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User profile for user: Dudemario
Dudemario Author
User level: Level 1
26 points

Macbook pro won't boot up, stuck at loading screen

I'm having trouble booting up my mac, stalling at the progress bar. When booted regularily, the progress bar stops just about after the apple logo. When booted in safe mode (shift), the bar stops about 5/6 of the way. It boots up in recovery mode (command+R) fine so I have tried using first aid on all disks and reinstalled OS X. However, even after doing so, the situation hasn't changed. I've tried turning off the wifi and rebooting but to no avail. Unfortunately, I don't have a backup saved so I would extremely dislike having to erase everything, but if that's what it comes to.... In case it helps, It's a 13-inch 2012 MacBook Pro running the most recent update for OS X El Capitan. It should be OS X, 10.11.6. Ask for anything else and I'll be glad to give it to you if I can still find it. Thanks a lot.

Posted on Jul 5, 2017 12:46 PM

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User profile for user: Tesserax
Tesserax
User level: Level 10
148,667 points

Posted on Jul 5, 2017 1:16 PM

When booted regularily, the progress bar stops just about after the apple logo.

At this point the following have been accomplished successfully:

  1. Power-On Self Test (POST), i.e, the MacBook Pro passed it hardware and RAM checks.
  2. The BootX booter file is located and run. Its primary job is to load the kernel environment. If this is successful, then the Apple logo will appear on the screen.
  3. Next kernel extensions are being loaded and you see the start of the progress bar. These are mainly device drivers that are located in the /System/Library/Extensions folder.
  4. Then comes the startup daemons. These are used to start services that must run at startup in order to have these services automatically available to the user.


I would guess that the issue is either at step 3 or step 4 above ... most likely step 3. Why? Because the Safe Mode boot would have disabled most, if not all, of the extensions or daemons from starting up.


See if any of the following articles can help:

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Macbook pro won't boot up, stuck at loading screen

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