Problem Hadoop

[Andrea Valentini Albanelli]

Hello,

when I try to do 

bin/hadoop fs -put conf input

I obtain:

put: org.apache.hadoop.security.AccessControlException: Permission
denied: user=santoni, access=WRITE,
inode="user":root:supergroup:rwxr-xr-x

What's that?

I've try to add the following entry to conf/hdfs-site.xml:

 <property> 
  <name>dfs.permissions</name> 
  <value>false</value> 
 </property> 

But nothing.

I've try to format the namenode too with 
$ bin/hadoop namenode -format

but nothing

Thank you for help,

Andrea