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Part VI: Appendices > Partitioning Your Drive

Partitioning Your Drive

If you choose to do a clean installation and like the idea of keeping Mac OS 9 and Mac OS X separate on your hard drive, here are the steps you need to follow for partitioning:

Boot your Macintosh from the Mac OS 9 CD-ROM that came in your Mac OS X package. To do this, start the computer with the CD-ROM in the drive while holding down the C key.

It’s important that you use the Apple-supplied Mac OS 9 CD-ROM rather than an earlier version of the operating system because some versions contain elements that could be incompatible.

After your Macintosh boots, start the Drive Setup application in the Utilities folder. There will probably be two entries: one for the CD-ROM that booted the system and one for the hard drive.

To begin partitioning, choose the disk in the list that matches the drive you want to use for your Mac OS X installation, and then click the Initialize button. If Initialize is grayed out, you’ve probably accidentally chosen your CD-ROM instead of the hard disk.

Drive Setup warns you that all the data on your drive is about to be deleted. Click the Custom Setup button to create a new partition scheme.

In the Custom Setup dialog box, choose the number of partitions that you want to use in the Partitioning Scheme pop-up menu at the top. By default, the partitions use the Mac OS Extended file system (HFS+), which is the option you’ll most likely need.

If you’re using an older iMac or G3, the first partition (located at the top of the volume layout) must fall within the first 8GB of drive space.

After choosing the partition layout using the Partitioning Scheme pop-up menu, click the OK button.

If you’re sure that there’s nothing you want on the disk, click Initialize.



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