RancherOS cannot copy cloud-config.yml during ros install

Hello, I’m trying to install RancherOS to disk on my Lenovo TD350. I created the cloud-config file correctly and copied it into the root directory of the usb drive. I use command 'sudo ros install -c cloud-config.yml -d /dev/sda (or sdb) and I still get the error. Please help!

What error are you getting? Are you sure whereever you are running the command has access to the cloud-config file?

Are you sure that you have issued the command from “the root directory of the usb drive”, if not, you need to provide full path to the file.