It is very likely that you will not want to have the Geronimo server process under the super user root. The following are a serie of simple steps for changing the ownership and permission for the required files in order to run Geronimo with a different user.

The following taks should be performed while logged as root or a user with enough access rights.

1. create a new user (i.e. gmo) and add it to a specific user group. You could use the predefined www user group for instance.
2. edited the .bashrc for the user you just created and add the PATH and JAVA_HOME variables:
   PATH=$PATH:<java_home>/bin
   export PATH
   JAVA_HOME=<java_home>
   export JAVA_HOME
3. change the user group to all the subdirs in <geronimo_home>
   chown -R root:www <geronimo_home>
4. create a deploy directory within the <geronimo_home> directory structure.
5. change the access permissions to the following directories
   chmod -R 774 <geronimo_home>/bin
   chmod -R 774 <geronimo_home>/config-store
   chmod -R 774 <geronimo_home>/deploy
   chmod -R 774 <geronimo_home>/repository
   chmod -R 774 <geronimo_home>/var
6. login as the new user (i.e. gmo)
7. cd <geronimo_home>/bin
8. ./geronimo.sh run

You are now able to run and deploy applications with a user other than root.