Macbook Pro won't reboot after mountain lion installation.

I installed the new Mountain Lion o/s and the installation was sucessful. However, when the computer started to
reboot by itself, it just stuck on the grey screen with the logo and the turning wheel. It has been like this for hours.
What should I do to fix this problem? Please help. The computer was purchased during Christmas 2011.

Call Apple support and they can talk you through getting back to a restore.
It appeared that my disk was a little corrupt before performing the upgrade.  You should use diskutility to verify and repair your disk before doing this upgrade.
Or just hold the option key down on boot up to see if you can get to the restore utility.

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    Thank you for your prompt response.  I'll be honest I'm a retiree and a newbie to all of this stuff. I don't even know how to do a thread. (Embarassing) This is my first ever contact with the Apple Community so I'm slowly trying to figure this out as well. 
    As to your thread request, I'm assuming you want to read my post with HP.  Not knowing how to thread, I've copied it below.
    I have an Apple MacBook Pro laptop with Mountain Lion software.  I also have an Apple Airport Extreme.  My Internet service is AT&T.  AT&T just upgraded my service with a new modem/router (AT&T U-Verse).  Prior to the conversion, my wireless printer connection was working perfectly.
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    Thanks in advance!
    Re: Can't connect wirelessly HP Photosmart C4780 to MacBook Pro OSX  10.8.2 Mountain Lion.              
    I finally figured it out! (Sorry that I'm replying to my own posts btw, but I want to post the solution for anybody else with the SigmaplusEOL1 problem). If you have the SigmaplusEOL1 as your SSID when you  print the "Wireless Network Test Report", you do NOT need to return it (I know that's hassle for people).  To fix the problem, follow these steps.
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    3) Change the SSID of your wirelss network to "SigmaplusEOL1".
    4) For the Security option for your wireless network select none (so that a password is not required to access your wireless network).
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    6) The report should also have a the IP Address of the printer (under Configuration Summary at the bottom). Type that IP Address in your browser to get to the printer's settings page.
    7) Click the "Network" Tab at the top.
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    12) Go back to your router's IP address and change the SSID and encryption password to whatever you changed the printer's SSID and password to.
    13). Reprint the Wireless Network Test Report. It should say the SSID is the same as your wireless, and everything is good.
    That's it. You should be good to go now.
    Re: Can't connect wirelessly HP Photosmart C4780 to MacBook Pro OSX  10.8.2 Mountain Lion.              
    Thank you for your prompt response.  This has been a totally frustrating experience.  I’ve spent at least 8 hours trying to fix this.  My HP problems and your initial steps were identical to mine.  I am by no means a tech person and my computer tech knowledge is minimal.  However I followed your steps to the best of my ability.
    I did get the SigmaplusEOL1 message.  I was able to get to Step 6 where the wireless network test report now reads – “HP printer settings do not match your wireless router settings.”  So I guess this is a step in the right direction.  However unfortunately the Configuration summary message for the IP Address reads – “Not Applicable”.  (Note: changing SigmaplusEOL1 to network name knocked out my Internet access.  Had to switch back to regular network name to regain access.)
    I’m at a loss as to what to do next.   Without the IP Address is it possible to move forward?  As I stated earlier, I’m not a tech person.  As to your steps 7, 8 and 9, I can’t find them on my computer or maybe I’m looking in the wrong places.  In System Preferences - Network, I have none of these steps.  If you’re referring to Airport Utility, with the changes in Mountain Lion, these steps are no longer there. If you’re talking about Safari, Firefox or HP, now I’m really lost.
    Finally, I don’t know if you can answer this or not.  If I ever get wireless working, do I still need Airport Extreme or is the AT&T U-Verse modem/router sufficient?
    Again thank you for your time and patience.
    Re: Can't connect wirelessly HP Photosmart C4780 to MacBook Pro OSX  10.8.2 Mountain Lion.                  
    Unfortunately I am unable to offer any further advice as I only followed the instructions listed on the other page.
    Finally, as to having WEP enabled, I don't know.  Don't even know where to look.  The best that I could determine is that my security is WPA/WPA2 Personal.
    I'm truly sorry about all of this.  Thank you for your time and patience.  After reading all of this and you change your mind, I would understand.

  • Macbook Pro won't boot after update

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    com.apple.driver.AppleSMCPDRC          1.0.0
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.ApplePolicyControl          3.4.5
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.AppleLPC          1.6.3
    com.apple.driver.SMCMotionSensor          3.0.3d1
    com.apple.iokit.IOBluetoothUSBDFU          4.1.7f4
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.1.7f4
    com.apple.driver.AppleSMCLMU          2.0.3d0
    com.apple.driver.AppleSMBusPCI          1.0.11d1
    com.apple.GeForce          8.1.6
    com.apple.driver.AppleUpstreamUserClient          3.5.12
    com.apple.nvidia.NVDAStartup          8.1.6
    com.apple.driver.AppleMuxControl          3.4.5
    com.apple.driver.AppleBacklight          170.3.5
    com.apple.driver.AppleMCCSControl          1.1.11
    com.apple.driver.AppleUSBTCButtons          237.1
    com.apple.driver.AppleUSBTCKeyEventDriver          237.1
    com.apple.driver.AppleUSBTCKeyboard          237.1
    com.apple.driver.AppleIRController          320.15
    com.apple.driver.AppleFileSystemDriver          3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          34
    com.apple.iokit.SCSITaskUserClient          3.5.6
    com.apple.driver.XsanFilter          404
    com.apple.iokit.IOAHCIBlockStorage          2.3.5
    com.apple.driver.AppleUSBHub          635.4.0
    com.apple.driver.AirPortBrcm43224          600.36.17
    com.apple.iokit.AppleYukon2          3.2.3b1
    com.apple.driver.AppleFWOHCI          4.9.9
    com.apple.driver.AppleAHCIPort          2.6.6
    com.apple.driver.AppleIntelPIIXATA          2.5.1
    com.apple.driver.AppleUSBEHCI          621.4.6
    com.apple.driver.AppleUSBUHCI          621.4.0
    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleRTC          1.5
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleACPIButtons          1.8
    com.apple.driver.AppleSMBIOS          1.9
    com.apple.driver.AppleACPIEC          1.8
    com.apple.driver.AppleAPIC          1.7
    com.apple.nke.applicationfirewall          4.0.39
    com.apple.security.quarantine          2.1
    com.apple.driver.AppleIntelCPUPowerManagement          214.0.0
    com.apple.iokit.IOSerialFamily          10.0.6
    com.apple.kext.triggers          1.0
    com.apple.driver.DspFuncLib          2.4.7fc4
    com.apple.iokit.IOAudioFamily          1.9.2fc7
    com.apple.kext.OSvKernDSPLib          1.12
    com.apple.iokit.IOFireWireIP          2.2.5
    com.apple.driver.AppleHDAController          2.4.7fc4
    com.apple.iokit.IOHDAFamily          2.4.7fc4
    com.apple.iokit.IOSurface          86.0.4
    com.apple.iokit.IOBluetoothFamily          4.1.7f4
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.4.1d13
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.1.7f4
    com.apple.driver.AppleSMC          3.1.5d4
    com.apple.nvidia.nv50hal          8.1.6
    com.apple.NVDAResman          8.1.6
    com.apple.driver.AppleGraphicsControl          3.4.5
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IONDRVSupport          2.3.7
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOGraphicsFamily          2.3.7
    com.apple.driver.AppleUSBMultitouch          237.3
    com.apple.iokit.IOUSBHIDDriver          623.4.0
    com.apple.driver.AppleUSBMergeNub          621.4.6
    com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.6
    com.apple.iokit.IOUSBMassStorageClass          3.5.2
    com.apple.driver.AppleUSBComposite          621.4.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.6
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOATAPIProtocolTransport          3.5.0
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.6
    com.apple.iokit.IOUSBUserClient          630.4.4
    com.apple.iokit.IO80211Family          530.5
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.iokit.IONetworkingFamily          3.0
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IOAHCIFamily          2.5.1
    com.apple.iokit.IOATAFamily          2.5.1
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IOUSBFamily          635.4.0
    com.apple.iokit.IOHIDFamily          1.8.1
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          220.3
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.DiskImages          345
    com.apple.iokit.IOStorageFamily          1.8
    com.apple.driver.AppleKeyStore          28.21
    com.apple.driver.AppleACPIPlatform          1.8
    com.apple.iokit.IOPCIFamily          2.8
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.corecrypto          1.0
    I received the macbook from someone else without installation disks. Also, when try to do a re-install of 10.8.3 from the internet in restore mode, it tells me that the account does not match the one the purchase was made from.  I would rather not run 10.8.3 anyway if I could install mavericks.
    Below is the system information for the macbook
    Hardware Overview:
      Model Name:          MacBook Pro
      Model Identifier:          MacBookPro3,1
      Processor Name:          Intel Core 2 Duo
      Processor Speed:          2.4 GHz
      Number of Processors:          1
      Total Number of Cores:          2
      L2 Cache:          4 MB
      Memory:          2 GB
      Bus Speed:          800 MHz
      Boot ROM Version:          MBP31.0070.B07
      SMC Version (system):          1.16f11
      Serial Number (system):          W87422HUYAM
      Hardware UUID:          00000000-0000-1000-8000-001B63A5B553
    I have tried to reset nvram as well as smc with no result.
    I have also done a extended apple hardware test which found no errors.
    The macbook does have a bad battery, so I have tried booting without the battery.  The results did not change.
    I have searched the internet for the kernel panic error and can not find a consistent issue for macbook pros.  Some say it is a hardware problem.  Others say it is an install problem.  What does not make sense to me is if it is hardware problem, why was I able to restore it back once and get it to boot consistently.  It seems to be directly the result of updating the software.
    I also read that 10.8.5 consistently had boot problems upon install, so I tried re-installing the combo update for 10.8.5
    I feel like I have exhausted almost all the resources except taking it to the genius bar.
    Please let me know if you can help.
    Thanks,

    bereanmh,
    since your MacBook Pro didn’t originally have Mountain Lion installed at the factory, the former owner erred in leaving it on its internal disk when transferring it to you; Mountain Lion is non-transferable when sourced from the Mac App Store. The former owner should rather have provided you with its original pair of grey installation discs, which hold its original version of Mac OS X, its iLife apps, and its model-specific Apple Hardware Test. If you didn’t receive these discs, you can contact Apple directly to purchase a replacement pair. (They’re not available in Apple stores.)
    That being stated, regarding the panic report above, the prime suspect is that NullCPUPowerManagement kernel extension — try uninstalling it to see if that makes a difference.

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