- download the iso
- plug in usb
- find out the device name:
diskutil ls. It'll be something likedisk2. subsequent devices e.g.disk2s1are partitions of that device, one of which shows up in/Volumesas an external drive. - unmount the partition you see in
/Volumes(eject ordiskutil unmount <path to partition>). the path to the partition will be like/dev/disk2s1. - write the iso image to the usb:
sudo dd if=<path to iso image> of=<path to device> bs=1048576. the path to the device will be like/dev/disk2.
reference: https://community.linuxmint.com/tutorial/view/744