Macos – Strange error when Bootcamp attempts to create partition for Windows

boot-campmacososx-snow-leopardpartitioning

I get a strange error when I tell Bootcamp to create a partition for Windows. I get to the Create a Partition stage. I select 20GB for Windows leaving 91GB (39GB free) for OS X. I then click Partition and it gives me the following error

The disk cannot be partitioned because some files cannot be moved.

Back up the disk and use Disk Utility
to format it as a single Mac OS
Extended (Journaled) volume. Restore
your information to the disk and try
using Boot Camp Assistant again.

My disk is formatted in Mac OS Extended (Journaled), I have closed all applications (besides Bootcamp Assistant) and I have even restarted and tried again to see if that might help. Nothing. I can't get it to partition.

I also tried to create the partition using Disk Utility and I got the following error

Partition failed

Partition failed with the error:

Could not modify partition map because
filesystem verification failed

Any ideas?

BTW – I am running OS X 10.6.2

Best Answer

I encountered this error a few months ago when I attempted to create a partition. I followed bootcamp's instructions (ie used time machine to backup the entire disk and reformat) and all worked fine.

Took a while to perform the backup and restore though :(

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