Unable to mount 'drive'. Authentication is required.
I'm using i3 on top of Debian 7 GNOME. While mounting drives on i3, I get the following error message: "Unable to mount nameofthe_drive. Authentication is required." Therefore, I cannot mount any drive. But while in GNOME, when I click to open any drive, a dialog box appears asking for user password. The drive mounts when I give the password. But here in i3, no dialog box appears asking for password, nor it mount the drive. So what should I do?