Sierra installed but very broken

Discussion in 'macOS Sierra (10.12)' started by 6836838, Jul 10, 2016.

  1. 6836838 Suspended

    Joined:
    Jul 18, 2011
    #1
    Anyone else get this screen after installing? The login screen came up, but after entering details, I get this 'bricked' screen.

    [​IMG]
    --- Post Merged, Jul 10, 2016 ---
    I installed the public beta from App Store from El Cap latest beta. Is there anything I can do, or is it Time Machine recovery time?
     
  2. foraging_ferret macrumors newbie

    foraging_ferret

    Joined:
    Aug 4, 2015
    Location:
    London, UK
    #2
    How far does it get in verbose mode? Hold down Command+V when booting and take a photo.
     
  3. 6836838 thread starter Suspended

    Joined:
    Jul 18, 2011
    #3
    Good shout. Doesn't like my BT4 USB dongle. Unplugged and trying again.
    --- Post Merged, Jul 10, 2016 ---
    Hmm unplugged and still not happy.

    After unplugged...

    [​IMG]

    Then I wait and it goes currupt:

    [​IMG]

    So how can I now switch back to the internal BT controller. It's seemingly looking for it still even after disconnecting? I was using a BT single on my MBP 2010 for MIDI stuff.
    --- Post Merged, Jul 10, 2016 ---
    Trying safe mode. Will report back.
    --- Post Merged, Jul 10, 2016 ---
    Same issue.
    --- Post Merged, Jul 10, 2016 ---
    Does anyone know how to disable Bluetooth in recovery mode prior to boot up?
     
  4. foraging_ferret macrumors newbie

    foraging_ferret

    Joined:
    Aug 4, 2015
    Location:
    London, UK
    #4
    OS X tends to load graphics drivers just after bluetooth. What hardware are you running?
     
  5. MichaelDT macrumors member

    Joined:
    Aug 18, 2012
    #5
    You are missing a graphics driver for sure. Try booting recovery and if it loads then copy all graphics kexts via terminal to main partition and delete or rebuild kext cache.
     
  6. 6836838 thread starter Suspended

    Joined:
    Jul 18, 2011
    #6
    I've gone back to recovering El Cap. I'll try again in beta 3. Standard Mid 2010 15inch but with a Samsung EVO SSD running latest firmware.

    Thanks for your help.
    --- Post Merged, Jul 10, 2016 ---
    Recovery did load fwiw
     
  7. 6836838 thread starter Suspended

    Joined:
    Jul 18, 2011
    #7
    So I installed on a new partition and everything is fine. I've also rebuilt the kexts cache etc using '
    sudo touch /System/Library/Extensions/ && kextcache -Boot -U /' (after disabling crs). I'm too scared to upgrade to Sierra now, so I'm working to do a clean install on the new partition and will ultimately Time Machine restore Docs and Apps over to there from El Cap.
     
  8. grahamperrin macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #8
    I encountered the prohibition sign more than once. If I recall correctly, the problem was not limited to Sierra.

    https://forums.developer.apple.com/thread/49672#146867

    The visual corruption, in the second of your photographs in post 3, was part of that entertainment.

    In my case it was not a missing graphics driver.

    I'm glad that you worked around the problem in your case. If it recurs, feed the bug to Apple.
     

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