MY screen has been black w/spinning icon for 2days after trying to install Capitan on a new MacBook Pro
MacBook Pro with Retina display, OS X Yosemite (10.10.5)
Once you have it downloaded, it takes about half an hour to complete.
something has gone terribly wrong.
Reboot and see what happens.
If still problem what happened when you rebooted?
Had the same problem. Held in the power button until it turned off, and then restarted. The login screen and then the installation screen with the big x and a progress bar came immediately after rebooting.
It depends. It took me about 2 1/2 hours from start to finish. I have a wireless Internet connection, not something like ethernet, so I'm sure that contributed to the slowness, not to mention I upgraded the day it was released, so Apple's servers were more than likely filled to the gunnels. Obviously something has gone awry with your download, so my advice would be to reboot your computer and see what happens. If you're still running the previous OS, it obviously didn't take, and you can try again if you want to.
Try Safe Boot:
- Shut down your Mac
- Wait until your computer turns off and after that press the Power button
- Right after you hear the startup tone, press and hold the Shift key
- Release the Shift key when you see a grey Apple sign and the progress bar below this sign
- After your Mac boots up, restart it as you usually do.
If this does't help, I guess you need to reinstall OS X.
How long does it take to update to El Capitan
