Debian更新软件源提示There is no public key available for the following key IDs的解决方法

今天装了的debian7.0

但是更新软件源的时候出错

提示

W: There is no public key available for the following key IDs:
9D6D8F6BC857C906
W: There is no public key available for the following key IDs:
7638D0442B90D010

百度查询到了解决方案

只需要执行

apt-get install debian-keyring debian-archive-keyring

即可