http://www.cnblogs.com/diligenceday/p/6103530.html
41 hdiutil --help
142 hdiutil convert ubuntukylin-16.10-desktop-amd64.iso -format UDRW -o ubuntu.dmg
143 diskutil list
144 diskutil list
145 diskutil unmountDisk /dev/disk2
146 diskutil list
147 sudo dd if=ubuntu.dmg of=/dev/rdisk2 bs=2m
148 dd --help
149 diskutil eject /dev/disk2
实测安装ubuntu16成功
Mac苹果系统 多系统启动：The rEFInd Boot Manager
http://www.cnblogs.com/diligenceday/p/6932868.html