How to Format a Bootable USB Drive

[Eli]

Here is the tested approach to format a bootable usb disk/stick:

1. Launch the Disks application - Click Show Applications and search Disks application
2. Select the disk or drive you want to format
3. Press CTRL+F
4. Click format.

After formatting, the disk or drive would be unallocated, therefore you'll have to create a partition by using the plus button on the screen. Then insert the name you'll like to use as the drive or disk name then click on create.

Source: https://askubuntu.com/questions/769079/ ... tion-stick