linux man page for mounting

mounting(7)						 Miscellaneous Information Manual					       mounting(7)

NAME
       mounting - event signalling that a filesystem is mounting

SYNOPSIS
       mounting DEVICE=DEVICE MOUNTPOINT=MOUNTPOINT TYPE=TYPE OPTIONS=OPTIONS [ENV]...

DESCRIPTION
       The  mounting  event is generated by the mountall(8) daemon when it is about to mount a filesystem.  mountall(8) will wait for all services
       started by this event to be running, all tasks started by this event to have finished and all jobs stopped by  this  event  to  be  stopped
       before proceeding with mounting the filesystem.

       The DEVICE, MOUNTPOINT, TYPE and OPTIONS environment variables contain the values of the fstab(5) fields for this mountpoint.

EXAMPLE
       A tool that should be run before mounting the /var filesystem might use:

	      start on mounting MOUNTPOINT=/var
	      task

SEE ALSO
       mounted(7) virtual-filesystems(7) local-filesystems(7) remote-filesystems(7) all-swaps(7) filesystem(7)

mountall							    2009-12-21							       mounting(7)