#1.44MB format
5 messages in this thread
> For some reason I can't get PC0: or PC1: to work on my machine.
Kevin,
What version of Amiga OS do you have? In version 2.1 which includes
CrossDos you use the FORMAT program out of the System
directory/drawer/folder on your SYS: partition. (If you have a
bridgeboard (BB) with Janus 2.1, you should first set Flipper to MAN and
select DF0. If you don't have a BB, nevermind!) This program will have
the appropriate selection to format PC0: to 1.44 MB. You can also select
the label from the requestor that appears after clicking format on the
FORMAT selector.
The PCUtil programs come from version 1.3. I doubt that you'll be able
to use these programs with good results on a high density drive.
This is my PC0 file for a high density drive:
/* CrossDOS file system entry
*
* This file enables CrossDOS on the built-in floppy drive normally *
referred to as DF0:. PC1 does the same for DF1. By creating new versions
* of this file and changing the Unit line to use other numbers, you can *
make CrossDOS available on other devices. For example, changing the value
* of Unit to 2 would create a mount file that would enable CrossDOS on
DF2. */
FileSystem = L:CrossDOSFileSystem
Device = mfm.device
Unit = 0
Flags = 1
Surfaces = 2
BlocksPerTrack = 18
Reserved = 1
Interleave = 0
LowCyl = 0
HighCyl = 79
Buffers = 5
BufMemType = 0
StackSize = 600
Priority = 5
GlobVec = -1
DosType = 0x4D534400
This is my PC1 file for a 880K/df 720K/PC 3.5 inch drive:
/* CrossDOS file system entry for PC1
*
* This file enables CrossDOS on the first external floppy drive normally
* referred to as DF1:. PC0 does the same for DF0. By creating new versions
* of this file and changing the Unit line to use other numbers, you can
* make CrossDOS available on other devices. For example, changing the
value * of Unit to 2 would create a mount file that would enable CrossDOS
on DF2. */
FileSystem = L:CrossDOSFileSystem
Device = mfm.device
Unit = 1
Flags = 1
Surfaces = 2
BlocksPerTrack = 9
Reserved = 1
Interleave = 0
LowCyl = 0
HighCyl = 79
Buffers = 5
BufMemType = 0
StackSize = 600
Priority = 5
GlobVec = -1
DosType = 0x4D534400
Sincerely,
(Mr.) Gayle Lee Fairless
'Perfessor Fearless' from the Rocket City!
via AutoPilot 1.03a
Thanks for the information. I thought that I should just be able to change the
BlocksPerTrack to 18 for a high density drive. But I can't get PC0: or PC1: to
work at 720K. I think it is a problem with my startup-sequence. I was
rearranging it the other day and they worked for a while. But I can't remember
what I changed and now they don't work again. What would make my machine not
recognize StackSize or Handler or other things in my MountList?
Kevin Holloway 70606,172
Kevin,
Since installing a C= HiD drive on my A2xxx all I did was put the MF2HD
disks in the drive and they were recognized as high density. I did nothing
to the pc0: mountlist.
I had some pre-formatted IBM disks and they worked just fine. I formatted
one of them to Amiga FFS and it came up as 1760K.
Moving the HiD disk over to the Macintosh and AccessPC recognized it too,
I was able to transfer Adobe Illustrator IBM.EPS artwork to the floppy and
then to the Amiga. Pagestream 2.2 loaded the graphics just fine from the
1.44MB disk in the C= HiD drive.
I can't begin to tell you how nice it is to finally be able to use these
disks. File transfers to/from the MAC and IBM at work are so much easier.
Make sure that the following files are present in your system and at the
proper locations:
L:CrossDOSFileSystem
devs:DOSDrivers/PC0
devs:mfm.device
Christopher
Thanks for the help. All the files you mentioned are were they should be.
Kevin Holloway
Kevin,
You may have to post your startup-sequence and your MountList for
us to help you with that. I know that, for my configuration, the
high density drive (HDD) had to go into the DF0: position. I put the
PC0:, PC1:, and PC2: icons in my WBStartup drawer. PC2: is a copy of
PC1:. I edited PC0: to increase the BlocksPerTrack simply to be
consistent with the fact that the HDD is in the DF0: position.
Actually the bootup ROM softwares 'sees' it.
I've been able to read 720K diskettes from PC0:, but I refrain
from formatting 720K diskettes on DF0:/PC0:. I use one of the
regular drives to either format or write to 720K diskettes even if I
have to use the Janus AREAD/AWRITE commands with the /b switch.