yum -y update 报错：GPG key retrieval failed: [Errno 14] Could not open/read file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

• 用的是centos6.5的镜像，yum源太老了,修改了之后想更新一下：

yum -y update

• 执行报错：

warning: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5


GPG key retrieval failed: [Errno 14] Could not open/read file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

• 解决方案
• vi /etc/yum.repos.d/CentOS-Base.repo
• 把文件里所有的RPM-GPG-KEY-CentOS-5更改为RPM-GPG-KEY-CentOS-6就可以了

:%s/RPM-GPG-KEY-CentOS-5/RPM-GPG-KEY-CentOS-6