Q: Black screen on reboot with Yosmite

Hi, I have an iMac 2013 and I just upgraded from Maverick to Yosmite directly , apparently without errors. But every time I reboot, the music plays and get a black screen with the apple and progress bar and finally loads the Yosmite , is it normal? In Maverick came out apple logo on the blank screen and quicklyboot

Sorry for my bad English and thanks

iMac, OS X Yosemite (10.10)

Posted on Oct 17, 2014 1:10 PM

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Q: Black screen on reboot with Yosmite

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by Eric Root,Helpful

Eric Root Oct 17, 2014 1:27 PM in response to ilpacus
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iTunes

Oct 17, 2014 1:27 PM in response to ilpacus

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

Startup Issues - Resolve

Startup Issues - Resolve (2)

Startup – Computer Stops or Delays
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by ilpacus,

ilpacus Oct 18, 2014 9:43 AM in response to Eric Root
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Oct 18, 2014 9:43 AM in response to Eric Root

Hi, thanks for the response and I read the links. I was running tests:
- Verifying permissions and disk ... and nothing.
- Yosemite Restore cleaned and maintained the same restart
- I even went back to OSX Lion and the restart was a clear display and gear.
- From Lion upgrade to Yosemite, and came back the restart with the dark screen and progress bar

Therefore, the restart of or Yosemite is right (like the Iphone) or there is an error with the installer Yosemite because I discard hardware problems ...
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Q: Black screen on reboot with Yosmite

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by Eric Root,★Helpful

by ilpacus,

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by Eric Root,Helpful