Previous 1 2 3 Next 39 Replies Latest reply: Jan 7, 2013 1:05 PM by alexanderfromcalgary
alexanderfromcalgary Level 1 Level 1

Hey guys. I'm having huge problems!!!! Please prepaid to me ASAP!! I need this computer to work otherwise I'm screwed for middle schools ( it needs to be fixed by Monday this week )




My Mac wont boot. Every time it boots it will crash.

This is the boot in verbosboot or however you call it, is on YouTube with this link here:


I recorded it just so you know how long it boots. This is how long it takes for it to hang on the apple logo with a spinning wheel. At the end of the log when it shuts down. The wheel freezes. Then the Mac reboots and says it restarted because of a problem. Or as I call it kernel panic.

Here are the fixes I have tried:

1. Reinstall OS X: tried it. Still nothing changed... :(


2. Reset pram and VRAM: nothing changed :(


3. Safe mode: does the exact same thing. :(


4. Verify the disk in recovery mode with disk utility: says its fine :(



This is a mid 2012 15-inch MacBook Pro

8 core intel processor

8GB installed RAM

500GB hard drive / RPM: Unknown

Age: 6 months from purchase

OS: OS X 10.8.2 / Mountain Lion AKA latest version of OSX



I don't know if it was cause I plugged in a new external hard drive but it does not seems so. But however it has been put to sleep instead of being shut down for about 2 weeks ( why? Cause I'm on holidays. And too lazy to shut it down and than wait 2 min in the morning to play games )

Was perfectly fine before I stop shutting it down...

MacBook Pro (15-inch, Mid 2012), OS X Mountain Lion (10.8.2), Crashes upon startup
Solved by alexanderfromcalgary on Jan 6, 2013 9:57 PM Solved

Solution found!


First of all I did was move the files on the HD onto the external hard drive.

Then I made 2 partitions on the external hard drive.

One partition has the OS.

On the other partition you go into Internet recovery and reinstall OS X on the 2nd partition.

Then I installed a brand new OS X on the HD in the laptop via Internet recover too and then moved the following files in the old backup if the hard drive into the fresh OS X:







Now it won't work yet.

You need to then reopen Internet recovery. And then click on reinstall OS X and do it to the HD on the laptop. Then boom. It's working. All it needs now is a Couple of updates and you ready to work!


To get into Internet recovery:

When the system is off. Press the power button.

As soon as you hear the startup chime or see the screen turn on, hold down te following keys until a gloab appears on the screen:

Command ( apple ) + option ( alt ) + r

Then you let it load the Internet recovery files off the internet and boom you in Internet recovery.


If you read this disscussion and have problems at startup, do this exactly IF. Your problem is mostly completely similar to my problem.

To make sure. Read the whole first post at the top to make sure this is the right solution.

Reply by Shootist007 on Jan 5, 2013 3:55 AM Helpful

Sure I can but you need a Working Operating system first. There is no way, or not a very easy way to do it, without a working version of OS X.


You can use either the built in Recovery HD or maybe better to use the Online Internet Recovery system, Hold down the Command+Option+r keys at startup until you see a spinning globe in the center of the screen, to Partition that external and then install Mac OS X on it so you can at least start the system.


To Repartition that external have it connected to your Mac then boot from either of those options. Once you have booted from the built in Recovery HD or the Internet Recovery system open Disk Utility and shrink the partition that is on that external. You do that by selecting the drive name (The Top entry in the left hand column) and select the Partition tab then Drag up from the bottom right hand corner of the Partition Layout sections until you have shrunk the main partition by about 30-40GBs. Then click Apply. Wait for that to finish then click the Plus sign in the Partition Layout section and name the partition and format it Mac Externded (Journaled) with a partition table of GUID (that is done from the Options button). then again Click Apply. Once that is all done exit Disk Utility and select Reinstall Mac OS X and then continue. It will ask you fpr the drive to install To. select the new partition on the external and then wait for it to download and restart the system to start the install.

Reply by thomas_r. on Jan 6, 2013 4:27 AM Helpful

It sounds like you have solved your problem, then. There is no point in trying to identify which files were damaged. Something in that system was corrupt, that's certain, although its a bit of a puzzle why reinstalling the system on top of the damaged system didn't fix it. In any case, just copy your data into the new, fresh system (preferably without using Migration Assistant or Setup Assistant... do the job manually, since you don't know what else might have been corrupt, like settings files in your user account and whatnot). Then delete the corrupt system from the external drive and use that for backups. You'll want to be vigilant about backups, as it's still entirely possible that the internal hard drive is failing and files will continue to become corrupt.

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