When you got the disk number, run the following command: diskutil unmountDisk /dev/diskN In my case, the device number is 2 (for a USB of size 8 GB): /dev/disk2 To avoid confusion, I would suggest that you should have just one USB drive plugged in. You should be able to identify the USB disk by its size. It will list all the ‘disks’ currently available in the system. Run the following command in terminal: diskutil list The next thing is to get the device number for the USB drive. Step 4: Get the device number for USB drive Also, the converted file may have an additional. It is fine as the extension is symbolic and it is the file type that matters not the file name extension. You might notice that I did not put a IMG extension to the newly converted file. So for me, the command is like this: hdiutil convert -format UDRW -o ~/Downloads/ubuntu-14.10-desktop-amd64 ~/Downloads/ Normally the downloaded file should be in ~/Downloads directory.
Open a terminal, either from Launchpad or from the Spotlight, and then use the following command to convert the ISO to IMG format: hdiutil convert -format UDRW -o ~/Path-to-IMG-file ~/Path-to-ISO-file This can be easily done using hdiutil command tool. The file you downloaded is in ISO format but we need it to be in IMG format. Ubuntu 14.04 is the latest LTS version, and this is what I would recommend to you.
Since you are using a Macbook Air, I suggest you to download the 64 Bit version of whichever version you want. Jump to Ubuntu website to download your favorite Ubuntu desktop OS. Of course, you need to download ISO image of Ubuntu desktop. Of course hit the Partition button to format the USB drive. It will give you a warning message about formatting the USB drive. When all is set to go, just hit the Apply button. There is one last thing to do before we go with formatting the USB. Click the Options button in the right side pane and make sure that the partition scheme is GUID Partition Table.
At start up when the Apple tune starts up, press and hold option (or alt) key. Step 4: Booting from the live Ubuntu USB on macOS Once the purpose of Linux USB is over, you can use Gparted tool in macOS or Linux to format this USB back to normal.Īs long as Etcher gives you a success message about flash completion, no need to worry about it. It’s just that the USB is now in a format your macOS does not like and hence it complains. When the process completes, you should see a message that the “ disk you inserted was not readable by this computer“. It will take a few minutes at the most to complete the process. If it does not, click on the ‘Target’ button and select the correct USB device.īrowse to the downloaded Linux ISO file and hit the flash button. It should automatically recognize the plugged in USB (unless there are more than one). Make sure that there is no important data on it because it will be formatted.
Installing Etcher on macOS Step 3: Using Etcher to create bootable Linux USB Drag the Etcher icon to the Applications icon. Double click on the downloaded file and it will open the installer.
As a macOS user you probably already know how to install DMG file.