安装docker的时候报错需要libc.so.6

atuhufc57156@12

Loaded plugins: fastestmirror, langpacks
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
Existing lock /var/run/yum.pid: another copy is running as pid 11946.
Another app is currently holding the yum lock; waiting for it to exit...

此种错误应该怎么解决？