[simkhai]

I am trying to create a new mac partition on a hard drive I have already partitioned using Boot Camp. When I try to do that I get this error message:
The disk appears to be partitioned for Boot Camp. The proposed changes may make this disk using Windows unbootable."

How can I partition it so I wont do anything harmful to the Windows partition?

Thanks
Joel Simkhai

[pheonixash]

Use Disk Utility instead.

[simkhai]

I did use Disk Utility.

[jmiddel]

You may have to accept that you cannot re-partition the drive using DU. First, ask yourself why and whether you need to partition, there may be other solutions. If you need to do it, the most prudent way is to backup your drive to another one, then reformat the first one and partition as you wish. Then just clone the two old partitions to the ones you want to on the re-partitioned disk, and you're good to go.

Oh, of course now you can do the same process from the original disk to the new one and have a backup, which you need anyway!!

[ghporter]

Because of the structure of a hard drive with both OS X and a Windows partition on it, there aren't any tools (that I know of, anyway) that will allow you to easily and safely change partition sizes or repartition a Boot Camp-partitioned disk. In order to get more than the two partitions you have, you would have to back up everything (both OSs), wipe the drive clean, and then repartition manually. After that, you'd have to keep track of which partition was set aside for Windows so you restored your Windows install to the right one. Not a task for the faint of heart. Doable, but a pain.

[wubrew]

And be prepared to reinstall window from scratch if it is Xp. Otherwise be prepared to deal with the dreaded "Missing NTLDR" s#$t associated with Xp. On the bright side -Vista is more forgiving. Still might need rescue disk from Bill's Site.