Microsoft KB Archive/96441

= MS-DOS 6 and later Require ASPI4DOS.SYS Version 3.1 or Later =

Article ID: 96441

Article Last Modified on 11/19/1999

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APPLIES TO


 * Microsoft MS-DOS 6.0 Standard Edition
 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.21 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

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This article was previously published under Q96441



SYMPTOMS
If you have an Adaptec SCSI controller card that requires the ASPI4DOS.SYS device driver, you may receive the following error message if you try to install or run MS-DOS:

unrecoverable error: hard disk is not readable

NOTE: You may also experience problems with other MS-DOS components.



CAUSE
This error occurs if you are using a version of the ASPI4DOS.SYS device driver earlier than version 3.1.



WORKAROUND
To avoid these problems, upgrade to version 3.1 or later of the ASPI4DOS.SYS device driver before you install MS-DOS 6.0 or 6.2.

You may be able to work around the problem by using the following procedure:
 * 1) Run Setup with the /F parameter to create an MS-DOS 6.0 or 6.2 startup disk. For example, type a:setup /f at the MS-DOS command prompt and then press ENTER.
 * 2) Restart your computer with the MS-DOS 6.0 or 6.2 startup disk you created in drive A in step 1.
 * 3) Run Setup from Disk 1 of the MS-DOS 6.0 or 6.2 Upgrade disks.



MORE INFORMATION
The products included here are manufactured by Adaptec, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: 6.22 6.00 6.20 3RDPARTY stepup upgrade step-up

Keywords: KB96441

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