Path: utzoo!censor!becker!douglee
From: douglee@becker.UUCP (Doug Lee)
Newsgroups: comp.sys.amiga
Subject: Re: DiskCopy fails on Hard Drive
Keywords: A2090A CDC Wren III (again) kjohn's hard-floppy
Message-ID: <481@becker.UUCP>
Date: 6 May 89 19:04:55 GMT
References: <1296@esunix.UUCP>
Reply-To: douglee@becker.UUCP (Doug Lee)
Distribution: na
Organization: G. T. S., Toronto, Ontario
Lines: 35

In article <1296@esunix.UUCP> blgardne@esunix.UUCP (Blaine Gardner) writes:
>I cannot get diskcopy to work on any of my hard drive partitions. The
>partitions I'm trying to diskcopy are the same size, and the same
>filesystem, and have "Sys:System/DiskCopy" as the default tool in the
>disk.info file, but here's what happens: Stuff deleted...
I have successfully made this work on a Supra SCSI interface. I have made all 
attributes in my mountlist the same except for LowCyl and HighCyl. These 
parameters must be conscutive from opne partition to the next. EG: if you 
want to have a floppy size partition immediately following a partition with
HighCyl = 99, the mountlist would be

MYDRIVE:	Device = your.device
		Unit = 0 /* Your drive's unit # */
		Flags = 0
		Surfaces = 2
		Blocks PerTrack =11
		Reserved = 2
		Interleave = 0
		LowCyl = 100 
		HighCyl = 179 /* Note the difference in High/LowCyl */
		Buffers = 10 /* or whatever */
		BufMemType = 3 /* may be necessary if you only have
				  chip, otherwise use 5 for fast */

This may ONLY work with a SCSI interface as the low level format (Physical
# of cylinders, heads is taken care of by the SCSI controller. The number 
of cylinders used in your mountlist has no relevance to the number of physical

cylinders on the drive. The only thing that seems to matter is that MountList
attributes are tha same and that the total number of surfaces*blocks/track*heads*nr of partitions in your mountlists are less than the same total on your
physical drive. This may not be 100% correct, but works for me. I have been 
able to do diskcopys between floppies and HD and also HD to HD partitions. I 
have actually diskcopied between equal sized 10 meg partitions.
If this doesn't enlighten you, you may wish to post your mountlist 
				 <<<Doug>>>