How can I revert a Live USB back to a regular USB?

Annie August 17, 2011
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I was reading the article How To Create A Portable Ubuntu Installation USB On The Mac How To Create A Portable Ubuntu Installation USB On The Mac How To Create A Portable Ubuntu Installation USB On The Mac Read More , which worked great. Now I’m wondering how do I get my USB back to just a regular uSB? I am working on a Mac. Thank you!

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  1. Jeffery Fabish
    August 24, 2011 at 1:47 am

    Hi Annie,

    Sorry for the last responce! Please try the command "diskutil mountDisk /dev/diskN" without quotes, then retry the steps I provided above.

    • Annie
      September 6, 2011 at 11:25 pm

      Figured it out, but thanks for responding!

  2. Annie
    August 18, 2011 at 3:22 am

    I tried both just dragging the files into the trash & erasing them through Disk Utility and neither of them work. When I try to put it in the trash I get "Unexpected code (Error -61)". With Disk Utility, the erase tab is there, but all the options are grayed out.

    I think the cause of the problem is, when I was originally creating the live usb, one of the steps (linked above) was "diskutil unmountDisk /dev/diskN". Is there a terminal command that might work to undo that?

    That's just my guess at the problem, but I'm open to other suggestions.
    Thanks

  3. Mulder
    August 17, 2011 at 2:40 pm

    The appropriate file system for mac is HFS+, not FAT32.

    • Jeffery Fabish
      August 17, 2011 at 7:51 pm

      Macs can viably read FAT32, it's a universal file system where as HFS is geared only towards macs and may not be recognized on other systems. As I doubt he is storing his MBR on his flash drive, I think it's safe to assume that only non-critical files will be stored on it, which is a perfect job for FAT32.

  4. Jeffery Fabish
    August 17, 2011 at 9:07 am

    Just delete the files off the USB or format it (essentially the same thing). 

    Go to applications -> utilities -> Disk Utility and click on your USB Drive.  A dialog will popup, choose the erase tab. Make sure you mount the appropriate file system, such as FAT32.

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