No Admin or password

Discussion in 'OS X Yosemite (10.10)' started by AfterglowMP, Jul 25, 2015.

  1. AfterglowMP macrumors member

    Aug 20, 2010
    I'm experimenting with installing Yosemite on a new PCIe SSD I've installed in my Mac Pro 5,1 6 core 3.3ghz. My main system is still Mountain Lion and it works beautifully - is stable, fast - but I wanted to see what apps I could migrate to Yosemite on the new drive with a view finally to upgrading.

    When I switch systems and Yosemite boots on the new drive, I'm presented with my admin name and asked for my password and I enter this successfully but then when I go to change settings in preferences and elsewhere and need to unlock, it asks for Administrator's Name and Password. There's nothing in the Admin space so I naturally put in the Admin name (the same one I'm presented with at the boot up) and then the same password but it won't accept these. What is going on???? To return to my old Mountain Lion system I then have to restart and press N to select the old drive.
  2. Bruno09 macrumors 68020

    Aug 24, 2013
    Far from here

    Do you have by any chance FileVault enabled on the Yosemite drive ?
  3. !!! macrumors 6502

    Aug 5, 2013
    That happened to me. It is an issue with OS X since Lion. You'll need to either create a new admin account or erase and reinstall OS X.
  4. AfterglowMP thread starter macrumors member

    Aug 20, 2010
    Thanks, I'll check the Filevault next time I reboot into Yosemite.

    Re creating new Admin account, I'm not sure that is possible since I can't unlock the Finder permissions - as I wrote above, it won't accept my Admin name or password and I'm just relieved I found out how to get out it and back to my old OS.
  5. !!! macrumors 6502

    Aug 5, 2013
    Here's how to create a new admin account with no admin:

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