Problemas graves no webmin - problemas de permissão - e coisas parecidas

Question

Eu tenho um webmin em execução e tenho sérios problemas - não consigo acessar nenhum banco de dados no webmin ...

SQL select table_schema,table_name from information_schema.views
where table_schema = ? failed:
Can't create/write to file '/var/tmp/mysql.5u7n3M/#sql_608_0.MYI'
(Errcode: 2)


db-permission
SQL desc 'db' failed : Can't create/write to file
'/var/tmp/mysql.5u7n3M/#sql_608_0.MYI' (Errcode: 2)

user permission
SQL desc 'user' failed : Can't create/write to file
'/var/tmp/mysql.5u7n3M/#sql_608_0.MYI' (Errcode: 2)

O que posso fazer?