UDA Error Messages A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #You do not have permission to su root "You do not have permission to su root" is an operating system error. It occurs when permissions prohibit non-root users from using the su command to gain root access. To resolve this problem, take the following action: Login to the system as the root user. (Consult a System Administrator, as necessary.) Edit the /etc/group file. Add the problem user to the system group. For example: Before system:*:0:root After system:*:0:root,bob Save your changes and exit the file. Test.