Macbook no longer boots

Hi,
This past Tuesday night I downloaded the new software updates for my macbook. There was an error during the installation and the updates did not complete. A screen popped up on my macbook which told me that I needed to re-start my macbook. I clicked ok and re-started. After the re-start my macbook will not boot, and remains stuck on the screen which reads "Starting Mac OS X..." I have tried resetting the PRAM and SMC, as well as using the Disk Utility to repair the disk. So far nothing has worked and the macbook remains stuck in boot-limbo...
Has anyone experienced anything similar after installing apple updates? Any help would be appreciated. Bought my macbook in June 2006 and my applecare just expired this past june.
Thanks!

Hi,
i'm following the disscussion since i've notice that my problem is very similar to UptownTopRanking. My macbook freezed when i was uptading (4 uptade at the time including Mac OS X). I shut it down by pressing the power button for few seconds.
And after the computer no longer boots and freeze on the grey screen.
I've tried the solutions proposed on the apple support page but it still not working.
When i saw this topic, i tried to do the same, archive and install the Mac OS X program with my original CD.
The problem is that everytime I'm trying to install it, the program stop after few minutes an ask me to reboot because and error occured. The Error message says : (i'm translating from french)
The installation program didn't succeed to install some files in the "/Volumes/MacintoshHD". Contact the editor of the program to have some help.
And then they ask me to restart the computer, and when i'm trying to intall again, the installation process is still crashing..
Is there anything i can do?

Similar Messages

White Macbook no longer booting

Hi there,
My first generation white Macbook (June 2006) isn't booting up since failing to wake from sleep...
I normally shut the lid to sleep it, and this time instead of waking up and doing the normal disc drive noise, it appeared to get stuck... with the disc drive noise repeating and clicking. After a couple of goes it stopped but still didn't wake up so I held power button to switch off.
Now when I press power button, the usual drive noise happens (without sticking), the screen flashes but then returns to black and doesn't do anything else (no chimes, no picture). The light at the front stays on during this time though, so it's almost like it's stuck in sleep mode??
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I'm hoping someone here may have some other ideas to try, otherwise a (hopefully not to costly) trip to the Apple store will be in order
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Hi everyone...
Thanks for the tips - I was worrying about logic board, but it's had that replaced previously so I was hoping it wasn't that!
Anyway good news is that it seems to be working again - I got in and I think my girlfriend had left it in the front-light on, trying-to-boot-up state so it was warm... but on opening the chimes sounded and it tried to boot.
It then seemed to boot to the password prompt, but before I could finish typing the password it cut out and rebooted.
I then held the power button down to turn off fully, turned it back on, and here I am typing on it!!
It's almost like it got stuck in sleep mode - could it be something up with the Tiger install, or a (very) intermittent hardware fault?
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MacBook Pro no longer boots Yosemite

I have had Yosemite installed for about a week and everything seemed to be working fine. For some reason my laptop (MacBook Pro Early 2011) no longer boots. I have managed to install a new copy of OSX, but that didn't fix it. I also ran Disk Utility, but that didn't fix my issue either.
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Hello Mr.1977,
Thank you for using Apple Support Communities.
You didn't specify exactly what happens when it fails to boot, but it is just showing a gray screen, this article should be of use:
Mac OS X: Gray screen appears during startup
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Jeff D.

Unusual long boot cycle on my MacBook Pro 13' Mac OS 10.6.8

Unusual long boot cycle on my MacBook Pro 13' Mac OS 10.6.8
No new hard or software has been installed.
Is there a way to fix this?

Can you enter the following command in Terminal and post the result here?
Command is "ls -al" (it's the "L" letter in "ls" and "-al"), then press Enter.
Additionally, you can enter the following commands in Terminal (press Enter after each one):
sudo chown root:admin /
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sudo kextcache -system-caches
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MacBook pro Extremely long booting time After 10.10.1 + strange icons when booting

Hi all,
since the Yosemite update and the sequential patch, I've been experiencing lots and lots of issues with this releade
I posses a
MacBook Pro (13-inch, Mid 2012)
2,5 GHz Intel Core i5
After a week after the Yosemite update my Mac just froze, and for a couple of days I was unable to access it. after 4 attempts of Clean install i was finally able to restore it. but the issue with long booting time and free after sleep/wake action are the same .
I'm experiencing strange icons during boot as follows:
Only after a second reboot and clearing ram with Cmd+Alt+P+R i'm able to get rid of this , and the reboot shows this
That after 5 mins changes into this
This routine keeps happening, every single time i have to restart my mac.
Any suggestions?
tnks

Well , i guess i a HDD issue, when i was experiencing the initial issues with yosemite , I've installed the system an external Hdd and everything was working fine.
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Can no longer boot into Mavericks 10.9.5

My problem is that I can no longer boot into Mavericks 10.9.5 on my mid-2012 Macbook Pro. The problem arose suddenly without any known major changes to my software or hardware. The booting process freezes with the apple visible and the circle below it spinning endlessly. Every several seconds, the display very briefly gets brighter, then the circle starts spinning again and the process repeats itself. It never gets to the user login screen.
Other than keeping various apps up to date, I don't recall any recent major operating system or other major software updates, nor have I made any recent hardware changes. I've searched a multitude of threads and and tried any number of fixes without success. Here's what I've tried so far (and probably a few more that I can't remember): (1) Repaired the startup disk with both Recovery HD -> Disk Utility and single-user mode -> /sbin/fsck -fy; (2) Repaired the startup disk permissions with Recovery HD -> Disk Utility; (3) Reloaded the Mavericks 10.9.5 operating system twice; (4) deleted /Library/Preferences/com.apple.loginwindow.plist; (5) reset PRAM and NVRAM; (6) booted with "D" pressed and ran the Apple hardware test, which ran for about 40 minutes and reported no problems; (7) tried booting from a bootable clone of Mavericks 10.9.5 on an external hard drive, which also failed at the same place with the apple showing and the circle below it spinning endlessly. ***Oddly, I am able to boot from a bootable clone of Mountain Lion on an external hard drive. It's Mavericks that won't boot.***
Here is the part of the system log the repeats itself over and over and seems to correlate with the repeated failed attempts to complete the booting process. Any help would be appreciated beyond words:
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Server is starting up
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Session 256 retained (2 references)
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Session 256 released (1 references)
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Session 256 retained (2 references)
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: init_page_flip: page flip mode is on
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Found 54 modes for display 0x00000000 [54, 0]
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Found 1 modes for display 0x00000000 [1, 0]
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Found 51 modes for display 0x00000000 [51, 0]
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Found 1 modes for display 0x00000000 [1, 0]
May 2 12:49:01 --- last message repeated 1 time ---
May 2 12:49:01 SCH-MacBookPro kernel[0]: IOHIDSystem::registerScreenGated: Screen 0 recycled from pid 343
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: mux_initialize: Mode is dynamic
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Found 54 modes for display 0x00000000 [54, 0]
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Found 1 modes for display 0x00000000 [1, 0]
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Found 51 modes for display 0x00000000 [51, 0]
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Found 1 modes for display 0x00000000 [1, 0]
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: WSMachineUsesNewStyleMirroring: true
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: MPServiceForDisplayDevice: Invalid device alias (0)
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x04248378: GL mask 0x10; bounds (0, 0)[2560 x 1440], 51 modes available
Main, Active, on-line, enabled, Vendor 610, Model 9227, S/N 162f0ab5, Unit 4, Rotation 0
UUID 0x3ef17c2fc9ab601507ec022fbd95576c
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x003f003d: GL mask 0x2; bounds (0, 0)[4096 x 2160], 2 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x003f0041: GL mask 0x20; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 5, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x003f003f: GL mask 0x8; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x04280142: GL mask 0x5; bounds (2560, 0)[1680 x 1050], 54 modes available
Active, on-line, enabled, built-in, boot, Vendor 610, Model a005, S/N 0, Unit 2, Rotation 0
UUID 0xde23f9c1cf7b915b2afe83aecee77b54
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: WSSetWindowTransform: Singular matrix
May 2 12:49:01 --- last message repeated 1 time ---
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x04248378: GL mask 0x10; bounds (0, 0)[2560 x 1440], 51 modes available
Main, Active, on-line, enabled, Vendor 610, Model 9227, S/N 162f0ab5, Unit 4, Rotation 0
UUID 0x3ef17c2fc9ab601507ec022fbd95576c
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x003f003d: GL mask 0x2; bounds (3584, 0)[1 x 1], 2 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x003f0041: GL mask 0x20; bounds (3585, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 5, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x003f003f: GL mask 0x8; bounds (3586, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x04280142: GL mask 0x5; bounds (435, -1050)[1680 x 1050], 54 modes available
Active, on-line, enabled, built-in, boot, Vendor 610, Model a005, S/N 0, Unit 2, Rotation 0
UUID 0xde23f9c1cf7b915b2afe83aecee77b54
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: CGXPerformInitialDisplayConfiguration
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]:   Display 0x04248378: Unit 4; Vendor 0x610 Model 0x9227 S/N 372181685 Dimensions 23.50 x 13.23; online enabled, Bounds (0,0)[2560 x 1440], Rotation 0, Resolution 1
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]:   Display 0x003f003d: Unit 1; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (3584,0)[1 x 1], Rotation 0, Resolution 1
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]:   Display 0x003f0041: Unit 5; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (3585,0)[1 x 1], Rotation 0, Resolution 1
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]:   Display 0x003f003f: Unit 3; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (3586,0)[1 x 1], Rotation 0, Resolution 1
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]:   Display 0x04280142: Unit 2; Alias(2, 0x5); Vendor 0x610 Model 0xa005 S/N 0 Dimensions 13.03 x 8.15; online enabled built-in, Bounds (435,-1050)[1680 x 1050], Rotation 0, Resolution 1
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: CGXMuxBoot: Boot normal
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000003, accelerator 0x00004f2f, unit 0, caps QEX|MIPMAP, vram 1024 MB
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000003, texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: GLCompositor: GL renderer id 0x01022727, GL mask 0x0000003c, accelerator 0x00004907, unit 2, caps QEX|MIPMAP, vram 1024 MB
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: GLCompositor: GL renderer id 0x01022727, GL mask 0x0000003c, texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: GLCompositor enabled for tile size [256 x 256]
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: CGXGLInitMipMap: mip map mode is on
May 2 12:49:01 SCH-MacBookPro.local loginwindow[353]: **DMPROXY** Found `/System/Library/CoreServices/DMProxy'.
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x04248378: Unit 4; ColorProfile { 2, "Thunderbolt Display"}; TransferFormula (1.000000, 1.000000, 1.000000)
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Display 0x04280142: Unit 2; ColorProfile { 3, "Color LCD"}; TransferTable (256, 12)
May 2 12:49:01 SCH-MacBookPro.local launchctl[356]: launchctl: Dubious permissions on file (skipping): /Library/LaunchAgents/com.adobe.AAM.Updater-1.0.plist
May 2 12:49:01 SCH-MacBookPro.local launchctl[356]: com.apple.findmymacmessenger: Already loaded
May 2 12:49:01 SCH-MacBookPro.local com.apple.SecurityServer[23]: Session 100021 created
May 2 12:49:01 SCH-MacBookPro.local UserEventAgent[357]: Failed to copy info dictionary for bundle /System/Library/UserEventPlugins/alfUIplugin.plugin
May 2 12:49:01 SCH-MacBookPro.local airportd[71]: _doAutoJoin: Already associated to “schuyler”. Bailing on auto-join.
May 2 12:49:01 SCH-MacBookPro.local loginwindow[353]: Setting the initial value of the magsave brightness level 1
May 2 12:49:01 SCH-MacBookPro.local loginwindow[353]: Login Window Started Security Agent
May 2 12:49:01 SCH-MacBookPro.local ManagedClient[362]: ApplePersistence=YES
May 2 12:49:01 SCH-MacBookPro.local SecurityAgent[363]: Failed to create agent mechanism, failing authentication!
May 2 12:49:01 SCH-MacBookPro.local com.apple.authd[84]: engine[353]: error creating mechanism agent
May 2 12:49:01 SCH-MacBookPro.local com.apple.authd[84]: engine[353]: evaluate returned -60008 returning errAuthorizationInternal
May 2 12:49:01 SCH-MacBookPro.local loginwindow[353]: Login Window - Returned from Security Agent
May 2 12:49:01 SCH-MacBookPro.local loginwindow[353]: ERROR | -[LoginApp performAuthPluginRequest:] | AuthorizationRef doesn't have a username. Exiting.
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: CGXRestartSessionWorkspace: session workspace exited for session 256 (on console)
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Session 256 released (1 references)
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: Session 256 released (0 references)
May 2 12:49:01 SCH-MacBookPro.local WindowServer[354]: loginwindow connection closed; closing server.
May 2 12:49:03 SCH-MacBookPro com.apple.launchd[1] (com.apple.loginwindow): Throttling respawn: Will start in 1 seconds
May 2 12:49:04 SCH-MacBookPro.local loginwindow[364]: Login Window Application Started
May 2 12:49:04 SCH-MacBookPro com.apple.launchd[1] (com.apple.WindowServer): Throttling respawn: Will start in 7 seconds

Hi
You got a prob I think, if you can boot a windows, MSconfig, startup options might restore the boot files.Only other thing is to try and either load a new windows and let it setup a boot file, or perhaps a win98 startup disk, and fdisk, then set active partiton, which will set an MBR. But that would leave a load of work to do, I think I'd opt for an install of XP, and let it repair existing installation, and make a new boot file.
Hope you don't need the info on disks. If you do, I would install another HDD, load XP, then copy original Disk to save place.
Good luck
Jocko

Can no longer boot to MacOSX after bootcamp install

Hello all, I have an issue to where I can no longer boot into the Mac OSX partition after what appears to be a failed Windows bootcamp install. As I was running the bootcamp assistant process, a reboot occurred and I was greeted with the "No bootable device -- insert boot disk and press any key". I have no idea how to get past this and boot back to OSX.
Things I have tried:
Holding down the "option" key does nothing, even using a USB keyboard
Resetting PRAM (CMD + OPT + P + R) does nothing, even with USB keyboard
I have put in a MAC OSX 10.7 Disk and cannot boot to disk using CMD + C on startup
I also pulled the hard drive out and connected it to another PC and wiped the drive completely. I put it back in the macbook and I am still presented with this error. It seems, even though I get the Mac startup tone, that it is stuck in which ever OS it tried to run previously, that being Windows. Not sure why I am still receiving this error even after wiping the drive completely clean.
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Please reset SMC as well.
You can get the serial number from the back cover and use https://selfsolve.apple.com/agreementWarrantyDynamic.do to find the model.

Windows 7 no longer boots after upgrade from Lion to Mountain Lion

I got a late 2011 MacBook Pro, on which I installed Windows 7 with Boot Camp. After I upgraded from Lion to Mountain Lion, I can no longer boot Windows. If I keep the option button pressed during boot I only get the OS X and recovery options, and if I choose to boot Windows from the system preferences pane, I get a message that says that no bootable device was found. However, I'm sure that the partition is still there, because I can see it in finder and browse the files normally. How can I boot Windows again?

"Easier" in this case as an alternative is defined as repartitioning/reformatting your disk, and restoring from backups (which for most people also means starting from scratch with Boot Camp Assistant and Windows since most users aren't backing that environment up).
What you did is, in my opinion, easier and faster. But if you don't know what you're doing can lead to data loss. But then, by definition, blowing away your disk and starting over with a restored backup begins with data loss!

MacBook no longer detects my video card?

I have (had?) a Intel GMAx3100 on my MacBook, but after starting up today and having the standard background and noticing slight coloration differences, I checked the Graphics/Display tab in the system profiler, and it now says "Type: Display" instead of listing my normal card, and I can no longer change screen resolutions.
I checked my Extensions folder, and the AppleIntelGMAX3100 drivers and kexts were no longer there, so I copied them back from my ExtensionsBackups folder, and then my computer would no longer boot up, except in safe mode.
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First step is to reset PRAM
■ Shut down your computer. Turn the computer back on and immediately hold down Command-Option-P-R, continuing to press until you hear the startup sound for the second time. This resets the computer’s parameter random-access memory (PRAM).
IMPORTANT: Resetting PRAM may change some system settings and preferences. Use System Preferences to restore your settings.

Macbook will not boot after 10.5.2 install

After installing the 10.5.2 update via software update (from 10.5.1) my macbook will no longer boot. I get the Apple logo for about 5 seconds then I get the 'You need to restart your computer' message. I can't get past this point. Any suggestions on how to get my laptop back to life would be appreciated.

Start by:
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger and Leopard.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now shutdown the computer for a couple of minutes and then restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.1 for Leopard) and/or TechTool Pro (4.6.1 for Leopard) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
Then download the standalone updater and reinstall 10.5.2. If that doesn't solve your problem then you will have to do an Archive and Install.
How to Perform an Archive and Install
1. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
2. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
3. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
4. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
5. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.

MacBook will not boot after iTunes 10.5.2, iPhoto, and Safari update

My MacBook (mid 2007) will no longer boot after the iTunes 10.5.2, iPhoto and Safari update. It will load Lion but will no open any applications. After running Repair Disk Permissions and Repair Disk in the Recovery HD, Lion will ask for my password, log in, then display the menu bar and a grey background and remain unresponsive. I tried downloading a new copy of Lion in Recovery HD but it will not get past about 1/8 of the download bar before freezing and becoming unresponsive. Any ideas?

Any ideas?? I really need to see if this is fixable! Thanks!

MacBook won't boot when iPod is connected

I have the same problem as described here :
http://discussions.apple.com/message.jspa?messageID=4112865
My MacBook won't boot if my iPod 5G is connected to the USB port.
If I unplug it, it will boot normally.
Does anyone know what could cause that ?

<When iPod is plugged in at startup, the MacBook does not startup; unplugging iPod lets it startup.
yes, it seems that the kernel is not loading
<After resetting the iPod and BEFORE synching it, there is no problem. Any type of synching seems <to make this problem recur.
only syncing music make the problem occur.
the other syncing works ok
<Even if iPod is connected directly to Mac and it is the only USB device connected, the problem still <occurs.
yes
<The iPod and MacBook work fine if iPod is connected after startup.
Yes
<If the iPod is set to NOT mount to the desktop, the problem with startup does not occur.
Yes, but there are some problems in the boot/halt process.
something like "killing all" fails and unmounting /home fails (45) blabla...
and the stopping process takes very very long, about 2 minutes.
thx robert

Made a new partition on Macintosh HD, Boot Camp will no longer boot.

Specs:
MacBook Air 2013
8GB RAM
i7
512GB SSD
Hello all, looking for some assistance.
My HD is formatted to 400GB of OSX and 80GB of Boot Camp. I stupidly made the mistake of adding a new partition out of the large amount of free space I have on the OSX partition, to format the new partition for Windows. This made Boot Camp no longer boot. On the Disk select screen after holding Option on boot, my Boot Camp partition is not visible. I can see everything on the partition on OSX, however.
To try and fix this, I deleted the new partition and tried to reduce the hard drive back to the original two partitions. However, I cannot extend the OSX partition to fill in the new free space. So now I have a Boot Camp partition, my OSX partition, and 20GB of unused, free space that I cannot use or put back into the original partition.
I asked AppleCare live chat for any assistance, they suggested that I use "Erase free space" in Disk Utility to use the space again. However, the option is greyed out on both the drive and the Macintosh HD partition.
After a bit of googling I saw a suggestion of making a USB Recovery drive to get the space back through Disk Utility that way. This still did not work; the results were the same, unable to add the space back to the original partition, and "Erase free space" is still greyed out.
Using BootChamp (notice the H, this is an app that allows you to restart and boot directly into Boot Camp through OSX), I get a DOS screen saying "No bootable device – insert boot disk and press any key". I cannot get this screen any other way.
I have repaired and verified the disk and its permissions, to no avail.
I cannot think of anything else to do short of formatting the entire drive but this is obviously less than preferable. I additionally do not have a backup of the BootCamp partition (as it is not accessible), even though everything is visible on the partition through OSX.
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"rEFIt is an alternative bootloader for your Mac that's a lot more forgiving. If you don't think investing in iPartition is worth it, I'd give this a shot:
In rEFIt, do not boot: go to the EFI shell, and type "gptsync". This will tell you that the partition table is out of sync, and will offer to sync it for you. Say "yes", naturally. Now reboot and all systems should be go!"
This worked.

Macbook won't boot after Airport update, stuck in single user mode

Wasn't sure what forum to put this in, so I'll start here. After re-imaging student machines from the server, for some reason the new Macbooks no longer recognize they have an airport card. On another machine I download the appropriate Airport software, copy to thumbdrive, and install on student laptop. After required reboot, the Macbook refuses to boot into OS X- I get the grey apple logo, spinning gear, then drops to what appears to be single user mode, with the exception that it seems to be "refreshing" itself constantly with messages appearing for brief moments (too fast to read). It cycles so fast that I can't type anything before it is gone again. If I purposely boot into single user mode, everything behaves as normal, if I mount as fire-wire drive, everything looks good. But I can't get into OS X. Before I brick more student machines, have any ideas?

Some added info, i CAN boot the bricked machine into Safe mode, but at reboot I get stuck in the same cycle again.
Oh, and in SafeBoot, the Macbook still tells me that no Airport card is installed, even though I know it does (and it's not knocked loose or anything).....

MacBook Won't Boot Up All The Way

Hi, I have had my macbook for quite a while, and it has had problems before like a non working battery and random brightness changes but ever since I installed the latest security update it will not boot up all the way, first it takes a long time for it to pass the white screen with the Apple logo and loading circle, after that it reaches a blue screen, with no response. Once it made it to my desktop background but none of the icons or dock showed up. Any help?

I have the same problem mentioned in the original message. I downloaded the updates and my computer will no longer boot up. I put in Disk one of the install disc, but that did nothing and now I can't get the disk to eject. I was going to try disk 2, but can't get disk 1 out.

Macbook no longer boots

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