Reputation: 1098
I am configuring hadoop on Ubuntu os. I need to create RSA key pair to allow hadoop to interact with its nodes, so i running this command:
hadoop@ubuntu:~$ ssh-keygen -t rsa -P ""
then I get this:
Generating public/private rsa key pair.
Enter file in which to save the key (/home/hadoop/.ssh/id_rsa):
Could not create directory '/home/hadoop/.ssh': permission denied.
Enter passphrase (empty for no passphrase ):
Enter same passphrase again:
open /home/hadoop/.ssh/id_rsa failed: No such file or directory.
Saving the key failed: /home/hadoop/.ssh/id_rsa.
Upvotes: 1
Views: 23218
Reputation: 2756
I have spent arround 1 hr on this and finally got the solution. It is due to permission problem. You have to use chown for your 'hadoop user'. 1. First make hadoop directory. cd /home mkdir hadoop then check 'ls -l'. it gives result like : drwxr-xr-x 2 hadoop hadoop 4096 Aug 22 22:17 hadoop 2. sudo chown hadoop.hadoop /home/hadoop/ 3. Then run remaining command for key generater.
Upvotes: 0
Reputation: 1
Seems like current user doesn't own the contents under home directory.
Gain the ownership as shown as below:
admin@mydb22-02:~$ sudo chown admin.admin /home/admin/
admin@mydb22-02:~$ ls -la
total 32
drwxr-xr-x 2 admin admin 4096 Nov 3 23:29 .
drwxr-xr-x 3 admin admin 4096 Dec 23 2012 ..
-rw------- 1 admin admin 191 Feb 13 2013 .bash_history
-rw-r--r-- 1 admin admin 220 Apr 3 2012 .bash_logout
-rw-r--r-- 1 admin admin 3486 Apr 3 2012 .bashrc
-rw-r--r-- 1 admin admin 675 Apr 3 2012 .profile
-rw-r--r-- 1 admin admin 0 Nov 3 23:29 .sudo_as_admin_successful
-rw------- 1 admin admin 4221 Nov 3 20:31 .viminfo
generating keys would work now as .ssh directory will now be created and owned by current user after generating the assymetric keys
Upvotes: 0
Reputation: 379
check your home directory name and permissions
echo $HOME
cd ~ ; ls -l
ls -l .ssh
ls -lR .ssh
if above output is OK and you have correct permissions, perhaps your quota is full
try with "sudo" and see what happens...
Upvotes: 1
Reputation: 5249
Forgot to create .ssh
dir in your home?
Try that:
mkdir -p ~/.ssh
then re-run ssh-keygen.
Also possibly you doing ssh-keys creation from wrong user.. You started that shell using sudo?
Try to set HOME dir manually or enter right path in prompt.
Upvotes: 6