Yosemite - Grey screen and shut down

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Level 1

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Yosemite - Grey screen and shut down

I Upgraded to Yosemite last night. Now When I boot the machine I see Grey screen with a time bar and then blank white screen and then it shuts down

MacBook Pro (15-inch Late 2011)

Posted on Nov 19, 2014 6:19 PM

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Answer 1

Aug 13, 2015 2:09 PM in response to MickMurphy

I have this same problem. Command + R on start up does nothing. Command+Option+R (internet recovery) asks me to connect to a network then brings me to loading bar with a spinning globe for about 8 minutes the bar fully loads and I then get the blank grey screen and eventual shutdown. D on start up doesn't work. Command+Option+P+R has no effect. Shift or Option+Shift has no effect.

The big problem is that my files are not backed up, I do have a bootable install drive available but I don't want to erase my files. What should I do?

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Answer 2

iW00

Level 6

8,488 points

Aug 13, 2015 2:22 PM in response to MickMurphy

Your Mac has some Startup Issues. Possibly caused due to some issues on your Mac which OS X Installer could not resolve.

Read this great document as you will find clues what to do in situations where Mac do not boot properly: ..Step by Step to fix your Mac

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Answer 3

Eric Root

Level 10

684,063 points

Aug 14, 2015 5:25 PM in response to MickMurphy

Startup - Gray, Blue or White screen at boot, w/spinner/progress bar

Startup -Gray screen at startup - Yosemite

Startup Issues - Resolve

Startup Issues - Resolve (2)

Startup Issues - Resolve (3)

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Answer 4

Aug 16, 2015 6:34 PM in response to Eric Root

I tried everything I could find, including booting from an external drive that worked on another computer nothing worked. I brought it to the professionals who diagnosed it as a failed GPU which is endemic to the early 2011 model macbook pro. This will be the second time the GPU is replaced for free by apple. Hopefully nothing else is broken.

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