filesystem − event signalling that filesystems have been mounted
The filesystem event is generated by the mountall(8) daemon after it has mounted all filesystems listed in fstab(5). mountall(8) emits this event as an informational signal, services and tasks started or stopped by this event will do so in parallel with other activity.
A service that wishes to be running once filesystems are mounted might use:
start on filesystem
mounting(7) mounted(7) virtual-filesystems(7) local-filesystems(7) remote-filesystems(7) all-swaps(7)