Erasing bootable USB. Help Please.

Discussion in 'macOS' started by sangermano, Dec 18, 2015.

  1. sangermano macrumors newbie

    Joined:
    Dec 18, 2015
    #1
    Using the dd command in terminal I tried creating a bootable USB drive for ubuntu and other operating systems. The disk was formatted but is not recognised as a bootable disk when I reboot the computer. I would like to erase / reformat the USB so that I can try again but disk utility does not allow me to partition the disk. Please help. How can I set this USB drive to factory default?
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #2
    Instead of trying to partition, go to the erase tab and you should be able to reformat from there.
     
  3. sangermano thread starter macrumors newbie

    Joined:
    Dec 18, 2015
    #3
    No luck. I've tried all I can using disk utility. I am guessing I'll need a terminal command that can manage to get past permission restrictions?
     
  4. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #4
    When you are in that erase tab, make sure you select the drive itself above the partition, and not the partition.
     
  5. sangermano thread starter macrumors newbie

    Joined:
    Dec 18, 2015
    #5
    It only shows me the drive. No partitions available.
     

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