MS-DOS 6 Upgrade Setup Err Msg: Current Drive Must Be Set to A (97420)



The information in this article applies to:
    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 Q97420

SYMPTOMS

You may receive the following error message if you attempt to install MS-DOS from a drive other than A:

Current Drive Must be set to A

CAUSE

This error message can occur when one or more of the following conditions exists:
    Your CMOS settings are incorrectly set and do not include your floppy disk drive.
    You are using a high-capacity optical drive with removable disks (called a "floptical" drive) and the device driver for it is incompatible with Setup.
    You are using an external floppy disk drive and the device driver for it is incompatible with Setup.
    You are using a 2.88-megabyte (MB) floppy disk controller. (Some of these use extended BIOS chip sets that are incompatible with Setup.)

WORKAROUND

If your drive C has at least 9 MB free space, you can work around this problem by copying the MS-DOS 6 Upgrade files to your hard disk drive and running Setup from your hard disk drive. To do this, use the following steps:
    Create a temporary directory on your drive C. For example, type MD DOSTEMP at the MS-DOS command prompt and then press ENTER.
    Copy the MS-DOS Upgrade files from each floppy disk to the DOSTEMP directory. For example, type copy b:\*.* c:\dostemp at the MS-DOS command prompt and then press ENTER.
    To run Setup, type c:\dostemp\setup at the MS-DOS command prompt and then press ENTER.

Modification Type: Major Last Reviewed: 11/26/1999
Keywords: KB97420