make-bootable-usb in ubuntu

3 Easy Ways To Create Bootable USB Media From ISO In Ubuntu Linux

https://fossbytes.com/create-bootable-usb-media-from-iso-ubuntu/

gddrescue

First things first. You will need a working internet connection to download and install ddrescue. (In case you already have it installed, you can skip this step).

sudo apt update
sudo apt install gddrescue

Now, you will need to know the exact block device name (something like dev/sd..). To do this use the command fdisk. Enter the following command,

sudo fdisk -l

Once you enter the fdisk command, you can see all your devices connected. Here, you can see that the block device name for the USB is /dev/sdb1.

Importantly, verify that the block device name you chose is the correct one or you might end up with corrupt/destroyed data.

Once done, enter the command as follows:

ddrescue path/to/.iso /dev/sdx --force -D

Replace the x and path/to/.iso with your specific device block name and the path for the iso file.

When the process is finished, you can boot into your bootable Ubuntu USB stick.

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New Method

Tips: How to make Windows 10 install media on macOS High Sierra

https://appleinsider.com/articles/18/01/18/tips-how-to-make-windows-10-install-media-on-macos-high-sierra

STEP 1) diskutil list

usb founded in  /dev/disk2

STEP 2) diskutil eraseDisk ExFat "WINDOWS10" MBR disk2

STEP 3) cp -rp /Volumes/CCCOMA_X64FRE_EN-US_DV9/* /Volumes/WINDOWS10/