I know that mainline kernel now is 4.14, and now is experimental for A64..  I have tried build my own armbian form Orangepi Win Plus.  Kernel 4.14 does not  recognize audio and LAN. Question. Is it possible to build Armbian 5.51 with old kernel 3.10 for that device ( Ubuntu 18.04). Old kernel works much better with devices A64 cpu. I know that is old......but mayby not so experimental..... 

easy ... just use the armbian build process to generate a new image and select "stable"

 

but i did find that in 5.5x that the wifi wouldn't automatically connect and doing an ifdown/ifup would work 50% of the time.

Kernel 3.10 is too old for Debian Stretch or Ubuntu Bionic. It might work, but not without many troubles ... that's why we don't support it.

./compile.sh BOARD=orangepiwin BRANCH=stable KERNEL_ONLY=no RELEASE=bionic

output .:

[ error ] ERROR in function source [ main.sh:191 ]
[ error ] Kernel branch not defined for this board [ stable ]
[ o.k. ] Process terminated

19 hours ago, constantius said:

Is it possible to build Armbian 5.51 with old kernel 3.10 for that device ( Ubuntu 18.04)

 

Nope. Care to read and understand what Igor explained? Even if you replace 'stable' with the correct word 'default' it won't work.

I know ayufan coming to  release 3.10.x Ubuntu 18.04 for pine64 / sopine / pine-lts , when released it pine user can choose use armbian or ayufan  , this very fair.