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    fix for A03 OS not found

    Discussion in 'Alienware' started by xentillin, Jan 12, 2010.

  1. xentillin

    xentillin Notebook Enthusiast

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    if after you update the BIOS the OS isn't found and you have a raid 0 hard drive check that your RAID is turned on by pressing F2(?) during startup.

    for some reason my raid was turned off by the bios update and it was only recognizing the harddrive that didn't have my OS.

    hope that helps.
     
    xentillin, Jan 12, 2010
    #1
  2. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    The bios update resets your bios to factory default which doesn't include RAID.
     
    Mandrake, Jan 12, 2010
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  3. surfasb

    surfasb Titles Shmm-itles

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    Sounds reasonable.
     
    surfasb, Jan 12, 2010
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  4. Koshinn

    Koshinn Notebook Deity

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    This happened to me, but I didn't have a RAID setup at all, so I reinstalled Win7, which seemed to fix it >.>
     
    Koshinn, Jan 12, 2010
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  5. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    Did you by any chance try running the Windows 7 repair options first?
     
    Mandrake, Jan 12, 2010
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  6. Koshinn

    Koshinn Notebook Deity

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    Yeah, didn't help at all.
     
    Koshinn, Jan 12, 2010
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  7. KracsNZ

    KracsNZ Notebook Evangelist

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    Worse still if you have RAID 1. Windows will still boot, install drivers for the new drive controller and basically kill your mirror :p.
     
    KracsNZ, Jan 12, 2010
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  8. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    Raid 1 should be 100% safer because you only need one disk to work. This means you can pull one disk before even doing the upgrade. Simply re-mirror once the upgrade is complete.
     
    Mandrake, Jan 12, 2010
    #8