Mountain Lion Won't Install on hard drive

I am trying to install Mountain Lion on top of Lion on my startup/main sys hard drive. It says it can't install becuase the drive is not formatted as Mac OS extended with Journaling, use disk utility to turn on journaling or reformat the drive. When I go to Disk Utility, that option is not available, it is greyed out? I don't want to reformat the drive and loose everything? What can I do?

spritzdog wrote:
When I go to Disk Utility, that option is not available, it is greyed out?
Did you select the partition (indented, under the main line for the drive)?
The sample is on an external, but should be the same on your internal. If not, please either post a screenshot of yours, or note what's different.
I don't want to reformat the drive and loose everything? What can I do?
Does that mean you don't have backups? If not, that's risky. Hard drives fail, things go wrong, people delete things in error.

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spritzdog wrote:
When I go to Disk Utility, that option is not available, it is greyed out?
Did you select the partition (indented, under the main line for the drive)?
The sample is on an external, but should be the same on your internal. If not, please either post a screenshot of yours, or note what's different.
I don't want to reformat the drive and loose everything? What can I do?
Does that mean you don't have backups? If not, that's risky. Hard drives fail, things go wrong, people delete things in error.

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Just Follow this procedure...
1. Go To BOOT CAMP and create a BLANK PARTITION. Say a minimum of 10 GB. You do not have to install anything on this.
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Try this it should work.

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Doug

I recommend backing up your system, and before going into the install, checking disk utility > verify disk > macintosh hd partition > to make sure the partition is okay.
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Macbook Pro Late 2011, Bought 6 months ago.. Mountain Lion won't install

I recently bought a new macbook pro 6 months ago, and with lion, I have tryed to download mountain lion but it does not work, it says this disk cannot be used to start up your computer, i tried clcking on the recovery partion as well but that also does not work, I would be very gratefull if you can help, if you need any extra information just ask!

Install from USB stick (min 8 GB) ...
If you do not know how to do this see the link below ...
http://osxdaily.com/2012/02/17/make-bootable-os-x-10-8-mountain-lion-usb-install -drive/
Second ... Boot from USB drive (select the alt key on restart)
3rd ... Before installing the system - do disk format
Only the partition (GUID) allows the installation of the system.
Take a look at the following picture ...
Regards Adam

Mountain Lion Won't Install on hard drive

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