root@VM-116-216-ubuntu:/opt/hadoop-1.2.1/bin# start-all.sh
namenode running as process 14179. Stop it first.
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:
root@localhost's password: localhost: Permission denied, please try again.

root@localhost's password: localhost: Permission denied, please try again.

localhost: Permission denied (publickey,password).
jobtracker running as process 14408. Stop it first.
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@VM-116-216-ubuntu:/opt/hadoop-1.2.1/bin#