DigiWARE Release Notes 93000287C
				      for
			     Digi EPC/X, C/X, Xem,
		   Avanstar, Xr, Xe and	Xe(MC) Async Drivers

			   UNIX	System V Release 4.2
				  MP-RAS 03.0x
			 Software Package P/N 75000338C

				EPC/X, C/X, Xem,
		      Avanstar and Xr Device Driver 7.0.5
			      EPC/X  FEP/OS 2.4.3
				Xem FEP/OS 2.4.3
				Xr FEP/OS 2.4.2
				C/X FEP/OS 3.6.0

		     Digi Xe and Xe(MC)	Device Driver 7.0.5
			 Digi Xe and Xe(MC) FEP/OS 7.08

				   MPI V3.2.3
			 Diskette P/N 40001797C	(3.5")
			 Diskette P/N 40001798C	(3.5")
			     Source   P/N 81000029C

			 Software Manual P/N 92000154K

				 March	1, 1999

	  This DigiWare	software package includes device drivers for Digi Xe,
	  Digi Digi Xr,	Avanstar, EPC/X, C/X and Xem product families.
	  This	package	also contains Digi's MenuPort Interface	(MPI),
	  Port Configuration Utility (PCU)  and	 Digi  Port  Authority
	  (DPA).

	   MPI V3.2.3:

	  1. Enhancements

	  None

	  2. Bug Fixes

	  Fixed	firmware problem that caused non-PCI C/X cards to fail
	  initialization.

	  3. Known Limitations

	  MP-RAS has a bug (corrected in Release 03.02.00) that	causes
	  a  kernel  panic  when  unloading  drivers.	Digi  loadable
	  drivers have been altered to refuse to be unloaded on	MP-RAS
	  releases  earlier  than 03.02.00.  The user must then	reboot
	  to affect driver changes made	via MPI.

	  If Digi loadable drivers are removed but  not	 re-installed,
	  the  user is advised to relink the kernel prior to rebooting
	  the UNIX system.  The	utilities used to remove a driver from
	  the  system  do  not	remove driver references from the file
	  "/etc/conf/cf.d/sdevice".  Relinking the kernel causes  this



				     - 1 -






	  file to be rebuilt.

	  The time to perform various stages in	the  MPI  install  and
	  change process can vary widely depending on when the idbuild
	  for a	driver is done.	 Since the idbuild for a driver	cannot
	  be done while	the driver is loaded, MPI will do the build at
	  one of three different times:

	  Driver not loaded - build is done during configuration

	  Driver was changed while it was  loaded  and	is  now	 being
	  reloaded - build is done during load

	  Driver was changed while it was loaded and the system	is now
	  being	 rebooted  -  the  build  is done during the load that
	  occurs after the boot

	  MPI must be run after	pkgadd to install new products.

	  Before the MPI package can be	removed	from the  system,  the
	  remove installed products option must	be invoked through MPI
	  to remove all	configured Digi	drivers.

	  At this point, the driver supports PCI initialization	 using
	  the built in PCI BIOS	routines.  If the hardware or software
	  does not allow use of	the PCI	BIOS routines, the board  ini-
	  tialization will fail.

	  Executing pkginfo -l on the MPI package will display a  mes-
	  sage	of partially installed pathnames.  This	message	can be
	  ignored.

	  The ditty printer option does	not guarantee complete	writes
	  of data to slow printer devices unless the tcdrain mechanism
	  is used.

	  For maximum performance of throughput, all of	the concentra-
	  tors should be evenly	divided	between	the 2 lines.

	  4. Manual Errata

	  None