If you want to transfer files to MacOS you can format the 'usbdata' partition to FAT32. mkusb is a linux tool and cannot be used in MacOS. Lsblk -o MODEL,NAME,FSTYPE,LABEL,MOUNTPOINT,SIZE '/dev/sdc' Number Start End Size File system Name Flagsģ 2097kB 258MB 256MB fat32 primary boot, espġ 42,0GB 61,5GB 19,5GB ntfs primary msftdata Sector size (logical/physical): 512B/512B This partition can also be read and written by Windows, so it can be used to exchange data with computers running Windows. one partition with the label 'usbdata' and an NTFS file system, where you can store various data files. one partition with the label 'casper-rw' and an ext4 file system, which is an overlay of the root file system in RAM, and installed programs as well as system tweaks and files saved in the standard directories (within the home directory) are saved there but this time you want a persistent live drive (). not to clone (which is the standard method to make an installer, a live drive in order to install Ubuntu)