In order to clone / copy a Bootable Flash Drive to another Drive requires modifying the Master Boot Record of the Target Drive. Here’s how.
- Plug the Target Drive into a USB port and determine the Target Drive’s location / device id by opening a Terminal Session and keying in:
fdisk -l
The resulting display should have text like “/dev/sdb1” associated with the Target Drive.
- Ensure that the Target Drive is formatted as FAT32 – use GParted to do this.
- Make a “/boot/syslinux” directory on the Target Drive.
- Make the Target Drive bootable by issuing the following command:
syslinux --directory /boot/syslinux --install /dev/sdb1
Modify the “/dev/sdb1” text to be the actual location / device id of the Target Drive.
- Now copy the contents of the Source Drive to the Target Drive.