ssh-copy-id: ERROR: No identities found

\# ssh-copy-id -i /root/.ssh/id_dsa.pub "root@10.0.0.11 -p 22"
/usr/bin/ssh-copy-id: ERROR: No identities found

秘钥/root/.ssh/id_dsa.pub，不存在，使用ssh-keygen生成公钥