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  1. #1

    Member Since
    Mar 12, 2012
    Erasing Partitioned Flash Drive
    Earlier today I decided to use a flash drive and load the Lion Recovery Assistant on there - anyway changed my mind and now I want to use my flash drive as just a flash drive. It seems though that recovery has partitioned my flash drive and I can now only access 700mb of it.

    I went into disk utility and tried to erase and re-format the whole thing, and had the error Partition failed with error: could not open the device or something like that. I can erase the 700mb part but not the other. I've tried multiple times with multiple formats, and on a Windows PC and nothing has worked.

    Does anyone know how I can erase and format the whole drive?

  2. #2

    Zoolook's Avatar
    Member Since
    Sep 24, 2006
    Brooklyn, New York
    15" 2014 MacBook Pro, i7 2.5Ghz, 16GB RAM, 512GB SSD; iPad 3, iPhone 6
    I am not at a Mac right now so might get the terminology wrong, but in Disk Utility, I am sure there is a function to remove all partitions then repartition as a single partition. Right now, you probably have two partitions on the drive.

    If you can get that far, it's just a case of formatting the new single partition as you require.
    In the land of the blind, the one-eyed man is stoned to death.
    - Joan D. Vinge

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