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Old 02-08-2010, 06:54 PM
srs5694 srs5694 is offline
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Join Date: Jan 2010
Location: Woonsocket, RI
Posts: 29
There are a couple of issues here.

First, you must have free space on the drive to create a new partition. In this context, "free space" means space that's not currently allocated to partitions; you could have hundreds of gigabytes of free space available within a partition and it would be useless for installing a new OS. If you don't have unpartitioned space, you'll need to use a partition resizing tool (such as GNU Parted or one of its GUI variants) to resize and/or move your partition(s). A caution: Windows tends to be fussy about its boot partition. If you resize your Windows boot partition, it might stop booting. Test and, if necessary, repair it before you proceed.

Second, the OS X Disk Utility is rather inflexible and confusing in some respects. I recommend you create a partition in another utility. If possible, use that utility to create a partition of type 0xAF (the type code for HFS/HFS+) and/or create an HFS+ filesystem on the partition when you create it. If your partitioner doesn't support this, then try to make it FAT (type 0x0C); Apple's Disk Utility will probably let you reformat that for HFS+.
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