Execution of the command of ssh with open/root/.ssh/id_dsa failed error: Permission denied

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http://stackoverflow.com – Working it agrees http://www.ibm.com/developerworks/ru/library/l-hadoop-1/ at first I entered into the user of hadoop by means of a command root@one: /volumes# su hadoop The invitation was as a result displayed root@one: /volumes# and to check I entered into the user of hadoop executed the whoami command, on what gave out me hadoop. Then I tried to execute root@one: /volumes# ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa therefore I received the following messages Generating public/private dsa key pair. open /root/.ssh/id_dsa failed: Permission denied. Saving the key failed: /root/.ssh/id (HowTos)