
Edit Step 5 ¶
Select your new hard drive from the left column in Disk Utility.
The correct partition type needs to be set for your hard drive.
If it's a brand-new hard drive, it may have no partition listed.
For an Intel-based machine, you should have "GUID Partition Table" listed.
For a Power-PC-based machine, you should have "Apple Partition Map" listed.
If the incorrect partition type is listed, proceed to the next step to delete and re-create the partition. If not, proceed to step 8.
Warning: Deleting the partition will erase the entire contents of the partition.

Edit Step 6 ¶
The following two steps are only necessary if your drive's partition is set incorrectly. Erasing a partition will permanently erase all information stored inside.
Select the partition on the drive and click the "-" button.
When prompted, click the "Remove" button to remove the drive's existing partitions.
Once the partitions have been removed, click the "Options..." button.
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