This Mac OS Extended (Journaled) selection is what formats the drive for Mac.Ĩ. In the Format dropdown, choose “Mac OS Extended (Journaled).” You can also name your drive by putting something in the Name field, if you want. On the right-hand side of the same window, towards the top, you’ll see “First Aid” “Erase” “Partition” “RAID” and “Restore.” Click on “Erase.”ħ. If that’s the case, select the upper one (the one that’s not indented).Ħ. You might see 2 drives that both look like your new external hard drive–one with one name, and one just below it, indented, with a different name. One of the items should be the brand-new drive that you just attached to your computer–the one you want to reformat. One of them will be your computer’s internal hard drive one may be the DVD drive that’s in your computer. In the application, on the left-hand side is a white box that shows all your available drives. Double-click on it to run the application.ĥ. Inside your Utilities folder is an application called Disk Utility. Inside your Applications folder is a Utilities folder.
#FORMAT SEAGATE EXPANSION DRIVE FOR OSX HOW TO#
(If you don’t know how to do this: Click on the Finder in the Dock, and then in the window that pops open, you should see Applications as one of the items way over on the left side.)ģ. Attach your new drive to your computer via cable (USB or FireWire cable, depending on the drive), and plug it into the wall if it requires wall power, and turn it on if it has a power switch.Ģ. **DO NOT do this with a drive that has data on it! All your data will be erased! Only do it with a brand-new drive.**ġ.
Here’s how to reformat a drive for use with Mac. You might get slightly worse performance or see small stability issues.) However if you’ll be using the drive only on your Mac, you should do what’s called “reformatting.” (If you’ll be using the drive with both a Mac and a PC, don’t reformat it–leave it as it is. It’s great to have a wider selection, and often a lower price, than just the Mac items on offer. So you can choose based on price and looks. These days you can buy any external hard drive, not just the ones labeled for Mac.
#FORMAT SEAGATE EXPANSION DRIVE FOR OSX FOR MAC#
Photo by Miss Karen, courtesy Flickr Creative Commons.ĭid you know that when you buy an external hard drive to use with your Mac, it’s usually a good idea to set it up for Mac use?
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