Macbook won't reboot after updates

Hi, I did a round of updates last night through the software update feature.
The MacBook seemed to almost finish installing. The bar was 95% across.
But never finished. I let it go over night. This morning screen saver was on.
Machine could not be woken up. I held power button in for a bit to shut down.
Tried to boot up machine. Gets to the gray screen but just spins. Never boots up.
The MacBook is a Black Plastic one from March 2007.
10.7 2 GB RAM. 160 GB HD.
Any ideas ?
Thanks

She bought the computer used so unfortunately she does not have the start up disk. She also has not backed up the information on the computer but we are more concerned about getting the computer to work because she cannot afford to buy a new one and she has barely had this one more than a year. The only thing that is connected to the computer is the power cord and the battery is shot so we cannot disconnect the power cord and use the computer. Well I read the instructions on starting up in safe mode so I hold the power button until I hear the obnoxious beep and then hold the shift key down until u see the little gear thing and apple logo. Well I get the apple logo but no gear and then I get the pop up window that I spoke of before telling
Me to restart and there is the lines of "code" in the back ground.

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2006 Macbook won't reboot after losing power during update:

My older Macbook lost power during software update (battery is dead and only works while plugged in to outlet) and now will not reboot. I get the apple screen with the spinning wheel of doom. Please help! My 5 year old son is very upset that he messed up mommy's computer.

Reinstall OS X without erasing the drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard 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 Utilities menu. 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.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro 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.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.

MacBook won't reboot after SMC update

ok here's a weird one, anyone else have this problem? ran the SMC update on the MacBook, machine shut down like it's supposed to, but never restarted. if you attempt to restart it the machine just freezes at the blue screen.
machine is plugged into AC power.
SMU reset.
battery removed.
any ideas?

Ill explain in detail what my therory is with the blue screen. The problem is 10.4.7 messed up how pram settings are saved on some macbooks and the pram also saves what system folder the computer loads by default and when the computer PRAM isent saved right the computer wont know what system folder to load thats why you get a weird blue screen when you try to boot, this is why zapping the pram will let you start up
another clue its a software issue is because the start up chime comes on which means the software has started to load and seeing as how the blue screen happens after the chime it must be a software issue, if it were to show up without the chime (like the colored vertical lines did in some macbooks my last one included) then it would most likely be a hardware issue
and also i called and talked to a MacBook product specialist for about an hour and he to came to the conclusion this was a software issue
-eric

MacBook won't boot after updates

My girlfriend has a black 13" MacBook and we ran updates on it today and after it had installed all the updates and it went to reboot it now won't boot up. It turns on and you see the apple logo but then it comes up with a window saying that it needs to be restarted and in the background there is a few lines of "code." I am a PC user so I am doing my best to help her resolve this problem. I do love my iPhone and iTunes so don't hate me too much haha. I did some research on here and read how to boot up in safe mode and I tried to do this but it didn't work. Any help would be greatly appreciated.

She bought the computer used so unfortunately she does not have the start up disk. She also has not backed up the information on the computer but we are more concerned about getting the computer to work because she cannot afford to buy a new one and she has barely had this one more than a year. The only thing that is connected to the computer is the power cord and the battery is shot so we cannot disconnect the power cord and use the computer. Well I read the instructions on starting up in safe mode so I hold the power button until I hear the obnoxious beep and then hold the shift key down until u see the little gear thing and apple logo. Well I get the apple logo but no gear and then I get the pop up window that I spoke of before telling
Me to restart and there is the lines of "code" in the back ground.

Macbook won't boot after Update, mach_kernel error, can't reinstall

I have a Macbook 13" with a 1.8ghz C2D with 2gig ram.
I attempted to install the update to 10.4.10 from 10.4.9 today and when it rebooted it went straight to kernel panic mode (circle with slash through it with a flashing file folder with a question mark). Cannot do anything at this point.
When I rebooted in verbose or single-user mode it gave this:
.Looking for kernel cache file 'System\Library\com.apple.kernelcaches\kernelcache.F8149E9B'
Loading 'mach_kernel'
Could not open file 'mach_kernel'
Error Loading kernel 'mach_kernel'
I then rebooted with the OSX 10.4.8 installation disk. Went to disk utility and tried to repair the disk. It failed. I then opened terminal and was able to see my disk drive located at /Volumes/Macintosh HD/
I do not see the mach_kernel file located in root though.
There is a:
mach -> /mach.sym
and right under it there is
mach.sym
Well, Next I attempted to reinstall OSX but tried a minimum install with the "archive and install" trying to "preserve users and network settings."
This attempt at an install failed giving the error "There was an error installing the software" and "please try installing again."
I attempted to install again with the same result
The regular test and extended Apple Hardware test came back okay as well. Any ideas?
Here is some more information:
When I run Disk Utility from the install disc and try to Run the First Aid on the Hard Drive The errors are as follows:
Invalid Key Length
Volume Check Failed.
Error: The underlying test reported failure on exit
1 HFS volume checked
1 volume coiule not be repaired because of an error.
Also when I run the "Verify Disk" portion of Disk Utility I get:
Invalid Key Length
The Volume Macintosh HD needs to be repaired
Error: The underlying test reported failure on exit
1 HFS volume checked
Volume needs repair
I tried calling apple support thinking they might help me because the problem only occurred when I tried to update with their software update. They refused to help me unless I payed 50 bucks! They did refer me to this forum. I have really enjoyed my 7 months with the Macbook and cannot afford to lose the data on the hard drive. If you guys can help I would much appreciate it. Thanks.

First off, you are not seeing a kernel panic but an inability to load the kernel file "mach_kernel," which is damaged or missing.
This is apparently because of a file system error (Invalid Key Length), a serious error Disk Utility is not designed to repair, since the repair usually involves loss of data & that app is very conservative about such things.
It is almost impossible that the update itself is responsible for creating this error but very common for one to exacerbate it if it already exists. This is because file system errors corrupt files when the OS writes files to the disk, & updates write a lot of files to the disk.
If you have implemented a backup strategy, the fix is straightforward, if a little time consuming: reformat the drive, do a new install of the OS from the installer disks, & restore your data from your backups.
If you have not implemented a backup strategy, you now know why one is essential: no data you cannot afford to lose should reside only in one place like your internal hard drive. Data is lost every day because of human error, theft, hardware failure, or a host of other reasons. Only a good backup strategy can prevent this.
Assuming the second situation applies to you, your best bet is to purchase a more powerful disk repair utility like DiskWarrior to see if it can repair the file system damage with minimal data loss. Be sure you read & heed the app's manual before using it! Failure to do so, or attempting to use the computer before the errors are repaired, will almost certainly result in more data loss.

Macbook won't boot after Update, mach_kernel error

I have a Macbook 13" with a 1.8ghz C2D with 2gig ram.
I attempted to install the update to 10.4.10 from 10.4.9 today and when it rebooted it went straight to kernel panic mode (circle with slash through it with a flashing file folder with a question mark). Cannot do anything at this point.
When I rebooted in verbose or single-user mode it gave this:
.Looking for kernel cache file 'System\Library\com.apple.kernelcaches\kernelcache.F8149E9B'
Loading 'mach_kernel'
Could not open file 'mach_kernel'
Error Loading kernel 'mach_kernel'
I then rebooted with the OSX 10.4.8 installation disk. Went to disk utility and tried to repair the disk. It failed. I then opened terminal and was able to see my disk drive located at /Volumes/Macintosh HD/
I do not see the mach_kernel file located in root though.
There is a:
mach -> /mach.sym
and right under it there is
mach.sym
Well, Next I attempted to reinstall OSX but tried a minimum install with the "archive and install" trying to "preserve users and network settings."
This attempt at an install failed giving the error "There was an error installing the software" and "please try installing again."
I attempted to install again with the same result
I tried calling apple support thinking they might help me because the problem only occurred when I tried to update with their software update. They refused to help me unless I payed 50 bucks! They did refer me to this forum. I have really enjoyed my 7 months with the Macbook and cannot afford to lose the data on the hard drive. If you guys can help I would much appreciate it. Thanks.
macbook Mac OS X (10.4.9) 2gb ram

The extended Apple Hardware test came back okay as well. Any ideas?
Here is some more information:
When I run Disk Utility from the install disc and try to Run the First Aid on the Hard Drive The errors are as follows:
Invalid Key Length
Volume Check Failed.
Error: The underlying test reported failure on exit
1 HFS volume checked
1 volume coiule not be repaired because of an error.
Also when I run the "Verify Disk" portion of Disk Utility I get:
Invalid Key Length
The Volume Macintosh HD needs to be repaired
Error: The underlying test reported failure on exit
1 HFS volume checked
Volume needs repair

MacBook won't reboot after Kernel Panic!

Hi everyone! Been reading these boards for a while and it turns out now I need help.
I was simply browsing the internet (Safari 3) earlier when my one year old MacBook suddenly stopped working with a Kernel Panic. At the time of the crash I had my external USB drive and a USB-MIDI interface connected, both of which have never caused me any problems whatsoever.
I switched off my external HD and restarted my Mac, thinking this was just an exceptional error. Unfortunately, upon restart, my MacBook gave me the following error message:
panic(cpu 0 caller 0x003ABD33): Unable to find driver for this platform 'ACPI'.
And then went into Kernel Panic
I then decided to try and boot off my OSX startup disk. Thing is, I can't even get to this screen anymore. Subsequent restarts result in a black screen and the sleep light being lit, but nothing else seems to be working. The disk drive makes a short 'eject' noise which is usually followed by the boot sequence but it's as though the whole machine just freezes after making the sound. Sometimes it will go into some sort of loop and repeat the eject noise until I kill the power.
My MacBook (white) is just 13 months old (out of warranty), 2.16 Ghz C2D, 2 GB RAM. Running OSX 10.4.11 with all updates. Never had a problem with it until today. It's been looked after well and has had regular disk checks, permission repairs and running of maintenance scripts.
Any help would be most appreciated.

I have already tried unplugging everything, the problem is that I cannot even get to the startup process. The screen doesn't even turn gray, so I can't even boot up in safe mode.

80gb classic won't reboot after update

Apple sent a update notice for my ipod, downloaded as instructed, waited as required for the ipod to reboot. The unit keeps cycling on from the glowing apple screen to a black screen, unable to reboot. I have tried the hold buttone and the reset by pressing menu and select at the same time...same deal. Can't see the ipod on my computer any more or in itunes.
Any insights?

Maybe these two documents might help:
iMac: If You Can't Eject a CD or DVD, or Open the Drive Tray
Macintosh: How to Eject a Disc When Other Options Do Not Work
Patrick

ITunes won't open after update; MacBook Pro, Mac OSX 10.6.8, iTunes version 11.1.5

iTunes won't open after update - help, please; MacBook Pro, Mac OSX 10.6.8, iTunes version 11.1.5.

i had a problem similar to yours and better yet, i have the fix for it. i downloaded maverick 4 months ago and was without itunes ever since. all itunes icon did was bounce. itunes would never open and whats more, is when i would try to update it, i would get a "thank you for downloading itunes!" page , but the download would never work. so i scoured the net for solves. nothing that worked. <4 months later> then last night i took a new approach. i decided even though maverick would not allow me to uninstall itunes, i would find a way to uninstall itunes. then i would reinstall back to 11.1.5 i was successful and heres what i did.
step one-
Back up your iTunes Library.itl file, found under ~/Music/iTunes
(even tho i didnt, i only had 3 artists in there at the time. and they didnt get erased but i advise you back up just in case.)
step two-
download itunes 10.7 from apple. i used this link Download it from Apple here
(i pulled the link from Aarons website (awesometast.com). you download 10.7 however you want but i used the link above and have had no issues).
although im not sure you need to do this step ( you may be able to download 11.1.5 itunes without 10.7, i did because i was following intructions from http://awesometoast.com/downgrading-to-itunes-10-7-from-itunes-11-on-osx/
step 3-
open Terminal
step 4-
enter in these 3 commands hitting return after each line. 1st line nothing seems to happen, 2nd line nothing seems to happen and 3rd line gives you a warning and requires password to continue. when i did it, my password didnt appear as i entered it and i hit return without looking, so i entered it in again, although im not sure i had to the 2nd time.
killall iTunes
killall "iTunes Helper"
sudo rm -rf /Applications/iTunes.app/
step 5-
drag off and dump the itunes icon (which now has the ? shadow in it) off your dock.
step 6-
install 10.7 itunes you downloaded earlier. (not sure if this part is neccesary. you may be able to just download 11.1.5 but i downloaded 10.7 because i was following Aarons steps.) itunes now works.
step 7-
go to apple and update to 11.1.5 itunes. install it. open it and you have itunes 11.1.5 in perfect working order. assuming you have a decent internet speed for the downloads, the whole process takes very little time.
with those steps above, you can solve itunes just bouncing and not launching issues and also the "thank you for downloading" and nothing downloads issue. enjoy. also i would like to give a shout out to http://awesometoast.com and thank Aaron for the knowledge that enabled me to get itunes back into my life.

Ipad Generation 1 unresponsive/won't reboot after App update

My Ipad became unresponsive or it would not reboot after updating a few App's update. It would go into a black/purple screen mode (along the edges) with "no" apple logo. I tried the resetting method (top side button and home base button) and it did not reset. I tried resetting via itunes and I made sure that my Itunes was up to date but it still did not reset Ipad. I went on youtube and found out about a 'jailbreak' system known as 'redsn0w' and follow the instruction to break up whatever was causing my Ipad to become unresponsive. I believe this 'jailbreak' help to reboot the Ipad but I was not out of the woods just yet. For two weeks my Ipad was generating a "photo snap sound" when I tried rebooting the Ipad with the home base button. When connected to my macbook via iTunes it would also prompt or activate my iPhoto to load the photos from my Ipad. My Ipad 1 does not have a camera nor do I have an external (after market) one for that matter. The photo were the actual slide button to open the App's within the Ipad. I was baffled, confuse, and clueless. As I made several attempts to reset the Ipad It was still not displaying the apple logo and was not responding. I went back to 'redsn0w' to reboot and then reset it via Itunes to its original settings and later upload the latest firmware. While connected to my macbook, I was able to see all of my app's and began removing of them preferably Iphone app. I then decided hold off on the app's update and try to see if which of the App's was the culprit. It appears that the Ipad was confusing some or one of my "Iphone" app. I removed the iPhoto from the base of the Ipad and made it into a widgit with google earth. Then while viewing each of the app udate I saw that the "bump update" had something to do with photo. And it hit me, when I rebooted via Itune the first time the ipad rebooted but there was a brief moment where I tossed it on my back pack and it black out again. I then deleted this "Bump App" from the Ipad to prevent it from loading it lates update and I am happy to report the Ipad is now working properly. If you're not familiar with "Bump" this app is use with Iphone to exchage data/info from one iphone to another. I just now realize that you can also share photo wit "Bump" but not certain why this would cause this type of malfunction to my Ipad.
I don't know if this would help anyone out there but I would like to get the word out for anyone who may have this problem or situation. I welcome any other theory or better explanation because this is a conclusion that I came to.

My Ipad became unresponsive or it would not reboot after updating a few App's update. It would go into a black/purple screen mode (along the edges) with "no" apple logo. I tried the resetting method (top side button and home base button) and it did not reset. I tried resetting via itunes and I made sure that my Itunes was up to date but it still did not reset Ipad. I went on youtube and found out about a 'jailbreak' system known as 'redsn0w' and follow the instruction to break up whatever was causing my Ipad to become unresponsive. I believe this 'jailbreak' help to reboot the Ipad but I was not out of the woods just yet. For two weeks my Ipad was generating a "photo snap sound" when I tried rebooting the Ipad with the home base button. When connected to my macbook via iTunes it would also prompt or activate my iPhoto to load the photos from my Ipad. My Ipad 1 does not have a camera nor do I have an external (after market) one for that matter. The photo were the actual slide button to open the App's within the Ipad. I was baffled, confuse, and clueless. As I made several attempts to reset the Ipad It was still not displaying the apple logo and was not responding. I went back to 'redsn0w' to reboot and then reset it via Itunes to its original settings and later upload the latest firmware. While connected to my macbook, I was able to see all of my app's and began removing of them preferably Iphone app. I then decided hold off on the app's update and try to see if which of the App's was the culprit. It appears that the Ipad was confusing some or one of my "Iphone" app. I removed the iPhoto from the base of the Ipad and made it into a widgit with google earth. Then while viewing each of the app udate I saw that the "bump update" had something to do with photo. And it hit me, when I rebooted via Itune the first time the ipad rebooted but there was a brief moment where I tossed it on my back pack and it black out again. I then deleted this "Bump App" from the Ipad to prevent it from loading it lates update and I am happy to report the Ipad is now working properly. If you're not familiar with "Bump" this app is use with Iphone to exchage data/info from one iphone to another. I just now realize that you can also share photo wit "Bump" but not certain why this would cause this type of malfunction to my Ipad.
I don't know if this would help anyone out there but I would like to get the word out for anyone who may have this problem or situation. I welcome any other theory or better explanation because this is a conclusion that I came to.

My MacBook Pro won't restart after updating iTunes, and so the update doesn't work. I have just purchased an iPad mini and can't sync it - can anyone help?

My MacBook Pro won't restart after updating iTunes, and so the update doesn't work. I have just purchased an iPad mini and can't sync it - can anyone help

Press and hold power button for up to 30 seconds. Remove battery and reinsert then repeat.

4s won't reboot after ios7 update. I have restored 4 times. Every time it gets stuck on Apple icon with update bar at 10%

4s won't reboot after ios7 update. I have restored 4 times. Every time it gets stuck on Apple icon with update bar at 10%
HELP!

That's one of the weird things.. it recognizes it maybe 10% of the time. And usually, only after I do the two-button reset. Problem is.. since it won't charge above 2%, anytime I try to do a restore or anything like that using iTunes, my device shuts off and I lose whatever progress I'd made.
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My Mac book pro won't restart after updating to lion ! Said problem a cured at startup press any key ! No Goodrich

Press and hold power button for up to 30 seconds. Remove battery and reinsert then repeat.

Mac won't boot after updating to OSX 10.6.4

I am on my 3rd Mac that won't boot after updating to OSX 10.6.4. One MacBook Pro and two iMacs. I fixed one but the last two are getting the better of me. HD is not fried. Have tried every keyboard shortcut on startup, Disk Warrior via. Target Disk, repairing permissions in single user mode. The machines will not boot off of a CD or DVD and it will not boot up in safe mode. Something in the startup files is preventing startup. I am suspecting Sophos antivirus. I tried to uninstall it and trash it but I think it's still blocking something. Any help would be appreciated.

Got it! Not sure if removing Sophos had anything to do with it but here's what I did.
1) boot dead machine in Target Disk Mode (iMac)
2) boot good machine off Snow Leopard disk (MacBook)
3) install OS to dead machine- I found this next part very curious. When the install was complete the MacBook restarted as the iMac.
4) ran software updates
5) shut down MacBook then shut down iMac
6) rebooted iMac- all was good
I actually did this twice because a co-worker had the exact same problem on her MacBook Pro. Got both fixed today.
Thanks everyone for your help!

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I had the same problem after updating to iOS 7 today. I did follow the advice on another site, but additionally rebooted my iMac. Worked after that.
Follow these steps to reset the Lockdown folder:
Disconnect all iOS devices from your computer and quit iTunes.
From the Finder, choose Go > Go to folder.
Type the following and then press Return:
/var/db/lockdown.
The Finder window should display one or more files with long alphanumeric file names.
In the Finder, choose Edit > Select all. Then, choose File > Move to Trash. Enter an administrator password if prompted.
Note: Do not delete the Lockdown folder itself. Delete only the files contained inside the Lockdown folder.
Reconnect your iOS device and open iTunes
My Additional step: reboot the Mac. Your iPad should give the first indication that it has worked by asking you to "trust this computer" or some such. Agree. Then iTunes should have reopened with your iPad showing and syncing.

Macbook won't reboot after updates

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