Please note, this is the active development branch. Its potentially unstable, unsupported and should not be used by end users.
- Write the DietPi image to SD card.
- Open the file on the 1st partition
/boot/dietpi.txt
- Change
DEV_GITBRANCH=master
toDEV_GITBRANCH=testing
(located at the bottom of file) - Save the file, eject media and power on.