you need to have root access. use su or sudo to start it.

ericbsd wrote:you need to have root access. use su or sudo to start it.

sudo polkit-gnome-aothorization

Back to gui still will not accept the edit changes.

Did you try to run it as root?

ericbsd wrote:Did you try to run it as root?

the result as root ** (polkit-gnome-authorization:2018): WARNING **: Couldn't connect to session bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

Try to login as root user from the GDM login, and see if the system will mount it.