While installing hadoop, When I run start-dfs.sh command it shows me no such file or directory found : [enter image description here][1]


  [1]: https://i.stack.imgur.com/AG86h.png

[root@nn1 hadoop-2.9.0]# ./sbin/start-dfs.sh
Starting namenodes on [nn1]
nn1: namenode running as process 2707. Stop it first.
nn1: datanode running as process 2859. Stop it first.
dn1: bash: line 0: cd: /home/user1/hadoop-2.9.0: No such file or directory
dn1: bash: /home/user1/hadoop-2.9.0/sbin/hadoop-daemon.sh: No such file or directory
dn2: bash: line 0: cd: /home/user1/hadoop-2.9.0: No such file or directory
dn2: bash: /home/user1/hadoop-2.9.0/sbin/hadoop-daemon.sh: No such file or directory
Starting secondary namenodes [0.0.0.0]
0.0.0.0: secondarynamenode running as process 3052. Stop it first.
[root@nn1 hadoop-2.9.0]# 


For reference :
Master: 
Hostname= nn1
Username= user1

Slave1:
Hostname=dn1
username=slave1

slave2:
Hostname=dn2
username=slave2