Mac Pro Sierra install woes

Discussion in 'Mac Pro' started by LogicalVue, Jul 20, 2016.

  1. LogicalVue macrumors member

    Joined:
    Aug 28, 2007
    Location:
    USA (Maine)
    #1
    So I had the first Sierra public beta working on my Mac Pro (4,1; firmware upgraded to 5,1) with an Nvidia GTX750ti connected to a 4K (UHD) Samsung display. I had it installed on its own internal SSD.

    When the 2nd public beta was announced this afternoon I booted into Sierra to turn off the Nvidia web driver to prepare to do the upgrade. But after doing that, Sierra will not boot. The progress bar under the Apple logo gets to about 60% then it just restarts and I get the "your computer crashed" message.

    Booting to the Sierra restore drive does work. A safe boot also crashes.

    I did have a similar problem when I before I got the first public beta working. In the end I had to disable the Nvidia web driver in my El Capitan install, which for some reason allowed Sierra to boot. But now that trick is not working now and I'm out of ideas. I've tried:
    • Resetting VRAM
    • Resetting SMC
    • Re-installing Sierra public beta 1
    But nothing has worked. Does anyone have other suggestions for me to try? It certainly feels like a graphics driver issue to me.
     
  2. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #2
  3. LogicalVue thread starter macrumors member

    Joined:
    Aug 28, 2007
    Location:
    USA (Maine)
    #3
    Thanks for the suggestion. I do still have my old ATI Radeon card, but rather than swap that in (which is more of a pain) I decided to swap in a new drive and install Sierra on it fresh. This worked. Sierra installed and booted properly using the stock OS X driver. Alas, other issues persist:
    • If I enable the Nvidia web driver, then Mail crashes when I try to view an email and Messages crashes at launch. Both seem to report an issue with "Metal" something or other in the crash log, so it seems graphics related. Both worked before I installed and enabled the Nvidia web driver.
    • I cannot get the Public Beta 2 to start downloading. It shows in the App Store, but when I click "Update" it just sits at 0 bytes and says "calculating". I left it overnight (8 hours) with no change.
    So there appears to be lots of bugs remaining in either Sierra, the Nvidia driver or both, at least when it comes to my 750ti (which is flashed for OS X).
     
  4. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

    Joined:
    Jul 4, 2015
    #4
    4,1 can't download Sierra from the App Store. You would need the installer downloaded from a supported machine.
     
  5. LogicalVue thread starter macrumors member

    Joined:
    Aug 28, 2007
    Location:
    USA (Maine)
    #5
    Hmm. Perhaps you're right, but I thought the 5,1 firmware I've applied worked around that issue.
     
  6. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

    Joined:
    Jul 4, 2015
    #6
    The firmware hack only works around the installer. At least for now. The release version might need a patcher.
     
  7. LogicalVue thread starter macrumors member

    Joined:
    Aug 28, 2007
    Location:
    USA (Maine)
    #7
    I noticed on another thread you said you were able to upgrade to DP2 on a firmware hacked machine. Did you not go through the App Store Update for that? If not, how did you install it? I can certainly switch to the DP builds if that might work better than the Public Beta.
     
  8. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

    Joined:
    Jul 4, 2015
    #8
    Download the DP/PB on a newer Mac and then copy the installer to the cMP.
     
  9. LogicalVue thread starter macrumors member

    Joined:
    Aug 28, 2007
    Location:
    USA (Maine)
    #9
    I appreciate the tip and I hate to be dense, but I don't see how you can download the installer for the Public Beta 2 update separately. It is only available via the App Store update from what I can see.
     
  10. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

    Joined:
    Jul 4, 2015
    #10
    Ah, all I know is that the DP updates are working. PB is best to check the Sierra forum, in the section about running on unsupported Macs.
     
  11. LogicalVue thread starter macrumors member

    Joined:
    Aug 28, 2007
    Location:
    USA (Maine)
    #11
    Yep, the Dev Preview builds are working. I wiped my drive and did a Sierra install using the Dev Preview and all is now working fine. DP3 installed with no trouble and Mail and Messages work with the Nvidia web driver.

    So apparently this is some sort of weird issue with the Public Beta. I'm surprised they behave differently.
     
  12. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

    Joined:
    Jul 4, 2015
    #12
    It could be a strong sign that the final public release will be harder to install and also hard to update on a flashed 4,1
     
  13. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #13
    I have not tested with the Public Beta installers, but the Developer Preview downloads without an issue on a flashed 4,1. There's no reason to expect that the Public Beta is any different.
    --- Post Merged, Jul 22, 2016 ---
    There's no reason to do that, the flashed 4,1 is fine for downloading.
     

Share This Page