mirrorlist with no valid mirrors: /var/cache/yum/base/mirrorlist.txt
Error: Cannot find a valid baseurl for repo: base

我尝试了这个网站的建议 YumRepo Error: All mirror URLs are not using ftp, http[s] or file