使用Jason's Utter Ramblings Repo的yum源出现warning: rpmt

为了安装php-mcrypt扩展，使用了Jason's Utter Ramblings Repo的yum源，但在更新时出现问题：

Is this ok [y/N]: y

Downloading Packages:

warning: rpmts_HdrFromFdno: Header V3 DSA/SHA1 Signature, key ID e8562897: NOKEY

Retrieving key from http://www.jasonlitka.com/media/RPM-GPG-KEY-jlitka

The GPG keys listed for the "Jason's Utter Ramblings Repo" repository are already installed but they are not correct for this package.

Check that the correct key URLs are configured for this repository.

解决办法：

rpm --import http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5 

如果是低版本，可以使用

rpm --import http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-centos4