Mac 將 iso 轉 usb、dmg 轉 usb、iso 轉 dmg

ISO to USB

列出外部磁碟

diskutil list external

$ diskutil list external
/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *62.0 GB    disk2
   1:               Windows_NTFS Ubuntu1804              4.0 GB     disk2s1
   2:               Windows_NTFS Ubuntu1604              4.0 GB     disk2s2
   3:               Windows_NTFS Ubuntu1404              4.0 GB     disk2s3
   4:               Windows_NTFS Data                    50.0 GB    disk2s5

unmount 磁碟

diskutil unmount disk2s1

$ diskutil unmount disk2s1
Volume Ubuntu1804 on disk2s1 unmounted

將 ISO 寫入磁碟

sudo dd if=[imagePath] of=/dev/r[diskID] bs=1m

• if：Input from，並非 Standard Input
• of：Output from

sudo dd if=~/Desktop/ubuntu-18.04.2-desktop-amd64.iso of=/dev/rdisk2s1 bs=1m

退出磁碟

diskutil eject disk2

ISO to DMG

hdiutil convert -format UDRW -o /path/to/image.dmg /path/to/image.iso

DMG to USB

跟 ISO to USB 同一條指令

sudo dd if=/path/to/image.dmg of=/dev/rdiskN