Mac OS X Host
This section show how to prepare a bootable USB stick. ***
- Step 1: Prepare USB stick
- Step 2: Find USB stick device name
- Step 3: Recall Download Location
- Step 4: Go to directory with USB Stick Install Image folder using Terminal
- Step 5: Install image onto USB stick
Step 1: Prepare MicroSD card
- Ensure data from USB stick is backed up
- Everything on USB stick will be lost by the end of this procedure.
Step 2: Find USB stick device name
- On the host computer, open “Terminal” application (Press Command+Space bar and type “Terminal”)
- Remove USB stick from host computer and run the following command:
- Note all recognized disk names (example: /dev/disk1)
- Insert USB stick and run the following command (again):
- Note the newly recognized disk. This will be your USB stick.
- Remember your USB stick device name, it will be needed in Step 5.
Step 3: Recall Download Location
- Locate USB stick install file from Downloads page.
- This file will be needed for the next step.
Step 4: Go to directory with USB Stick Install Image folder using Terminal
- On the host computer, open the “Terminal” application (Press Command+Space bar and type “Terminal”)
cdto the directory containing your install image**
cd <directory> #Example: #<directory> = /Users/YourUserName/Downloads #For this example we assume the "USB Stick Install Image" is in the Downloads folder. cd /Users/YourUserName/Downloads
Step 5: Install image onto USB stick
- USB stick inserted into host computer
- Recall USB stick device name from Step 2
- From within the installer folder, using the Terminal execute the following commands:
$ sudo dd if=YourInstallerImage.iso of=/dev/XXX bs=4m $ sudo sync
if=YourInstallerImage.iso: should match the name of the image that was downloaded.
of=/dev/XXX: XXX should match the name of the USB stick device name from Step 2. Be sure to use the device name without the partition name. For example, ‘of=/dev/disk1’
- If you get an error message “Resource Busy”, you will need to unmount the SD card without removing it from the host computer.
- Option 1:
- In the Applications folder, find and click on the Utilities folder.
- Click on the Disk Utility program to run it
- Select the device that represents the USB stick
- Click on
unmountand leave the USB stick in the computer
- Retry the ‘$ sudo dd if=YourInstallerImage.iso of=/dev/XXX bs=4m’
- Option 2:
- In the terminal window, enter this command:
$ sudo umount /dev/<device name>
- This command will take some time to execute. Be patient and avoid tampering with the terminal until process has ended.
- Once SD card is done flashing, remove from host computer and set aside.
Congratulations! Your USB stick is ready. Switch back to the Installation Guide to boot into the installer!