我正在做：
aws iam upload-server-certificate --server-certificate-name MysiteCertificate --certificate-body Downloads/mysite/mysite.crt --private-key mysite.pem --certificate-chain Downloads/mysite/COMODOSSLCA.crt
我收到一个错误： A client error (MalformedCertificate) occurred when calling the UploadServerCertificate operation: Unable to parse certificate. Please ensure the certificate is in PEM format.
pem虽然它是一个有效的文件 =(