root@cjw:/opt/hadoop-1.2.1/bin# start-all.shWarning: $HADOOP_HOME is deprecated.starting namenode, logging to /opt/hadoop-1.2.1/libexec/../logs/hadoop-root-namenode-cjw.outThe authenticity of host 'localhost (127.0.0.1)' can't be established.ECDSA key fingerprint is fa:0f:0c:4b:38:36:af:f6:a3:54:65:d1:1d:36:98:35.Are you sure you want to continue connecting (yes/no)? yPlease type 'yes' or 'no': yeslocalhost: Warning: Permanently added 'localhost' (ECDSA) to the list of known hosts.root@localhost's password:?localhost: Permission denied, please try again.root@localhost's password:?localhost: Permission denied, please try again.root@localhost's password:?localhost: Permission denied (publickey,password).root@localhost's password:?localhost: Connection closed by UNKNOWN我輸入了root用戶的密碼,但是還是錯誤,不知道為什么!!!!!!!!!!!!!