Currently Being ModeratedMar 16, 2013 2:37 AM (in response to zubatac75)
Hold Command and R keys while your Mac is starting to start in Recovery HD. Then, open Disk Utility, select your OS X partition on the sidebar and verify the disk. Is it OK? If not, repair it.
If it doesn't show any problem, the update damaged the operating system. Close Disk Utility and reinstall OS X. You won't lose anything you had stored before updating.
Sometimes, problems like this happen after a OS X update, and we don't know exactly their reasons. Maybe a third-party extension, maybe a corrupted OS X package, maybe a hard disk failure. To prevent problems like yours, I recommend to install a maintenance update as OS X 10.8.3 downloading the Combo version from the Apple webpage. This version gives less problems than the version you download from the App Store and it can be used to update all your Macs downloading that update once
Currently Being ModeratedMar 16, 2013 2:42 AM (in response to zubatac75)
You have to start in OS X to install it. Have you tried to verify the disk using Disk Utility? If not, do it.
Anyway, I hope that you have a backup, because you may have lost everything you had stored on the hard disk
Currently Being ModeratedMar 16, 2013 2:50 AM (in response to zubatac75)
If you have a backup, I recommend you to erase the hard drive and reinstall OS X. Definitely, it seems like a very serious problem, if the reinstallation without erasing the hard disk hasn't worked
Currently Being ModeratedMar 16, 2013 9:08 AM (in response to zubatac75)
I am sorry to hijack this post but I am having the same issue. I even reinstalled the OS and everything worked fine until updated to 10.8.3 again. Is there a solution for this or we should bypass this update?
iMac 2009 27"
Currently Being ModeratedMar 16, 2013 9:26 AM (in response to zubatac75)
Full fresh install wiped out everything. I didn't even used my backup, just installed 10.8.3 update. I get a grey screen. Verbose mode output "still waiting for root device".
I have no external drive connected.
Currently Being ModeratedMar 16, 2013 10:20 AM (in response to thunderace)
restored to 10.8.2 from time machine worked fine.
Updated with combo update to 10.8.3 presented the same issue
restored again to 10.8.2 worked fine
so It's quite obviuos that the problem is within the 10.8.3.
it's a little bit ridiculous that after so many betas some users have this really seriuos issue..
i really hope in an update as soon as.
oh yes i have an MBP 15" 2,53 Core 2 Duo mid 2009
Currently Being ModeratedMar 16, 2013 10:59 AM (in response to zubatac75)
I'm having a crisis too and I think it's the same problem. I've just updated my Mac Pro from 10.8.2 to 10.8.3 and since then my 2 monitors stay black. I tried reseting the PRAM, nothing then put it into sleep mode and several times took it out of sleep...all of a sudden on the reboot I managed to get the screens to light up. How do I fix this? It's driving me nuts....
Currently Being ModeratedMar 16, 2013 1:17 PM (in response to zubatac75)
Did you upgrade the system with a third party SSD? You may need to upgrade the firmware on that SSD.
I had this issue with an Intel X25-M I put into my system, and a firware update resolved the issue.