Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!super!udel!princeton!njin!rutgers!tut.cis.ohio-state.edu!cwjcc!gatech!ncsuvx!ece-csc!rss
From: rss@ece-csc.UUCP (ML)
Newsgroups: comp.sys.amiga
Subject: Re: problems with using 1.3 FFS with Pacific Peripherals Overdrive
Message-ID: <3823@ece-csc.UUCP>
Date: 30 Oct 88 20:13:11 GMT
Article-I.D.: ece-csc.3823
References: <41342@linus.UUCP>
Reply-To: rss@ece-csc.UUCP (ML)
Organization: the loony bin
Lines: 61

In a previous article sdl@linus.UUCP (Steven D. Litvintchouk) wrote:
>
>I have been unable to get the Workbench 1.3 Fast File System (FFS) to
>work with my Pacific Peripherals Overdrive hardcard on my Amiga 2000.
>
>I have a Seagate ST157N hard disk attached to the hard card.  I
>formatted the drive with two partitions: one with the standard file
>system, and one with the Fast File System (FFS).  The partition with
>the standard file system works fine.  But every time I try to copy
>files from a floppy disk drive to the FFS partition, the Amiga
>crashes; sometimes it freezes up, other times it gurus.  (If I try to
>copy files from the standard hard disk partition to the FFS partition,
>that also causes gurus, but only intermittently.)
>
>I called Pacific Peripherals about this.  They suggested that
>FastMemFirst should not be used (the Workbench 1.3 version is
>apparently buggy) ...


I have the same configuration and ran into the same problems.  After
some experimenting and some calls to a local guru I finally came up with
this mountlist entry which seems to do the trick:



/* Pacific Peripherals OverDrive Drive definition for ST157N drive */

DH0:	Device = overdrive.device
	FileSystem = L:FastFileSystem
	Unit = 1
	Flags = 0
	Surfaces = 6
	BlocksPerTrack = 26
	Reserved = 2
	Interleave = 0
	LowCyl = 1  ;  HighCyl = 608
	Buffers = 5
	BufMemType = 2
	MaxTransfer = 1
	Mount = 1
	GlobVec = -1
	DosType = 0x444F5301
	Mask = 0x7FFFF
#


The "Mask" and "MaxTransfer" fields seem to be the important thing (I'm not
sure about BufMemTypye either).

Obviously, I haven't put any SFS partition on my drive; I have no need to since
I don't have the 1.3 ROMS so I can autoboot (do I all need new roms on the
Paciphic Periph. Overdrive controller to autoboot?)

BTW -- I *DO* have FastMemFirst in my startup sequence.



Hope this works for you.

                           Mark Lanzo
                    borrowing ...mcnc!ece-csc!rss