Grey screen on boot problem

Hi There,
I have a clean Vista install on a late 2008 Macbook aluminum. Some issues but love the combination. However, when booting the computer starts with a grey screen that lasts a long time before booting Vista. Feels like the software is still looking for a OSX partition. Anyone know of a registry entry/ fix for this?
Cheers,
BaliApple

Hi.
Bali i'm new to MBP too but as far as i know there isn't any registry entry the registry part belongs to windows it has nothing to do with that grey screen. I think it might be the EFI but i dont't know. I'm still learning . I have the same problem in a way. When i power on the MBP that grey screen apears for more then a minute. After that a black screen with an "_" in the left side of the screen for another ~3m. I have tried PRAM reset and no result. The weird thing is that i haven`t done anything i only reinstalled my OS ( typically windows ). I haven`t touched the EFI partition either. What else can i try. Ow and one more question: If i upgrade the HDD how can this influence the MBP considering that it won't have an EFI partition anymore. Cheers.
by the way here is some info:
BIOS Version: Apple Inc. MBP41.88Z.00C1.B03.0802271651, 2/27/2008
System Model: MacBookPro4,1

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Blue or grey screen on boot

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On attempting to start up recently I got a screen in alternating shades of blue.
Trying to boot to a bootable CD gives me a 'you need to restart' grey screen.
Booting to the diagnostic works and finds no problems.
Booting in firewire target mode allows access to the HD and repaired some errors with diskutility but did not change symptoms. Subsequent checks show no errors.
Booting to an ubuntu livecd worked fine with generic graphics drivers (up to date drivers available but require a reboot).
Booting into safe mode has the blue screens alternating with a black screen with a white rectangle in the top left (about the size of an old terminal cursor).
Zapping PRAM doesnt seem to change anything.
Recent upgrades include +4GB RAM which I have removed and errors remain with the original 1GB RAM (2x512)
I have also replaced the graphics card recently, GT 8800 stopped working and I replaced it with another GT 8800.
The help pages on blue and grey screens seem to be mutually exclusive but both discuss removing peripherals and non Apple hardware.
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HI,
Trying to boot to a bootable CD gives me a 'you need to restart' grey screen.
That is what is referred to as a kernel panic.
Go here for help to Resolve Kernel Panics
Carolyn

What happens between the chime & the grey screen on boot?

Hi,
My Mac Pro has recently started taking up to 30secs to reach the grey screen when booting. The chime happens shortly after (re)starting, and then there's a significant pause, where nothing seems to happen (even the Apple Display stays in stand-by mode), before the HDD starts reading and the grey screen appears. I tried using Verbose mode, but the data it prints to screen doesn't start until after the long pause, so…
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Hi,
My issue has been solved, apparently by a combination of a PRAM reset and re-selecting the startup disk in System Preferences. My machine now moves from chime to Apple logo almost instantaneously
The AppleCare representative was thorough and walked me through various steps that narrowed down the issue, and his hesitant conclusion was that somehow, as hatter suggested, the Mac was taking its time to find the appropriate boot device - possibly as a result of a change I had made in my BootCamp partition (Windows 7) or as a result of a previous PRAM reset (as hatter suggested).
Case closed! Yay!
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Message was edited by: SiRGadaBout

IMBP 13" (2009 revision) display a prohibition sign w/grey screen on boot

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I'm new to this OS, which is a iMBP 13" (2009 revision). I'm experiencing abnormal boot sequence. The bootup screen display a prohibition sign with a grey screen upon boot after installing Security Update 2010-001 for Snow Leopard. There is no error message I can write down nor excessive fan noise coming out from the laptop.
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Message was edited by: TonySNZ

Hello Tony from New Zealand (great place, I visited once):
Welcome to Apple discussions.
Take a look at this article to see if it helps you fix the problem:
http://support.apple.com/kb/TS2570
If it does not, I think I would reinstall OS X 10.6 (upgrade from your software install DVD) over your existing system. Then I would run software update to bring everything to current levels.
A good backup before any software change is always a very good idea (I use both Time Machine and SuperDuper).
Barry

Booting in single user mode to trouble shoot grey screen the boot stops at "CODE SIGNING .... clearing CS_VALID" will not command c past - stuck

booting in single user mode to trouble shoot grey screen the boot stops at "CODE SIGNING .......... clearing CS_VALID" - cannot command C past - just stuck

Hi opjml0,
Welcome to the Apple Support Communities!
If your Macbook is starting up to the gray screen, I suggest the steps in the following article.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
I hope this helps,
-Joe

Updated to Tiger, stuck on grey screen BUT boots fine with option key

I've searched the forum and found many other similar threads. But no real answers for my particular problem. Here it is. iMac 800 MHz G4, 512 RAM was on 10.3.9. Updated to 10.4.5. Then booted from a firewire hard drive and fixed permissions and ran Disk Warrior. Now when I try to boot up normally it just stays on a blank grey screen. No Apple logo. No spinning wheel, nothing. Weird thing is it boots up fine if I hold down the option key at start up and select the hard drive. So, I've done that and repaired permissions and run disk utility. Says everything is OK. Even zapped the PRAM. But still, only way to get it to boot is by holding option key and choosing hard drive. Any ideas?

Hi Steve, What other start up options are you seeing when you boot with the 'Option' key? Have you tried a 'Safe Boot"? Hold down the 'Shift' key while restarting until (hopefully) you see the spinning gear wheel. Wait while it restarts, this takes a lot longer. If you can boot into 'Safe mode' then in System Preferences>System>Start up disk, make sure that your hard drive is selected.
If you can't boot into 'Safe mode' (you should be able to) then when you have booted with the 'Option' key, follow the 'System Preferences' advice above. Select your hard drive & 'Restart'.
Also have a look at
Dr Smoke's Troubleshooting Startup and Login Items.
For future reference, bookmark his X-Lab home page. There is a wealth of helpful information. Obviously he'd like you buy his 'Troubleshooting' e-Book, but there's loads there for free.
As Dr Smoke would say: "Good luck! "
Have fun too!
An  a day...
Adrian
ibook G4: 768mb, iMac 17" G4:768mb (10.3.9) Mac OS X (10.4.4) Belkin Wireless F5D7632

Emac 1.25ghz 1gb (i think 10.4.11) grey screen/no boot.

Hi all,
eMac wont boot, just sits on the grey screen (with no spinning loading thing, no folder with question mark or anything). I cant tell if it is chiming (the speakers have never worked on it). It doesn't sound like the HD is spinning up (If i remember right emacs had fans so that is all I can here) - but am i right in thinking if the HD was broken it would go to the grey screen with folder with question mark?
any help greatly received,
Olly.

hmmmm.
Turns out it wasn't as simple as that....
After turning it back on with the stick of after market ram out, it booted up lovely into osx, ran nice. a couple of hours later the owner plugged her ipod into it - itunes said that the ipod was not registered to that mac (even tho the ipod has only ever been used with this machine). So I got called back to look at this. I clicked the 'sync' button in her itune's library and the screen went all blue (everything disappeared including the cursor).
I left it like it for a couple of mins - no change, held in the power button, turned it off then back on again, back to the gray screen from before, No boot. unplugged the ipod and her drawing pad thinggy.
turned it off, back on again - same thing. turned it off, unplugged the power lead for 5 mins, plugged back in turned on and booted fine into osx, perfectly. plugged the ipod in, it opened itunes and synced fine with no problems.
What I don't understand is why there is no pattern to it. could it be the ipod? - but before when it just had the grey screen nothing was connected to it and it still wouldn't boot, am I right in thinking that the ram I took out is fine and it was the unplugging of the mac from the power that made it boot?
Could it be overheating? - although it is completely standard mac and there is no blockage at the back of it so it can breath properly (am i right in thinking they have a thermo cut off so they just turn them selves off before causing themselves damage?)
thanks again,
Olly
Message was edited by: oliver newman

How can I get rid of The Grey screen and boot my macbook?

Today I was on my MacBook Pro (bought July 2011) and it went to a blank blue screen. I powered it off and tried to restart it. It loaded the apple and spinning circle but it went to a grey screen and froze there. I've read and tried a lot of different things already but nothing has worked. I did the hardware test and it found no problems. I tried to safeboot it. I tried everything on here: http://support.apple.com/kb/TS2570 except the last suggestion (I'd rather not have to lose all my files unless absolutely nesseccary). I also tried the "hold Command + R keys" to try and get to utilities. Anything else out there that I could try? Not sure what the exact operating system is either.

I wouldn't assume that's the hard drive. The fact that the screen turned blue all of a sudden isn't necessarily an indication of a hard drive failure. Check out this post I made yesterday:
https://discussions.apple.com/message/21756819#21756819
My personal opinion would be to try and boot from an external hard drive with the appropriate OS installed. With a 2011 model, I would assume that should be Snow Leopard or later. AHT doesn't catch everything, and I don't know if it even does drive scans for bad blocks. I do know for a fact that it pretty much limits itself to digital interfaces and can't go beyond analog driver stages. For example, if the driver stages of a FireWire port or ethernet port are blown, AHT will report them as being OK.
If you got hit by a transient, which could indicate an internal supply problem or a line problem if you were connected to the internet via a wired connection or you were running off the charger, there's no telling what it might have caused the drive to do (if it's the drive) and it could easily cause the screen to suddenly go to blue, but what other damage was done?
My point is that you need to confirm what the source of the problems are. If there's a logic board problem, your drive and data may be OK. If the drive is bad, some of it may still be recoverable. The problem may very well be drive related, but I wouldn't go out and start throwing money at new parts without first confirming what the cause of the problems is.
Hope this helped, and good luck.

Grey screen at boot up and then hang up

I've tried to use my 2008 iMac running MAC OS 10.7.5 this morning and it won't boot. I get to the grey screen where it would normally display the apple logo and then the login prompt, but hangs up before that point.
I've sucessfully booted it into safe mode and all the hardware checks I've performed suggest that everything is ok.
Via safe mode I've found the following boot information - located in the "/var/log/system.log" file...
Feb 25 10:08:28 localhost bootlog[0]: BOOT_TIME 1361786908 0
Feb 25 10:08:30 localhost com.apple.launchd[1]: *** launchd[1] has started up. ***
Feb 25 10:08:39 localhost com.apple.launchd[1] (com.apple.powerd): Unknown value for key POSIXSpawnType: Interactive
Feb 25 10:08:39 localhost com.apple.launchd[1] (com.apple.sandboxd): Unknown value for key POSIXSpawnType: Interactive
Feb 25 10:08:51 localhost UserEventAgent[11]: starting CaptiveNetworkSupport as SystemEventAgent built Jun 13 2011 17:29:21
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CreateInterfaceWatchList:2788 WiFi Devices Found.
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Feb 25 10:08:52: --- last message repeated 1 time ---
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Feb 25 10:08:52: --- last message repeated 1 time ---
Feb 25 10:08:52 localhost UserEventAgent[11]: CertsKeychainMonitor: configuring
Feb 25 10:08:53 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Feb 25 10:08:53: --- last message repeated 1 time ---
Feb 25 10:08:53 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Feb 25 10:08:53 localhost airportd[28]: _processDLILEvent: en1 attached (down)
Feb 25 10:08:53 localhost mDNSResponder[12]: mDNSResponder mDNSResponder-320.16 (Jul 19 2012 21:07:07) starting OSXVers 11
Feb 25 10:08:54 ze_monkey-imac configd[16]: setting hostname to "ze_monkey-imac.local"
Feb 25 10:08:54 ze_monkey-imac configd[16]: network configuration changed.
Feb 25 10:08:55 ze_monkey-imac systemkeychain[40]: done file: /var/run/systemkeychaincheck.done
Feb 25 10:08:55 ze_monkey-imac configd[16]: network configuration changed.
Feb 25 10:08:55: --- last message repeated 1 time ---
Feb 25 10:08:55 ze_monkey-imac mDNSResponder[12]: D2D_IPC: Loaded
Feb 25 10:08:55 ze_monkey-imac mDNSResponder[12]: D2DInitialize succeeded
Feb 25 10:08:57 ze_monkey-imac UserEventAgent[11]: ServermgrdRegistration cannot load config data
Feb 25 10:08:58 ze_monkey-imac configd[16]: network configuration changed.
Feb 25 10:08:58 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe
Feb 25 10:08:58 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CNSPreferences:60 Creating new preferences
Feb 25 10:08:58 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptiveStartDetect:2343 Bypassing probe on ze_monkey-wireless because it is protected and not on the exception list
Feb 25 10:08:58 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Unknown
Feb 25 10:08:58 ze_monkey-imac configd[16]: network configuration changed.
Feb 25 10:09:01 ze_monkey-imac com.apple.pfctl[66]: No ALTQ support in kernel
Feb 25 10:09:01 ze_monkey-imac com.apple.pfctl[66]: ALTQ related functions disabled
Feb 25 10:09:02 ze_monkey-imac com.apple.ucupdate.plist[59]: ucupdate: Checked 1 update, no match found.
Feb 25 10:09:03 ze_monkey-imac VMware Fusion 683826[90]: Starting VMware Fusion:
Feb 25 10:09:03 ze_monkey-imac com.vmware.launchd.vmware[87]: Feb 25 10:09:03 ze_monkey-imac.local VMware Fusion 683826[90] <Notice>: Starting VMware Fusion:
Feb 25 10:08:56 ze_monkey-imac com.apple.usbmuxd[58]: usbmuxd-296.3 on Jul 25 2012 at 00:28:37, running 64 bit
Feb 25 10:08:57 ze_monkey-imac ntpd[54]: proto: precision = 1.000 usec
Feb 25 10:08:58 ze_monkey-imac loginwindow[72]: Login Window Application Started
Feb 25 10:08:58 ze_monkey-imac mds[70]: (Normal) FMW: FMW 0 0
Feb 25 10:09:02 ze_monkey-imac XProtectUpdater[56]: Ignoring new signature plist: Not an increase in version
Feb 25 10:09:02 ze_monkey-imac com.apple.launchd[1] (com.apple.xprotectupdater[56]): Exited with code: 252
Feb 25 10:09:12 ze_monkey-imac loginwindow[72]: **DMPROXY** Found `/System/Library/CoreServices/DMProxy'.
Feb 25 10:09:14 ze_monkey-imac airportd[28]: _doAutoJoin: Already associated to “ze_monkey-wireless”. Bailing on auto-join.
Feb 25 10:09:16 ze_monkey-imac loginwindow[72]:
        O3REQUIRE FAILED: ret == 0
           - file: /SourceCache/BezelServices/BezelServices-232.3/Utilities/Utilities.c
           - line: 91
Feb 25 10:09:16 ze_monkey-imac loginwindow[72]: Failed to lookup Bezel UI Server port: Bootstrap Unknown Service.
Feb 25 10:09:16 ze_monkey-imac loginwindow[72]: Login Window Started Security Agent
Feb 25 10:09:16 ze_monkey-imac com.apple.launchctl.LoginWindow[110]: com.apple.findmymacmessenger: Already loaded
Feb 25 10:09:17 ze_monkey-imac SecurityAgent[115]: Echo enabled
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I'm not sure what the "O3REQUIRE FAILED" relates to and also the control characters at the end!?! Does anyone know?
Also does anyone know how to fix this?
Any help you can provide would be useful.
Thanks

Ok, I've uninstalled both VMware and MacFUSE using the documented procedures taken from official websites.
I've rebooted and I still have the same problem... hangs before the login screen appears. I can still login via safe mode however.
Do you want me to post the output from the three steps again?
F.Y.I. Latest contents of "/var/log/System.log" from hang up ->
Mar 1 11:06:23 localhost bootlog[0]: BOOT_TIME 1362135983 0
Mar 1 11:06:25 localhost com.apple.launchd[1]: *** launchd[1] has started up. ***
Mar 1 11:06:37 localhost com.apple.launchd[1] (com.apple.powerd): Unknown value for key POSIXSpawnType: Interactive
Mar 1 11:06:37 localhost com.apple.launchd[1] (com.apple.sandboxd): Unknown value for key POSIXSpawnType: Interactive
Mar 1 11:06:44 localhost UserEventAgent[11]: starting CaptiveNetworkSupport as SystemEventAgent built Jun 13 2011 17:29:21
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CreateInterfaceWatchList:2788 WiFi Devices Found.
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Mar 1 11:06:44: --- last message repeated 1 time ---
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Mar 1 11:06:45: --- last message repeated 1 time ---
Mar 1 11:06:45 localhost UserEventAgent[11]: CertsKeychainMonitor: configuring
Mar 1 11:06:47 localhost airportd[28]: _processDLILEvent: en1 attached (down)
Mar 1 11:06:47 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Mar 1 11:06:47 localhost mDNSResponder[12]: mDNSResponder mDNSResponder-320.16 (Jul 19 2012 21:07:07) starting OSXVers 11
Mar 1 11:06:48 ze_monkey-imac configd[16]: setting hostname to "ze_monkey-imac.local"
Mar 1 11:06:48 ze_monkey-imac configd[16]: network configuration changed.
Mar 1 11:06:48 ze_monkey-imac systemkeychain[40]: done file: /var/run/systemkeychaincheck.done
Mar 1 11:06:49 ze_monkey-imac configd[16]: network configuration changed.
Mar 1 11:06:49: --- last message repeated 1 time ---
Mar 1 11:06:49 ze_monkey-imac mDNSResponder[12]: D2D_IPC: Loaded
Mar 1 11:06:49 ze_monkey-imac mDNSResponder[12]: D2DInitialize succeeded
Mar 1 11:06:50 ze_monkey-imac UserEventAgent[11]: ServermgrdRegistration cannot load config data
Mar 1 11:06:51 ze_monkey-imac configd[16]: network configuration changed.
Mar 1 11:06:51 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe
Mar 1 11:06:51 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CNSPreferences:60 Creating new preferences
Mar 1 11:06:51 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptiveStartDetect:2343 Bypassing probe on ze_monkey-wireless because it is protected and not on the exception list
Mar 1 11:06:51 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Unknown
Mar 1 11:06:51 ze_monkey-imac configd[16]: network configuration changed.
Mar 1 11:06:54 ze_monkey-imac com.apple.ucupdate.plist[59]: ucupdate: Checked 1 update, no match found.
Mar 1 11:06:54 ze_monkey-imac com.apple.pfctl[66]: No ALTQ support in kernel
Mar 1 11:06:54 ze_monkey-imac com.apple.pfctl[66]: ALTQ related functions disabled
Mar 1 11:06:55 ze_monkey-imac launchdadd[21]: FAILURE: Could not send MIG reply: 0x10000003
Mar 1 11:06:56 ze_monkey-imac com.apple.usbmuxd[58]: usbmuxd-296.4 on Dec 21 2012 at 16:11:14, running 64 bit
Please also find attached the contects of the "/var/log/kernel.log" file in parallel. Not sure whether this is helpful?
Mar 1 11:06:41 localhost kernel[0]: Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
Mar 1 11:06:41 localhost kernel[0]: vm_page_bootstrap: 1007088 free pages and 33296 wired pages
Mar 1 11:06:41 localhost kernel[0]: kext submap [0xffffff7f80736000 - 0xffffff8000000000], kernel text [0xffffff8000200000 - 0xffffff8000736000]
Mar 1 11:06:41 localhost kernel[0]: zone leak detection enabled
Mar 1 11:06:41 localhost kernel[0]: standard timeslicing quantum is 10000 us
Mar 1 11:06:41 localhost kernel[0]: mig_table_max_displ = 73
Mar 1 11:06:41 localhost kernel[0]: AppleACPICPU: ProcessorId=0 LocalApicId=0 Enabled
Mar 1 11:06:41 localhost kernel[0]: AppleACPICPU: ProcessorId=1 LocalApicId=1 Enabled
Mar 1 11:06:41 localhost kernel[0]: calling mpo_policy_init for TMSafetyNet
Mar 1 11:06:41 localhost kernel[0]: Security policy loaded: Safety net for Time Machine (TMSafetyNet)
Mar 1 11:06:41 localhost kernel[0]: calling mpo_policy_init for Sandbox
Mar 1 11:06:41 localhost kernel[0]: Security policy loaded: Seatbelt sandbox policy (Sandbox)
Mar 1 11:06:41 localhost kernel[0]: calling mpo_policy_init for Quarantine
Mar 1 11:06:41 localhost kernel[0]: Security policy loaded: Quarantine policy (Quarantine)
Mar 1 11:06:41 localhost kernel[0]: Copyright (c) 1982, 1986, 1989, 1991, 1993
Mar 1 11:06:41 localhost kernel[0]: The Regents of the University of California. All rights reserved.
Mar 1 11:06:41 localhost kernel[0]: MAC Framework successfully initialized
Mar 1 11:06:41 localhost kernel[0]: using 16384 buffer headers and 10240 cluster IO buffer headers
Mar 1 11:06:41 localhost kernel[0]: IOAPIC: Version 0x11 Vectors 64:87
Mar 1 11:06:41 localhost kernel[0]: ACPI: System State [S0 S3 S4 S5]
Mar 1 11:06:41 localhost kernel[0]: PFM64 (36 cpu) 0xf10000000, 0xf0000000
Mar 1 11:06:41 localhost kernel[0]: [ PCI configuration begin ]
Mar 1 11:06:41 localhost kernel[0]: console relocated to 0xf10030000
Mar 1 11:06:41 localhost kernel[0]: PCI configuration changed (bridge=2 device=2 cardbus=0)
Mar 1 11:06:41 localhost kernel[0]: [ PCI configuration end, bridges 5 devices 18 ]
Mar 1 11:06:41 localhost kernel[0]: AppleIntelCPUPowerManagement: (built 16:32:09 Aug 23 2012) initialization complete
Mar 1 11:06:41 localhost kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 00254bfffea158e2; max speed s800.
Mar 1 11:06:41 localhost kernel[0]: USBMSC Identifier (non-unique): 575845393038544E34363432 0x1058 0x704 0x105
Mar 1 11:06:41 localhost kernel[0]: mbinit: done [64 MB total pool size, (42/21) split]
Mar 1 11:06:41 localhost kernel[0]: Pthread support ABORTS when sync kernel primitives misused
Mar 1 11:06:41 localhost kernel[0]: com.apple.AppleFSCompressionTypeZlib kmod start
Mar 1 11:06:41 localhost kernel[0]: com.apple.AppleFSCompressionTypeDataless kmod start
Mar 1 11:06:41 localhost kernel[0]: com.apple.AppleFSCompressionTypeZlib load succeeded
Mar 1 11:06:41 localhost kernel[0]: com.apple.AppleFSCompressionTypeDataless load succeeded
Mar 1 11:06:41 localhost kernel[0]: AppleIntelCPUPowerManagementClient: ready
Mar 1 11:06:41 localhost kernel[0]: BTCOEXIST off
Mar 1 11:06:41 localhost kernel[0]: wl0: Broadcom BCM432b 802.11 Wireless Controller
Mar 1 11:06:41 localhost kernel[0]: 5.106.198.19
Mar 1 11:06:41 localhost kernel[0]: [IOBluetoothHCIController::setConfigState] calling registerService
Mar 1 11:06:41 localhost kernel[0]: rooting via boot-uuid from /chosen: 2EEFC1E1-687B-3DE5-A5B3-5C489A13EB53
Mar 1 11:06:41 localhost kernel[0]: Waiting on <dict ID="0"><key>IOProviderClass</key><string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
Mar 1 11:06:41 localhost kernel[0]: Got boot device = IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/SATA@B/AppleMCP79AHCI/PR T0@0/IOAHCIDevice@0/AppleAHCIDiskDriver/IOAHCIBlockStorageDevice/IOBlockStorageD river/Hitachi HDT721064SLA360 Media/IOGUIDPartitionScheme/Customer@2
Mar 1 11:06:41 localhost kernel[0]: BSD root: disk0s2, major 14, minor 2
Mar 1 11:06:41 localhost kernel[0]: Kernel is LP64
Mar 1 11:06:44 localhost kernel[0]: NVEthernet: Ethernet address 00:25:4b:a1:58:e2
Mar 1 11:06:44 localhost kernel[0]: AirPort_Brcm4331: Ethernet address 00:25:4b:8c:0a:c3
Mar 1 11:06:44 localhost kernel[0]: IO80211Controller::dataLinkLayerAttachComplete(): adding AppleEFINVRAM notification
Mar 1 11:06:44 localhost kernel[0]: IO80211Interface::efiNVRAMPublished():
Mar 1 11:06:47 localhost kernel[0]: in func createVirtualInterface ifRole = 1
Mar 1 11:06:47 localhost kernel[0]: Created virtif 0xffffff800c2aa600 p2p0
Mar 1 11:06:48 localhost kernel[0]: NVDANV50HAL loaded and registered.
Mar 1 11:06:48 localhost kernel[0]: Previous Shutdown Cause: -128
Mar 1 11:06:48 localhost kernel[0]: SMC::smcInitHelper ERROR: MMIO regMap == NULL - fall back to old SMC mode
Mar 1 11:06:48 localhost kernel[0]: DSMOS has arrived
Mar 1 11:06:48 localhost kernel[0]: 00000000 00000020 NVEthernet::setLinkStatus - not Active
Mar 1 11:06:48 ze_monkey-imac kernel[0]: [AGPM Controller] build GPUDict by Vendor10deDevice0655
Mar 1 11:06:48 ze_monkey-imac kernel[0]: SMC::smcReadKeyAction ERROR: smcReadData8 failed for key BEMB (kSMCKeyNotFound)
Mar 1 11:06:48 ze_monkey-imac kernel[0]: AirPort: Link Down on en1. Reason 1 (Unspecified).
Mar 1 11:06:49 ze_monkey-imac kernel[0]: en1: 802.11d country code set to 'US'.
Mar 1 11:06:49 ze_monkey-imac kernel[0]: en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165
Mar 1 11:06:49 ze_monkey-imac kernel[0]: [ffffff800c29ec00][BNBTrackpadDevice::init][70.12] init is complete
Mar 1 11:06:49 ze_monkey-imac kernel[0]: [ffffff800c29ec00][BNBTrackpadDevice::handleStart][70.12] returning 1
Mar 1 11:06:49 ze_monkey-imac kernel[0]: [ffffff800c277600][AppleMultitouchHIDEventDriver::start] entered
Mar 1 11:06:49 ze_monkey-imac kernel[0]: MacAuthEvent en1   Auth result for: 00:e1:25:87:de:37 MAC AUTH succeeded
Mar 1 11:06:49 ze_monkey-imac kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0
Mar 1 11:06:49 ze_monkey-imac kernel[0]: AirPort: Link Up on en1
Mar 1 11:06:49 ze_monkey-imac kernel[0]: en1: BSSID changed to 00:e1:25:87:de:37
Mar 1 11:06:50 ze_monkey-imac kernel[0]: AirPort: RSN handshake complete on en1
Mar 1 11:06:50 ze_monkey-imac kernel[0]: [ffffff800c1e1c00][AppleMultitouchDevice::start] entered
Mar 1 11:06:57 ze_monkey-imac kernel[0]: macx_swapon SUCCESS
Do you know anywhere else I can look for errors to help understand the problem further?
Any suggestions on what to do next?

TS2570 My mac pro book 13 just shows grey screen and booting up but nothing else

My mac book pro 13 just as grey screen and trying to boot up any ideas thanks

I am having the same problem on my Mac Book Pro 13" Mic 2010. The sceen goes gray on reboot with the spinning wheel.

My imac has a grey screen wont boot from hhd pls help

hello,
I have an imac from late 2008 with snow leopard. Late saturday evening 24 Mar I had powered
down my imac then later turned it on. Now only a grey screen appears, nothing more. If I leave
the imac on a folder with a question mark appears and blinks.
I have tried the following to fix the problem and ALL HAVE FAILED:
they are:
1. resetting the pram. it doesnt work.
2. booting from the installation cd. The imac doesn't even READ the cd, the screen remains grey and doesn't
read the cd at all.
3. booting in the safe mode. nothing happens, the screen remains grey.
4. booting in apple hardware test mode: nothing happens screen remains grey.
5. boot with option key pressed, so as to choose mac HD or my windows partition. nothing
happens, the screen remains grey.
All of these have failed to fix the problem.
When I power on my imac I heard the chord, a slight spin of the HHD I'm sure that's what it is,
and then nothing.grey screen.
I have tried unpluggling the power cord for 15 seconds, reconnecting it, waitiing five seconds
and then powering up the imac. it doesn't do any good.
any help anyone can provide will be appreciated.
do you think it is a hard drive error or failure?
why doesn't it read or boot from the instllation CD?? and yes I am using the correct disk.
thanks folks for yr help and opinions.
Alfonso

Ok. so you stated the screen remains gray. Is it just plain gray? Does it have a folder with a question mark on it? Do you see the little pin wheel thingy?
You also stated you can't boot from the install disc. Turn the machine on and put the disc in the drive. Shut the machine down by holding down the start button for five seconds or so and wait a further 20 seconds. Restart the machine and hold down the 'C' key before the chime and keep holding it down until the machine boots form the disc. It can take up to three minutes to boot from the disc. Once it has booted from the disc select the language and go to the Utilities menu at the top and run the disc repair utility.
The hardware test is built in and should work regardless. Turn the machine on and hold down the 'D' key before the chime and keep holding it down until the hardware test starts.
I fear you have not given enough time or used the correct procedure to do the tests you state you have done.

Imac G5 1.8 Grey Screen, Start Up Problem, Any Help Appreciated.

Hello,
I've been having start up issues for about four days. Never had any problems before. Here's what happens:
During start up the start up the usual tone is heard. A grey screen appears and the start up process stops. I am forced to restart and try again. After several attempts the computer start up makes it to the grey apple logo and then the fans max out. I then restart the computer again and it finally starts up. The computer works perfectly once it is finally on all of the way. I have tried the follwing techniques to fix the problem:
Tech Tool Pro: Optimize and Maintenance, program worked fine, fully optimized, but did not fix the start up issue.
Utility Disk from CD: verify disk and permissions, permmisions were corrected, disk repair does not work-error message.
Started in Safe Mode: Checked for extra Login items, none found.
I'm not sure what else I can do. Any help would be greatly appreciated.
Thank you,
Greg Sayles
Imac G5 1.8 Mac OS X (10.3.9)

You say 'disk repair doesn't work - error message'. It's not clear, but have you tried booting up from your Panther install disk and running Disk Utility from there? Perhaps running DiskWarrior might help (if you have it of course). Failing that you may be looking at an Archive & Install to replace your existing OS with a fresh new one while keeping your apps & files intact.

My old mac powerbook g4 wont boot up, it wont show apple logo and spinner aswell just stuck on grey screen while booting please help me

i have a old powerbook g4 which i usally use to store some photos and to listen music. the battery of my powerbook is completly dead so i used to use my powerbook using charger adapter so whenever my power cuts down my laptop will be shutdown.
one day i had just bootedup my powerbook and some date notificateion poped up so i press enter and suddenly my power went off and laptop shuted down. and next time when i tried to boot its stuck at grey screen , i even cant reach the apple logo and spinner. please helppp me :!!!!!!!!!!!!!!!

Resetting PRAM and NVRAM is not working
and i cann't boot it on safemode holding shift button and while holding option or c button at startup i can only see three things 1 is refresh button, 2 macintosh HD with X under it, 3 arrow forward button please help me

I have a grey screen when booting up my MacBook with stop sign, don't know what to do?

My MacBook Pro will not start up, it has a grey screen and a stop sign. I have looked at other advice and I don't have a snow leopard disk to put in. What shall I do? I have a lot of work on it which I think I have backed it up with iCloud but would like to get my mac functioning again.

You can buy Snow Leopard from Apple for $20.
http://store.apple.com/us/product/MC573/mac-os-x-106-snow-leopard
It's a long shot, but worth testing if the computer will boot in Target Disk Mode. Restart the computer and immediately hold down the T key. If the computer boots with a firewire icon on the screen it can be connected to another Mac in TDM.
http://support.apple.com/kb/ht1661
Post back if the fw icon shows up on the screen and you need more instructions. You will need another Mac to be the host for TDM.

LifeDrive startup screen only (booting problem)

Hi
I am Bashir Ahmad, having Plamone LifeDrive. Today when the LifeDrive is fully charged And wanted to turn on. After pressing the power button it shows only the startup screen. It seems it is not booting (windows terminology). And hangs at the startup shows "PLAMONE".
What I did:
(1) The reset button is pressed still the same problem.
(2) Connected with PC running Windows XP professional, computer first display a balloon near the clock stating new device is found but after a while it says "USB Device not recognized".
(3) When connected to AC adopter automatically shows only the startup screen And not moving on to load operating system.
Please tell me how can this booting problem be solved?
Thank you.
Bashir Ahmad
Post relates to: LifeDrive
This question was solved.
View Solution.

Hi Dear Alan G.
Thank you for the quick reply and sorry for the my late response.
(a)When the LifeDrive is restarted I can hear the hard disk spanning (like the sound of analogy wall clock) for 1 minutes then it become silent.
(b) When I shake the device gently the motion of hard disk can be hear.
(c)Further if it is plugged into AC power the light (LED) at the top shows orange (amber) color and never changes the color.
Today when I tried "hard reset" for this
(1) The power button is pressed and hold to right direction then the reset button is pressed gently.
(2) From the menu "Secure erase" is selected after that anther screen can just with work "secure erase".
(3) There was no other option therefore I wait for one hour but there was no progres
(4) Also nothing when the LifeDrive is restarted it stuck at the startup with "plamone" showing on the screen.
Please tell me what should I do?
With best regards;
Bashir Ahmad.
Post relates to: LifeDrive
Post relates to: LifeDrive

Grey screen on boot problem

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