My Mac Pro will not start up. I have done everything I have read to do online and it still stops before finishing startup. Even with a start up disc!
Any help?
PS: I have lots of other photos showing things I have tried if anyone is interested.
iMac 21.5" 4K, macOS 10.14
- Once booted in Recovery Mode, open Terminal, and run the following command: csrutil disable
- Reboot the system.
- Once the system reboots, it should now successfully boot into your install of OS X. Now, you'll need to download the program found here.
- Run the program, follow the prompts, and enter your password when prompted.
- Once the tool finishes running, your system should now run without the dedicated graphics, and should work completely normally.
the program's name is:
MacBook Pro dGPU disabler.app
... probably still in the downloads folder. Re-running it is not required, just a matter of interest.
So Ok
I purchased a Zip drive to start up from and I have the exact same results as with the DVD. It starts to load and then goes to the blue screen as noted in my first photo.
Any help?
Interesting..
No I don't use an external display or edit videos.
Yes I'd like to try the work-arounds you might be able to send.
Thanks!
Hi Grant
The blue screen is what appears after an option hold restart and selecting/launching the instal macOS High Sierra as you can see in the photo.
If I use the same option hold and select to launch the the HD itself next comes the apple logo is gray and has a strange progress bar with a couple places it's not defined well or has some overlapping lines. After partial progress the screen switches to an all white screen then turns a little gray before repeating self restarting till it simply freezes on the grayish color screen. Btw... the same things happen to both either one when wifi is on.
I hope this is helpful...
Blue Screen Freeze on Start Up for Mac Pro
