3/11/2019 0 Comments Format Usb For Mac Or Windows Use![]() I need to format an external USB drive to use in both windows and Mac. Which of the two scenarios below would be the better format? SCENARIO ONE Format the drive in Mac computer to one single (partition) drive: Format = ExFAT Scheme = GUID Partition Map SCENARIO TWO Split the drive to two partitions, then format each partition to: Partition two = Mac OS Extended (Journaled) Partition one = NTFS (for windows) In this scenario, If I remember, I think the Mac partition needs to be the first partition in the drive. Look into the Mac port of the NTFS-3G project if you need to write to NTFS disks from your Mac. The Disk Utility in MacOS version 10.5 is the nexus of file system management on your Apple computer. How to format a drive on a Mac Here's how to format a drive using a Mac - including how to format a drive for Windows and Mac so the contents can be read on both platforms, and what format to use. The overwhelming majority of USB flash drives you buy are going to come in one of two formats:. The first format, FAT32, is fully compatible with Mac OS X, though with some drawbacks that we'll discuss later. If the drive comes formatted in NTFS, which is the default file system for Windows, you're going to want to re-format the drive because Mac OS X can't write files to NTFS-formatted volumes (at least not without a bunch of extra work that's beyond the scope of this article). How do you tell which format your brand-new USB drive has? Hook it up to your Mac and launch the Disk Utility app, located in your Utilities folder (which is in Applications). Your new drive should appear in the left-hand column, and clicking the 'Partition' tab will bring up info on the drive which includes its current format. If the drive's format comes up as MS-DOS (FAT) or, less likely, ExFAT, you may be able to simply leave the drive as-is and not bother reformatting it. If the drive is listed as NTFS-formatted, you're going to need to format it to something else if you want full compatibility with Mac OS X. There are several possible file system formats you can use for a USB flash drive, and changing them in Disk Utility is as easy as selecting the number of partitions you want on the drive (usually just one), picking the format you want for the drive, and clicking 'Apply.' ![]() Note that this will erase all information on the drive, so make absolutely sure you've got copies of everything before moving forward. Disk Utility gives you five different choices for drive formats in OS X Lion. Unless you have extraordinary needs, you can safely ignore two of them: Mac OS Extended (Case-sensitive, Journaled) and Free Space. I'll discuss the advantages and disadvantages of the other three formats below. Mac OS Extended (Journaled) - This is the default file system format for Mac OS X drives. Advantages: Formatting your USB flash drive this way will give you full interoperability with Macs. It also includes support for features from OS X Lion, such as. You can even if you have the right files, the know-how, and a big enough flash drive, which will allow you to boot your Mac off an external disk if something goes wrong with your built-in drive. The 'Mac OS Extended (Journaled)' option will have the highest degree of support for Mac OS X features, and there's no limit to the size of files you can put on the drive. Disadvantages: Windows-running PCs can read files from drives formatted this way, but they can't write to them (at least not without the same amount of work it takes to get OS X to write to NTFS-formatted drives). If you're transferring files from Macs to PCs, this won't be an issue; however, transferring files from PCs to Macs won't be possible if your drive is formatted in 'Mac OS Extended (Journaled).' If you will only be working with Macs and not PCs, this may not be an issue. Otherwise, you may need to consider one of the file formats discussed below. MS-DOS (FAT) - This is Disk Utility's name for the FAT32 filesystem.
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