After Installing OS X EL CAPITAN....External Disks

Discussion in 'OS X El Capitan (10.11)' started by mkkuppa, Oct 1, 2015.

  1. mkkuppa macrumors newbie

    mkkuppa

    Joined:
    Oct 1, 2015
    #1
    I just updated my OS to OS X EL CAPITAN......unable to see my external disks connected to my IMAc.....

    All the boxes are checked in FINDER PREFERENCES...
    Also checked thru DISK UTILITY.......the two disks are graded and unable to do anything on them......

    Can anybody help
     
  2. macmedal macrumors regular

    Joined:
    May 17, 2008
    Location:
    Britannia
    #2
     
  3. macmedal macrumors regular

    Joined:
    May 17, 2008
    Location:
    Britannia
    #3
    Try a NVRAM reset. I had a similar issue with Yosemite not recognising an external drive on my iMac, which it had previously back up to, that sorted it out for me.
     
  4. mkkuppa thread starter macrumors newbie

    mkkuppa

    Joined:
    Oct 1, 2015
  5. mkkuppa thread starter macrumors newbie

    mkkuppa

    Joined:
    Oct 1, 2015
    #5
    How to do NVRAM reset?
     
  6. giancoes macrumors member

    giancoes

    Joined:
    Jul 19, 2015
    Location:
    Puerto Rico
    #7
    Im having problems transferring data onto my external hard drive after upgrading the drive connects fine but I cannot transfer anything onto it i thinks its become read only but it was working fine before upgrade. Any suggestions?
     
  7. mkkuppa thread starter macrumors newbie

    mkkuppa

    Joined:
    Oct 1, 2015
    #8

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