After you have downloaded a platform-specific QWF reference image, you must transfer it to your target platform.
To transfer the QWF reference image to your target, copy it onto the appropriate removable storage medium. The reference images are approximately 500 MB when zipped, and expand to 4 GB when extracted.
The minimum size required for an SD card is 4GB.
We recommend UHS-I cards for better read/write performance. These cards can be identified by a "U" with a number "1" inside it, as shown below:
To transfer a QWF reference image to an SD card, follow the instructions below for your host OS.
When you have finished transferring the reference image to the removable media, follow the platform-specific startup instructions in "Booting a reference image."
On a Linux system, use this command-line instruction to copy a reference image to removable storage:
sudo dd bs=1048576 if=your_image of=/dev/sdX
This command causes the dd utility to write data to the disk in 1 MB chunks. This command assumes that sdX is the device entry for the SD card (or other removable storage), where X is a letter index for the drive name in the OS (e.g., a, b).
On a Windows system, to copy a reference image to removable storage: