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In Case of Difficulty
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1990-06-26
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"In Case of Difficulty"
Should you experience some difficulty accessing an MS-DOS
disk, here are some ideas that may help narrow down the
problem.
First, make sure you have configured the drive you wish to
use the MS-DOS disk on by using either the "MountMF"
command or the "Attach" command. If you are using the
"Attach" command, specify the correct device name of the
drive you wish to use. The device names correspond to the
device names given by Commodore (ie. DI0: is the MS-DOS
device name whereas DF0: is the AmigaDOS device name).
The easiest way check an MS-DOS disk is to run the
"DiskChk" program included with CrossDOS to generate error
numbers that can be used with the following chart.
Problem/Solution Chart
Problem Solution (or areas to check)
=============================================================
"Not a DOS Disk" Make sure the disk is an MS-DOS standard
Requester density formatted disk. The disk may be
an AmigaDOS or MS-DOS high density
formatted disk.
"Disk Ejected Too Disk removed before all information
Soon" Requester written to it. Replace disk and retry
may recover without corruption. We
recommend you wait at least 3 seconds
from the last disk access before removing
the disk.
"FAT Table Corrupt" Important information on the disk is
Requester sensed to be corrupt. Use a disk salvage
program on your MS-DOS computer to try to
recover data where possible.
"Disk Full" Exceeded the capacity of the system disk.
Requester using Remove unnecessary files from the disk or
"Install_msdosFS" use "Attach" command.
"Not an MS-DOS Device name selected does not refer to an
disk" response MS-DOS configured device. Chose the
from "MFormat" device name such as DI0: instead of DF0:
"DF0:BAD" disk This is OK. The task that handles the
icon device called DF0: cannot recognize a
foreign disk format.
Used "MountMF" "MountMF" only configures all the drives
from WORKBENCH or as MS-DOS devices but does not load the
boot file file system code to save memory. Your
but no icon first access of the device in a program
appears will load the file system and the icon
should appear.
Copied icon to Copy only files with NO file extension.
MS-DOS disk using WORKBENCH icons already have an extension
WORKBENCH but (.info). MS-DOS file names can only have
cannot properly one extension. Also, avoid file names
access icon later longer than 8 characters. Rename files if
on same disk they are a problem.
Changed the MS-DOS The 5 1/4" drive does not support the
disk on the 5 1/4" "diskchange" signal. When you change
drive and still disks, issue the CLI "DiskChange" command
get the old di- or our "DiskChg" command on the drive
rectory from the before your next access to the new disk.
previous disk
Copied file to Avoid using spaces in files names. The
MS-DOS disk but MS-DOS computer ignores everything after
cannot find it the space character.
when reading the
disk on my MS-DOS
computer
Error=-4 TDPatch12 or TDPatch13 needs to be applied.
Error=21 Could not find any sectors on the
specified track. Probably not MS-DOS
standard density formatted.
Error=22 Sector not aligned with index signal
from disk. Usually not disastrous.
Retry may recover.
Error=23 Sector not found. Disk may be corrupt.
Retry may recover.
Error=24 Sector identification info corrupt.
Retry may recover.
Error=25 Sector data may be corrupt.
Retry may recover.
Error=38 Index signal from the drive not received.
Amiga needs service to correct hardware
problem.
==============================================================
If you still have problems, you can call us at:
(313) 459-7271
Mon-Fri 10:00 AM to 5:00 PM Eastern Standard Time
Helpful Tips
Here are some helpful tips to make using CrossDOS as simple
as possible.
- Avoid file names longer than 8 characters.
- Avoid file extensions longer than 3 characters.
- Avoid space in file names or file extensions.
- When using WORKBENCH, avoid transferring files with file
extensions. Rename them first if necessary.
- Make sure the type of file you want to use between both
the Amiga program and the MS-DOS program are
compatible. Example: A Scribble! file is not readable
by a WordPerfect wordprocessor.
- Should you exhibit read or write errors with no specific
pattern, we suggest you clean the floppy drive heads of
both the Amiga and MS-DOS computers.
DEVICE ERROR CODES
The following is a list of most of the device error codes
supported.
Err# Error Name Description
----------------------------------------------------------------
-1 IOERR_OPENFAIL device/unit failed to open
-2 IOERR_ABORTED request aborted
-3 IOERR_NOCMD command not supported
-4 IOERR_BADLENGTH not a valid length
20 TDERR_NotSpecified general catchall
21 TDERR_NoSecHdr couldn't find any sectors on track
22 TDERR_BadSecPreamble bad sector header
23 TDERR_BadSecID bad sector header
24 TDERR_BadHdrSum sector header had incorrect CRC
25 TDERR_BadSecSum data had incorrect CRC
26 TDERR_TooFewSecs couldn't find enough sectors
27 TDERR_BadSecHdr bad sector header
28 TDERR_WriteProt can't write to a protected disk
29 TDERR_DiskChanged no disk in the drive
30 TDERR_SeekError couldn't find track 0
31 TDERR_NoMem ran out of memory
32 TDERR_BadUnitNum asked for a unit > 3
33 TDERR_BadDriveType not a recognized drive
34 TDERR_DriveInUse someone else allocated the drive
35 TDERR_PostReset user hit reset; awaiting doom
36 MDERR_OutofTracks out of physical tracks
37 MDERR_InvParam invalid parameter (MD_SETPARMS)
38 MDERR_IndexNotSync index signal not available
39 MDERR_WrongTrack drive head on wrong physical track