[GRASS-user] access denied to MAPSET in linux

[António Rocha]

Dear all,
I'm tryging to access a Location/mapset located in a folder (where I 
have write/execute/read permission) but the mapset and location were not 
created by me. When I run grass I get permission denied. How can I get 
access or how can the original user of the mapset can give access 
permission to other users?
This is all in a Linux server
Thanks
Antonio