msos2.hlp (Table of Contents; Topic list)
Important Notice
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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
SYS1310
SYS1310
 
Explanation
 
The FORMAT command was entered without a drive letter.
 
Action
 
Retry the FORMAT command and include the letter of the drive to be
formatted.