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Mac disk utility format fat32

Seems like disk numbers greater than 1 should be used in all answers to this lest users erase their main drive. If you're comfortable with using the Terminal, try this: First, look at the partition table by running this command: EFI To do that, run this command: G-Man 5, 11 23 Alex Plumb Alex Plumb 1, 2 12 When I did the 'diskutil list' command, I got the following for disk1: And it doesn't show up in finder, and plugging it in brings up a window saying "The disk you inserted was not readable by this computer" and the buttons "Initialize," "Ignore," and "Eject.

I've learned something today: If the SD card is write-protected the result is a rather misleading error message.

FAT32 disk utility

Perhaps you can include that in the answer? Matthew Reynolds 1 3 This answer is pretty risky if you haven't first used some tool like diskutil to determine which device your SD card is.


  1. How to Format USB Flash Drive to FAT32 in Mac OS X | agfox.com.
  2. Step 2. Format/Convert USB to FAT32.
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  4. Format a disk for Windows computers using Disk Utility on Mac.
  5. Your Answer?

Good thing I didn't follow this answer blindly! Find the correct filesystem alias by typing this in Terminal: When specifying one as a parameter to a verb, case is not considered; also, diskutil allows certain aliases which are themselves case-insensitive.

How to Format FAT32 and NTFS Drives on Mac

Close any applications and exit any terminal prompt accessing the disk. If you want to do everything manually then unmount the disk using: Enter the following command, specifying your disk label and device appropriately: Sign up or log in Sign up using Google.

Step 1. Extract/Backup USB data before formatting

Sign up using Facebook. Sign up using Email and Password. The process of reformatting it will wipe all the data from it.

Which format to choose?

Click on the USB drive in the sidebar and then choose Erase from the toolbar at the top of the window. Choose a security level using the slider. However, it also increases the time it takes to format the drive quite considerably. You can download CleanMyMac X for free here.

Here's how to format USB on Mac

Which should you choose? The main reason for formatting a USB drive as Fat32 on a Mac is that you want to be able to use the drive on a Windows PC, as well as a Mac — perhaps to transfer files between the two machines. You may also be preparing the drive for use as, say, a storage device for a media player or to record TV programmes on a TV with a USB port. The fact that Fat32 can be read from and written to on both Mac and Windows makes it very versatile. However, there is a significant limitation — individual files have a maximum size of 4GB. There is a solution, however, exFAT.


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  • Part 2: Format NTFS Drive on Mac!
  • If you look for a quick and easy way to manage your drives, try using CleanMyDrive 2. With its help, you can drag-and-drop files directly to any drive, clean hidden junk from external drives, and check disk stats. All the drives will be at hand in the menu bar, so you can get to see types of drives you have and manage them easily.

    How to FORMAT external Hard drive to FAT32 w/ Mac. EASY!