MS-DOS FORMAT "/1" Switch Should Not Be Used on 1.2 MB Drive (49808)



The information in this article applies to:

  • Microsoft MS-DOS operating system 3.1
  • Microsoft MS-DOS operating system 3.2
  • Microsoft MS-DOS operating system 3.21
  • Microsoft MS-DOS operating system 3.3
  • Microsoft MS-DOS operating system 3.3a
  • Microsoft MS-DOS operating system 4.0
  • Microsoft MS-DOS operating system 4.01
  • Microsoft MS-DOS operating system 5.0
  • Microsoft MS-DOS operating system 5.0a
  • Microsoft MS-DOS operating system 6.0
  • Microsoft MS-DOS operating system 6.2
  • Microsoft MS-DOS operating system 6.21
  • Microsoft MS-DOS operating system 6.22

This article was previously published under Q49808

SUMMARY

The /1 switch of the FORMAT command should only be used on a 360-kilobyte (K) disk drive. It should not be used on a 1.2-megabyte(MB) disk drive. If the /1 switch is used on a non-360K drive, FORMAT returns the following error message:
Parameters not compatible. Format failure.
The purpose of the /1 switch is to format 160K and 180K disks. It cannot be used in conjunction with the /4 switch.

Modification Type:MajorLast Reviewed:5/12/2003
Keywords:KB49808