Symptom
A downloaded driver package will not fit onto a single floppy diskette. The file size is greater than 1.44 megabytes.
Configuration
Any ThinkPad system attempting to transfer files greater than 1.44 MB in size from one computer system to another.
Solution
IBM has created a utility program called CHOPPER, which will split a large file into smaller files that will fit onto multiple floppy diskettes. These diskettes can then be taken to a target system and using the same CHOPPER utility, recombined into the original single file. When CHOPPER splits a file into smaller files, it will COPY itself onto the first diskette as UNCHOP.EXE.
Installation instructions
Download CHOPPER.EXE to one of the following locations depending on which operating system you are using:
- Destination for DOS users, C:\DOS or the drive and directory where DOS is installed.
- Destination for Windows 3.1/95/98 users, C: \WINDOWS or the drive and directory where Windows is installed.
- Destination for Windows NT 4.0 users, C:\WINNT or the drive and directory where Windows NT 4.0 is installed.
- Destination for OS/2 users, C:\OS2 or the drive and directory where OS/2 is installed.
To download the CHOPPER.EXE program, click here .
Instructions for splitting up a large file to multiple floppy diskettes
Here is the syntax for using the CHOPPER program for splitting a file. (This information can also be found by running CHOPPER.EXE with no parameters)
CHOPPER file [dest] [/K:size]
Where:
file : File name to be split.
dest : Destination for the split files. (default A:)
size : Split file size in KB (default 1024)
- Open a DOS command prompt. This is especially important for OS/2 and Windows NT users. (To open a DOS command prompt in Windows NT, click Start -> Run and type COMMAND.COM. then press enter.)
- Change to the directory where the large file that needs to be transferred is located.
- Enter the following command:
CHOPPER filename_to_be_transfered
The chopper program will tell you how many BLANK, FORMATTED diskettes are needed and will offer the option to stop and prepare them to ensure that the diskettes are blank, with no important data, and to allow them to be formatted if necessary. When you have the diskettes ready, simply retype the CHOPPER command given above.
- When prompted to insert diskette #1 insert one of the BLANK, FORMATTED diskettes into the floppy drive and press Enter to continue. CHOPPER will then copy itself to the first diskette as the file UNCHOP.EXE.
- When prompted, remove the diskette and label it as Diskette #1. Follow the prompts on the screen for the next diskette(s). When it has finished splitting the files, it will give you the command to run on the other computer system to which you wish to transfer the file.
Instructions for restoring a chopped file from multiple floppy diskettes
Do the following on the target computer that you wish to restore the file to.
Here is the syntax for using the CHOPPER program for joining a split file back together. NOTE: During the splitting process, CHOPPER.EXE will copy itself to the first diskette as UNCHOP.EXE. (This information can also be found by running CHOPPER.EXE with no parameters.)
UNCHOP [file.000] [dest]
file : File name to be joined
dest : Destination for the split files. (current directory will be default destination if the dest parameter is not specified)
- Open a DOS command prompt. This is especially important for OS/2 and Windows NT users. (To open a DOS command prompt in Windows NT, click Start -> Run and type COMMAND.COM then press Enter.)
- Create a TEMP directory by typing md TEMP and press Enter.
- Change to the TEMP directory by typing cd TEMP and press Enter.
- Put Diskette #1 into the floppy drive and enter the following command:
A:\UNCHOP A:\filename.000
Then, follow the prompts that appear on the screen.
NOTE: You must put the .000 at the end of the filename!
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