I prepared 3 new test images, two for Orange Pi One/PC/2 and one for the Plus (MD5 sum and image name): http://kaiser-edv.de/tmp/4U4tkD/
EDIT: Images are available from now on at the usual location: http://www.armbian.com/download/
Don't try to run those for One/PC/2 on the Plus and vice versa!
We tried to provide a single OS image that detects on which board it's running at first boot but due to the horrible code quality of this 3.4.x kernel we got from Allwinner it seems not possible (if you're interested in details, follow this discussion TL;DR: It's not working, without further wasting more time we now plan to provide one OS image for One/PC/2 and later the Lite and a separate for the Plus)
Serial console is disabled there (mostly by accident and also to prevent One users from crying, they'll see prior to the first reboot countless 'ARISC ERROR' messages that will magically disappear after the first reboot). Please be patient and don't touch the system for the first 3 or even up to 5 minutes since the first boot takes longer and then an automated reboot will happen.
If you want to have (extensive) output on the serial console, then please edit /boot/boot.cmd so that the kernel cmd_line arguments read:
setenv bootargs "console=ttyS0,115200 root=/dev/mmcblk0p1 rootwait rootfstype=ext4 cgroup-enable=memory swapaccount=1 sunxi_ve_mem_reserve=0 sunxi_g2d_mem_reserve=0 sunxi_no_mali_mem_reserve sunxi_fb_mem_reserve=16 hdmi.audio=EDID:0 panic=10 consoleblank=0 enforcing=0 loglevel=8"
Afterwards it's necessary to run
mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
In case you want to try out a kernel with CONFIG_DEBUG_BUGVERBOSE=y please download and extract kernel_5.03_h3_unified_verbose_debug.tgz and use dpkg -i *sun8i*.deb afterwards.
In case you want to get an idea what's going on with your board, think about installing RPi-Monitor. See a few posts/pages before or have a look at install-rpi-monitor-for-h3.sh.
And most importantly please keep in mind that these are test versions only. Not intended for any sort of productive use, they're just there to get feedback from you to help us improve things. Igor is out of lab this week, me then too. We just want to collect some feedback in the meantime and will release new images later that will be more user friendly.
In case you want to change the display resolution (720p is currently default) you'll have to tweak fex settings.
You might use the h3disp script skeleton for this purpose and adjust lines 63/64, execute it (set DVIUsed=FALSE when you use no HDMI-to-DVI converter and HDMIMode according to the following table) and reboot. In the meantime I improved h3disp -- see next post below.
Please be prepared that none of the images is ready yet, we're still busy nailing down really basic problems and had no time/motivation to tune GUI/desktop stuff. This will take still some time.