This bug was reported on an upgraded system. It also happens on a fresh quantal install.
How to reproduce :
* install quantal on a new dedicated partition.
* have another partition that you want to be mounted at boot time
* from unity launcher run "disk utility" (process name is "gnome-disks")
* click on that other partition
* click on gear icons, choose "edit mount options"
* toggle "automatic mount option s" which enables the other controls (you don't need to change anything else)
* click on "validate"
This bug was reported on an upgraded system. It also happens on a fresh quantal install.
How to reproduce :
* install quantal on a new dedicated partition.
* have another partition that you want to be mounted at boot time
* from unity launcher run "disk utility" (process name is "gnome-disks")
* click on that other partition
* click on gear icons, choose "edit mount options"
* toggle "automatic mount option s" which enables the other controls (you don't need to change anything else)
* click on "validate"