🚀 go-pugleaf

In article <617@cernvax.UUCP> jmg@cernvax.UUCP () writes:
>In article <3444@batcomputer.tn.cornell.edu> braner@tcgould.tn.cornell.edu (braner) writes:
>>I got hold of the fix from Avante Guarde to make MS-DOS correctly read
>>the Atari SH204 hard disk under PC-Ditto.  Turns out that the boot
>>parameters in the HD are trashed after running the Atari utilities.
>>Here are correct values of the trashed parameters in logical sector 0
>>of each HD partition: (the trashy ones sure looked suspicious!)

OK, here it is again, with the offsets into the boot sectors (which are
logical sector 0 of each partition, NOT the first sector of the physical
disk, which holds the partition info and autobooting code).  (Mr. Pratt
at Atari told me that the BIOS function Rwabs() with r/w parameter of 0
reads the logical sectors of the partitions, but with r/w = 2 and record
number = 0 one can read the master boot sector.)

offset	bytes		correct		trash

10	1	NFATS	02		20
15	1	MEDIA	F8		73
18	2	SPT	0011		2E70
1A	2	NSIDES	0004		2C73
1C	2	NHID	0001		2076

(all in hex).  Note that the 2-byte entries are in INTEL format,
i.e. low-order byte first!  (That's for MD-DOS compatibility.)
I also put F8 in the first sector of each copy of the FAT
in each partition, just in case (the fix program from A.G. does not do that).
They say you must fix it again after EACH TIME you run HDX or HINSTALL.

>... However, PCDITTO
>fails to recognise that I have any hard disk at all, whatever I try.

You need PCD version 3.0.

- Moshe Braner

PS: PCD still does not recognize my 5.25 inch drive B: !!!