is it necessary to add iastor to the Dell booot Config.sys?

Posted on 2009-02-22
Last Modified: 2013-11-14
I have a Dell Vostro 1710 with two 160 GB hard drives with the first with one NTFS partition and the second with two equal 80 GB partions - the first NTFS and the secdond FAT32.  A normat boot disk shows only one drive "C:" which is the FAT32 partition.  How do you properly creat a Dell boot disk which shows all partions?

Question by:BobS41185
    LVL 38

    Accepted Solution

    When you say a "normal boot disc" are you talking about:
    1. A floppy disk or a bootable CD?
    2. Created in Windows 98, ME, 2000, XP?

    Even a boot floppy, or a bootable CD based on bootable floppy disk emulation, that is created in Windows XP still only uses Windows ME DOS 8 which does not recognise NTFS partitions.

    IASTOR.SYS is just the driver that allows the boot floppy to recognise and work with SATA, and is part of the "Intel Matrix Storage Manager" RAID Drivers:

    This is intended to be loaded during the very early stages of Windows XP Boot where you see the "F6 to load 3rd party drivers". In itself, this still will not allow the boot floppy to recognise NTFS partitions.

    There ARE boot disks that contain utility programs to see content on an NTFS partition.
    Uses the free download NTFS4DOS Personal from Avira:


    You may find these pages helpful:

    Most people who need to be able to boot a system and load NTFS partitions create Linux "Live CDs". A good example is Knoppix:

    You download the *.ISO file and oad it into your CD Burning software to create a bootable CD/DVD that loads into its own operatuing system environment.

    Other universal approaches are:

    The Ultimate Boot CD:

    Microsoft's latest replacement for the ERD Commander that runs a localised version (Preinstall Environment) of Windows XP:
    Microsoft Diagnostics & Recovery Toolset (30 Day Evaluation) Version 5 (64.2 MB)

    Hope this helps
    LVL 1

    Expert Comment


    I think you are making a DOS boot disk. DOS nativly can only access FAT and FAT32 partitions.
    If you want to access your ntfs partitions from DOS, you need to use third party software.

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