Is there any way to force format a USB?

I've tried to make a bootable USB with balenaEtcher when an error occurred, and the flashing failed. After that, my USB became unwritable. My attempts to erase this USB led to the error 'Unable to begin erase operation: A writable disk is required (-69772)'. Is there any way to force format this USB?


[Re-Titled by Moderator]

MacBook Pro 16″, macOS 13.6

Posted on Mar 11, 2024 12:30 PM

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1 reply

Mar 11, 2024 2:31 PM in response to alexkandr

The only use I would have for BalenaEtcher would be if I was making a specific Linux Live USB stick. You would not use it for making a bootable macOS USB stick as that is addressed: Create a bootable installer - Apple Support


You could start over and make the USB stick FAT32 in this manner. First and in the Terminal, run this command and determine what mounted drive is associated with your USB stick. For this example, lets say it is /dev/disk3 and you want the name of the USB stick to be Ubuntu_Bootable


df
diskutil eraseDisk "ms-dos fat32" Ubuntu_Bootable MBRFormat /dev/disk3


when it is done, you will see Finished erase on disk3 (or whatever your disk name is).


Now, ensure you have the current version of BalenaEtcher installed and try that USB stick again.


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Is there any way to force format a USB?

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