$\curl -L https://get.rvm.io | bash -s stable --without-gems="rvm rubygems-bundler"
curl: (60) SSL certificate problem, verify that the CA cert is OK. Details: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed More details here: http://curl.haxx.se/docs/sslcerts.html curl performs SSL certificate verification by default, using a "bundle" of Certificate Authority (CA) public keys (CA certs). The default bundle is named curl-ca-bundle.crt; you can specify an alternate file using the --cacert option. If this HTTPS server uses a certificate signed by a CA represented in the bundle, the certificate verification probably failed due to a problem with the certificate (it might be expired, or the name might not match the domain name in the URL). If you'd like to turn off curl's verification of the certificate, use the -k (or --insecure) option.
curl http://curl.haxx.se/ca/cacert.pem > /etc/pki/tls/certs/ca-bundle.crt.new
mv /etc/pki/tls/certs/ca-bundle.crt /etc/pki/tls/certs/ca-bundle.crt.old
mv /etc/pki/tls/certs/ca-bundle.crt.new /etc/pki/tls/certs/ca-bundle.crt
curl url –cacert cacert.pem 方式指定调用