Impossible to format USB

Hello! I have a BIG problem with my USB. I formatted my USB with a tool called 'create basic OS Installer '. It is supported by the creators of the primary operating system and I have had no problems to start with him. However, I would like to make an another bootable USB key with a newer version, but guess what? I can't format it!

I tried to format it with disk utility, and he brought the following messages:

"Clear process failed. Press OK to continue.

If you open the details, he said:

Invalid name failed

Tried to format with Terminal and brings the following messages:

sudo diskutil reformat/dev/disk2

CAUTION: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Recheck your

If you type when you use sudo. Type "man sudo" for more information.

To continue, enter your password, or type Ctrl-C to abort.

Password:

The current system does not have a trainer for the filesystem on disk2

Tried to repair:

diskutil repairDisk/dev/disk2

Model of non-existent partition map, unknown or damaged

If you are sure that this disc contains a map of APM, MBR or GPT partition (damaged),

You can hereby trying to fix it enough to be recognized as a map; another

'diskutil repairDisk/dev/disk2' may be needed for additional repairs

Move forward? y (y/N)

Card error repair: MediaKit reported no such partition scheme known (-5307)

Anyone can find a way to help me?

Try it

sudo diskutil unmountdisk force disk2

sudo dd if = \u003d/dev/zero of / dev/disk2 bs = 1024 count = 1024

Tags: Notebooks

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