I think that a notification would be beneficial on each change. That means, if a new SD-Card has been detected or if that SD-Card (already known to the system as beeing in use) has been removed.
On each change the system should send a notification once and then record the change, so that on next boot no new notification is produced.
If on next boot the SD-Card from the record is absent, a notification about a removal should be produced and the record deleted.
I think that a notification would be beneficial on each change. That means, if a new SD-Card has been detected or if that SD-Card (already known to the system as beeing in use) has been removed.
On each change the system should send a notification once and then record the change, so that on next boot no new notification is produced.
If on next boot the SD-Card from the record is absent, a notification about a removal should be produced and the record deleted.