安装MySQL提示无法找到主机，怎么回事？

[cnonline]

抓图在此
http://www.8885.net/uploadImages/200322111165991321.png

提示
Sorry, the host 'test' could not be looked up.
Please configure the 'hostname' command to return a correct hostname.

执行hostname命令显示
test

。初接触Linux，还望大侠指点迷津。

[cnonline]

thank u!

[mathe]

try
ping test

if it fails, add
127.0.0.1 test
into /etc/hosts