Format image usb drive

Question

I have used and created an image drive to install Ubuntu server 18.04.

I have tried to erase and reformat using Mac utility but It will not do it.

Can someone explain how to do this in a terminal or other software

Thanks

Possible duplicate of How to format a USB flash drive? – karel Aug 26 '18 at 08:47 — karel, Aug 26 '18 at 08:47
See this link, Postrequisites - restore the USB stick – sudodus Aug 26 '18 at 11:21 — sudodus, Aug 26 '18 at 11:21

score 0 · Answer 1 · answered Aug 27 '18 at 10:41

I tried other ask ubuntu answers but they did not work for me. I found an answer at this link which worked for me.

at the terminal type

Diskutil List

identify your disk to be erased then type:

diskutil eraseDisk free EMPTY /dev/disk4

Then format the disk

diskutil eraseDisk ExFAT USB64 /dev/disk4 where USB4 is the disk name and EXFAT the format

1 Answers1