# mkfs.erofs > Create an EROFS filesystem in an image. > More information: . - Create an EROFS filesystem based on the root directory: `mkfs.erofs image.erofs root/` - Create an EROFS image with a specific UUID: `mkfs.erofs -U {{UUID}} image.erofs root/` - Create a compressed EROFS image: `mkfs.erofs -zlz4hc image.erofs root/` - Create an EROFS image where all files are owned by root: `mkfs.erofs --all-root image.erofs root/`