Kaypro II CP/M Boot Disk - SCP Creation

[ldkraemer]

I'm having trouble copying all the Cylinders (40) of a Kaypro II Boot Floppy.

My Software displays "SuperCard Pro Archiver v1.30 Hardware v1.1 - Firmware v1.0"

A New DSDD Floppy was used to make a copy of my Kaypro II Boot Disk, created on
my Kaypro II with a SSDD 48 TPI Floppy Drive.

I copied that Boot Floppy on my SuperCard Pro using a 1.2 Meg TEAC DSDD 96 TPI Floppy Drive.
I selected 96 TPI and "HIGH" Density in the Drive settings. Using the CP/M Selection,
I only have 0 thru 42 Cylinders available. I left the "DEFAULT" of 0 thru 42 selected for "CP/M" &
"INDEX".

My SCP file information is: 8885113 Jul 9 17:19 KP2Boot2.scp

I use SAMdisk to scan this file, and I see the following results:
[KP2Boot2.scp]
Warning: 36 missing or invalid stream tracks
40 Cyls, 2 Heads:
300Kbps MFM, 2 sectors, 512 bytes/sector:
0.0 0[g1226] 6
300Kbps MFM, 10 sectors, 512 bytes/sector:
1.0 0 8 3 6 1 9 4 7 2 5
2.0 0 8 3 6 1 9 4 7 2 5
3.0 0 8 3 6 1 9 4 7 2 5
4.0 0 8 3 6 1 9 4 7 2 5
5.0 0 8 3 6 1 9 4 7 2 5
6.0 0 8 3 6 1 9 4 7 2 5
7.0 0 8 3 6 1 9 4 7 2 5
8.0 0 8 3 6 1 9 4 7 2 5
9.0 0 8 3 6 1 9 4 7 2 5
10.0 0 8 3 6 1 9 4 7 2 5
11.0 0 8 3 6 1 9 4 7 2 5
12.0 0 8 3 6 1 9 4 7 2 5
13.0 0 8 3 6 1 9 4 7 2 5
14.0 0 8 3 6 1 9 4 7 2 5
15.0 0 8 3 6 1 9 4 7 2 5
16.0 0 8 3 6 1 9 4 7 2 5
17.0 0 8 3 6 1 9 4 7 2 5
18.0 0 8 3 6 1 9 4 7 2 5
19.0 0 8 3 6 1 9 4 7 2 5
20.0 0 8 3 6 1 9 4 7 2 5
21.0 0 8 3 6 1 9 4 7 2 5
22.0 missing
23.0 missing
24.0 missing
25.0 missing
26.0 missing
27.0 missing
28.0 missing
29.0 missing
30.0 missing
31.0 missing
32.0 missing
33.0 missing
34.0 missing
35.0 missing
36.0 missing
37.0 missing
38.0 missing
39.0 missing
0.1 <blank>
1.1 <blank>
2.1 <blank>
3.1 <blank>
4.1 <blank>
5.1 <blank>
6.1 <blank>
7.1 <blank>
8.1 <blank>
9.1 <blank>
10.1 <blank>
11.1 <blank>
12.1 <blank>
13.1 <blank>
14.1 <blank>
15.1 <blank>
16.1 <blank>
17.1 <blank>
18.1 <blank>
19.1 <blank>
20.1 <blank>
21.1 <blank>
22.1 missing
23.1 missing
24.1 missing
25.1 missing
26.1 missing
27.1 missing
28.1 missing
29.1 missing
30.1 missing
31.1 missing
32.1 missing
33.1 missing
34.1 missing
35.1 missing
36.1 missing
37.1 missing
38.1 missing
39.1 missing

I then selected IBM 720K 3.5" Floppy and created KP2Boot3.scp
My SCP file information is: 16956903 Jul 9 17:22 KP2Boot3.scp

I use SAMdisk to scan this file, and I see the following results:
[KP2Boot3.scp]
40 Cyls, 2 Heads:
300Kbps MFM, 2 sectors, 512 bytes/sector:
0.0 0[g1226] 6
300Kbps MFM, 10 sectors, 512 bytes/sector:
1.0 0 8 3 6 1 9 4 7 2 5
2.0 0 8 3 6 1 9 4 7 2 5
3.0 0 8 3 6 1 9 4 7 2 5
4.0 0 8 3 6 1 9 4 7 2 5
5.0 0 8 3 6 1 9 4 7 2 5
6.0 0 8 3 6 1 9 4 7 2 5
7.0 0 8 3 6 1 9 4 7 2 5
8.0 0 8 3 6 1 9 4 7 2 5
9.0 0 8 3 6 1 9 4 7 2 5
10.0 0 8 3 6 1 9 4 7 2 5
11.0 0 8 3 6 1 9 4 7 2 5
12.0 0 8 3 6 1 9 4 7 2 5
13.0 0 8 3 6 1 9 4 7 2 5
14.0 0 8 3 6 1 9 4 7 2 5
15.0 0 8 3 6 1 9 4 7 2 5
16.0 0 8 3 6 1 9 4 7 2 5
17.0 0 8 3 6 1 9 4 7 2 5
18.0 0 8 3 6 1 9 4 7 2 5
19.0 0 8 3 6 1 9 4 7 2 5
20.0 0 8 3 6 1 9 4 7 2 5
21.0 0 8 3 6 1 9 4 7 2 5
22.0 0 8 3 6 1 9 4 7 2 5
23.0 0 8 3 6 1 9 4 7 2 5
24.0 0 8 3 6 1 9 4 7 2 5
25.0 0 8 3 6 1 9 4 7 2 5
26.0 0 8 3 6 1 9 4 7 2 5
27.0 0 8 3 6 1 9 4 7 2 5
28.0 0 8 3 6 1 9 4 7 2 5
29.0 0 8 3 6 1 9 4 7 2 5
30.0 0 8 3 6 1 9 4 7 2 5
31.0 0 8 3 6 1 9 4 7 2 5
32.0 0 8 3 6 1 9 4 7 2 5
33.0 0 8 3 6 1 9 4 7 2 5
34.0 0 8 3 6 1 9 4 7 2 5
35.0 0 8 3 6 1 9 4 7 2 5
36.0 0 8 3 6 1 9 4 7 2 5
37.0 0 8 3 6 1 9 4 7 2 5
38.0 0 8 3 6 1 9 4 7 2 5
39.0 0 8 3 6 1 9 4 7 2 5
0.1 <blank>
1.1 <blank>
2.1 <blank>
3.1 <blank>
4.1 <blank>
5.1 <blank>
6.1 <blank>
7.1 <blank>
8.1 <blank>
9.1 <blank>
10.1 <blank>
11.1 <blank>
12.1 <blank>
13.1 <blank>
14.1 <blank>
15.1 <blank>
16.1 <blank>
17.1 <blank>
18.1 <blank>
19.1 <blank>
20.1 <blank>
21.1 <blank>
22.1 <blank>
23.1 <blank>
24.1 <blank>
25.1 <blank>
26.1 <blank>
27.1 <blank>
28.1 <blank>
29.1 <blank>
30.1 <blank>
31.1 <blank>
32.1 <blank>
33.1 <blank>
34.1 <blank>
35.1 <blank>
36.1 <blank>
37.1 <blank>
38.1 <blank>
39.1 <blank>

I'd previously sent a copy of my .SCP to Jean-Francois DEL NERO & Jeff @ HxC, along with Simon Owen, because
I couldn't get a copy that would boot with SAMdisk or the HxC Floppy Emulator Software.

Jean-Francois DEL NERO & Jeff's reply was:

The disk is in good condition. BUT, it seems that there is a double step setting problem : I think that you have only the half of the floppy.
The Kaypro disk have 40 tracks but these one are twice "wider" on the disk.
If you are using an 80 tracks floppy drive you need to dump 80 tracks OR, if the SCP software allows this, enable an double step mode : 1 track= 2 head step.

Redump your disk to have all the tracks and send me again the SCP file.

and:

Same thing : There is only 40 tracks in single step.

Please redump it with 80 tracks.

Likewise Simon Owen replied:

I think the problem might be a a 48tpi vs 96tpi issue, as all the disk image you sent seem to need double-stepping.
For example, if you scan the first 6 tracks of the SCP image using: SAMdisk scan -c6 -h0 KP2Boot1.scp you get the following output:

[KP2Boot1.scp]
6 Cyls, Head 0:
300Kbps MFM, 10 sectors, 512 bytes/sector:
0.0 0 8 3 6 1 9 4 7 2 5
Warning: late track start may indicate missing first sector
300Kbps MFM, 1 sector, 512 bytes:
1.0 9[dc,g2710]
300Kbps MFM, 10 sectors, 512 bytes/sector, c=1:
2.0 0 8 3 6 1 9 4 7 2 5
300Kbps MFM, 1 sector, 512 bytes, c=2:
3.0 9[dc,g2711]
300Kbps MFM, 10 sectors, 512 bytes/sector, c=2:
4.0 0 8 3 6 1 9 4 7 2 5
5.0 <blank>

That initially looks quite a mess, with some warnings and different numbers of sectors per track. Though if you look more closely you'll see
the even tracks appear to be correct, and the junk is on the odd tracks. Also, the c=1, c=2 at the end of alternate headers suggests the cyl
value in the sector header is half what it should be. Scanning the image again with the -d option to double-step gives better results:

6 Cyls, Head 0:
300Kbps MFM, 10 sectors, 512 bytes/sector:
0.0 0 8 3 6 1 9 4 7 2 5
1.0 0 8 3 6 1 9 4 7 2 5
2.0 0 8 3 6 1 9 4 7 2 5
3.0 0 8 3 6 1 9 4 7 2 5
4.0 0 8 3 6 1 9 4 7 2 5
5.0 0 8 3 6 1 9 4 7 2 5

That looks much more normal! Each track has 10x512-byte MFM sectors, starting with sector id 0. However, all the disk images are
40 tracks and 2 sides, and double-stepping it reduces that to 20 tracks and 2 sides. So you will need to tell the SuperCard Pro software
to dump 80 tracks, or convince it to double-step a true 40 tracks. Scanning the image as I've done above should confirm whether it's correct.

Hopefully that'll fix it, but give me a shout if you have any trouble!

Is it possible to expand the Cylinders to 80 for CP/M to get all 40 Cylinders copied correctly in a 96 TPI Drive,
or can a .SCP be created of a CP/M Floppy with the IBM 3.5" 720K selection?

Will you please verify my test results, and tell me what I need to do, or select, to make a proper 40 Cylinder .SCP file from the CP/M SSDD
Boot Floppy using a 1.2M 5.25" 96 TPI Teac Floppy Drive.

If you need a copy of my .SCP file, I can upload it to my Google Drive. Just let me know.

THANKS.

Larry