After trying install the new version (DietPi_OPiZeroH2-ARMv7-Stretch) of the image it does not work.
Nothing happens when switch on the board. Re-installed the old version (DietPi_OrangePiZero-armv7-(Jessie)) and everithing OK.
Anyone with the same problem?
Board: Orange Pi Zero H2 256mb
What? Nobody? 
Did you set the dietpi.txt for auto install?
I found that on my OPIZero I had to go further down and set the “headless” option as well
I´m using the 6.1 image in a OPi0 H2 512Mb without any big issues (one smaller problem with the sound card, already solved!)
SDCard flashed with Etcher (Mac).
SSH via LAN. It takes a little while to start, a minute or so…