Can't reformat external drive - Disk Utility grayed out

Discussion in 'Mac Basics and Help' started by pkoch1, Jul 23, 2012.

  1. pkoch1 macrumors 6502a


    Oct 3, 2007
    Hi all,

    I have a stubborn external drive. I can access the files, but get errors sometimes and the permissions are all messed up. It shows as read-only now and I can't change it. In Get Info, after I click the padlock, all the names are grayed out and I can't change anything. I have a backup of the drive, so I tried to just reformat it, but those options are also all grayed out in Disk Utility. Any ideas?
  2. Br0kenWheel macrumors newbie

    Jul 26, 2012
    Maine, USA
    I notice that in Lion I have to, after opening the lock, triple-click on the permission I want to change, at least the first time. Like where it says 'Read only'. Single clicking doesn't always work.

    My favorite application to change ownership and permissions is BatChmod, its freeware (nagware). BatChmod is basically a GUI to unix 'chmod' and 'chown'. These commands can be used in Terminal, but I'm not geeky enough to give instruction :eek:.
  3. Edie Brickell macrumors member

    Apr 22, 2010
    Try to use any third party tool to reformat your drive if disk utility is able to reformat it.

Share This Page