hdiutil convert -format UDRW -o [.DMG file you will make] [.ISO file you have] 1. Where is the directory that is in ISO file, will be in DMG file/Users/baek/Documents/CentOS7/ 2. What is iso file's name?CentOS-7-x86_64-Minimal-1611.iso 3. What do you want to name new dmg file's name?CentOS-7_dmg 4. Open Terminal and Go hdiutil! hdiutil convert -format UDRW -o /Users/baek/Documents/CentOS7/CentOS..