Maximum number of Logical DOS Drives installed
Cause: FDISK. DOS supports only drive letters A through Z. You have created the maximum number of logical
drives (24).
Action: If you need to define a new logical drive, you must first delete an existing logical drive to free a drive
letter.
Memory allocation error
Cannot load COMMAND, system halted
Cause: DOS. A program destroyed the area in which DOS keeps track of available memory, or there is no
longer enough memory to load the command processor.
Action: Restart PC DOS on your system. Reducing the number of buffers, device drivers, and resident programs
on your system might alleviate this error.
Memory control blocks destroyed
Cause: COMMANDS. PC DOS detected a memory problem.
Action: Restart your computer.
Missing operating system
Cause: FDISK. When you tried to start PC DOS from a hard disk, the startup procedures determined that the
DOS partition was marked "startable," but the disk does not contain a copy of PC DOS.
Action: Start PC DOS from the Setup diskette of your installation diskettes and use FORMAT with the /s switch
to place a copy of PC DOS on the hard disk. Back up your files before doing the FORMAT or they will be lost.
Must enter both /T and /N switches
Cause: FORMAT. You have entered either the /t or /n switch by itself.
Action: These switches must be entered together. Re-enter the command using both switches.
Must have xxxxxx KB free to continue the operation
Cause: UNCOMP or SDEFRAG. The program has determined that there is not enough free space available to
complete the operation.
Action:
1. Write down the number of KBs needed.
2. Exit to the DOS prompt.
3. Run CHECK x:/d on the drive, where x: is the compressed drive.
4. Note the physical free space. This is the number to which UNCOMP/SDEFRAG refers. The physical free space
is listed under the column of data about the STACVOL.
5. Delete or move files from the compressed drive and use CHECK to verify that enough physical free space is
there to continue the UNCOMP/SDEFRAG operation.
Must specify COM1, COM2, COM3 or COM4
Cause: MODE. You incorrectly entered MODE option 4.
Action: Retry using correct option.
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