报错如下：
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed

/usr/bin/ssh-copy-id: ERROR: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
ERROR: @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
ERROR: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
ERROR: IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
ERROR: Someone could be eavesdropping on you right now (man-in-the-middle attack)!
ERROR: It is also possible that a host key has just been changed.
ERROR: The fingerprint for the ECDSA key sent by the remote host is
ERROR: SHA256:lPu68QRm+6kHeJaKpRODUSRdOlDJbJdf40EzvXta+XA.
ERROR: Please contact your system administrator.
ERROR: Add correct host key in /home/zephyr/.ssh/known_hosts to get rid of this message.
ERROR: Offending ECDSA key in /home/zephyr/.ssh/known_hosts:6
ERROR: ECDSA host key for [127.0.0.1]:2222 has changed and you have requested strict checking.
ERROR: Host key verification failed.
这是由于公钥改变而导致的无法复制。
解决方法：
打开~/.ssh/known_hosts删掉这个ip的那行，再运行一次，问题解决。