i've been trying to install persistent Ubuntu 20.04 on an 16Gb USB 3.1 drive using a non persistent live usb drive with ubuntu 20.04. I've been following this tutorial from how to geek. Unfortunally somewhere along the process I get this error from mkusb
/dev/sdb3' could not be mounted.
Poweroff and cold boot for dus-persistent to make persistent live drives again!"
Can someone help me out with this error or tell me a better way to install a persistent ubuntu on a usb drive.