Create a bootable ubuntu usb stick on MacOS

Createing a bootable ubuntu usb by using command prompt on MacOS

ta-ching chen

1 minute read

First things first

Convert iso to dmg format

$ hdiutil convert -format UDRW -o /path/to/<target-image> /path/to/<source-image>

Choose the target usb

$ diskutil list

/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *251.0 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage Macintosh HD            250.1 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           +249.8 GB   disk1
                                 Logical Volume on disk0s2
                                 76F1BFBE-3D0C-4C5C-9C4A-02FD5A1CA5D9
                                 Unencrypted
/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:                  Apple_HFS MacintoshHD             499.8 GB   disk2s2

  • find out your target usb stick
# /dev/disk2 is only for tutorial! Please choose your own.
$ diskutil unmountDisk /dev/disk2

Start to create the bootable usb

  • always backup important data in usb before you start
  • use rdisk instead of disk here. ex. rdisk2
$ sudo dd if=/path/to/<target-image-just-convert>.dmg of=/dev/rdisk2 bs=1m
$ diskutil eject /dev/disk2
  •   Category
  • Mac
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