The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
SYS0154
SYS0154Explanation
Too many characters were entered for the volume label.
Action
Retry the operation using not more than the maximum number of characters.