Disk Utility can't create a new partition

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SdeJonge Author

Level 1

10 points

Disk Utility can't create a new partition

Hello,

I'm trying to create a new partition to install Windows 7 on, but I am unable to do so.

At first I tried to do this with Boot Camp Assistant, but it didn't work.

Then I tried to create a FAT partition with Disk Utility, which didn't work either.

So I verified and repaired the disk, tried to create the partition again, yet it still didn't work.

I verified and repaired the disk and tried to create the partition while running the OS, in Safe Mode and from the Mac OSX Install DVD.

Neither of them worked.

I noticed while running the OS, the info of the HD said the capacity is 749.81 GB, while checking that from the Mac OSX Install DVD it only says about 700 GB (I mentioned 698.6 GB).

Strange..

It might also be important to mention that I recently (2 days ago) I installed a new HD: Western Digital Scorpio Black 750 GB, and today I swapped my 2x 2GB RAM for 2x 4GB RAM (Samsung).

On my previous HD, the Fujitsu 250GB, this proces was no problem at all. I installed W7 on that drive just a week ago.

I made a clone of the Fujitsu HD and "back-upped" it to my new WD HD. The W7 partition on the Fujitsu HD was 50GB, which is the difference in capacity mentioned above. I'm not sure if there's a link here..

I've got a MacBook Pro from mid 2009.

I'm not sure what to do next... I'm stuck!

Any help is greatly appreciated!

MacBook Pro, Mac OS X (10.7.2)

Posted on Jan 5, 2012 12:56 PM

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Answer 1

Best reply

BobTheFisherman

Level 9

79,165 points

Jan 5, 2012 1:13 PM in response to SdeJonge

Use Boot Camp Assistant to remove the existing Boot Camp partition. Then start again following the Boot Camp Instructions for Lion. http://manuals.info.apple.com/en_US/Boot_Camp_Install-Setup_10.7.pdf

Boot Camp questions should be posted in the Boot Camp forum where the Boot Camp gurus hang out. https://discussions.apple.com/community/windows_software/boot_camp

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Answer 2

SdeJonge Author

Level 1

10 points

Jan 5, 2012 1:21 PM in response to BobTheFisherman

Good thing to mention that, I forgot to do that.

Unfortunately it did not help.. The screen to remove the existing Boot Camp partition does not pop up, it just tries to create the new Boot Camp partition.

The partition I'm trying to create it 150GB. The 50GB mentioned above was on the stock Fujitsu 250GB disk.

Edit:

I'm actually trying to avoid using Boot Camp Assistant.. I became to dislike the utility due to problems creating a partition on my previous HD.

I would like to create a partition using Disk Utility and then install Windows 7 by selecting that DVD to boot from.

Thank you for the tip though, I'll post it there as well!

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