The Greeter should not allow enabling read-write persistence on read-only media
Originally created by @alant on #6611 (Redmine)
It has been reported that:
on boot, if persistence is enabled but read-only is not selected, the system hangs on read-only usb sticks
Perhaps read-only should be automatically selected on such media, or at least it should show an error message.
Parent Task: #7019 (closed)