Hello @Flohack , thanks for the hard work. I was pleased to see that there are some people out there working on porting ubuntu to S3.

I do own an S3 i9300 1GB RAM. I checked and sadly is not the same hardware (CPU/GPU) as S3 Neo so the compiled kernel link on the guide does not work.

Do you know if there is any recent work around i9300 device? If so could you please point me in the right direction? Thanks in advance.
So far the best info I found is this:
https://forum.xda-developers.com/galaxy-s3/orig-development/discontinued-ubuntu-touch-13-10-builds-t2315397/page23
https://wiki.ubuntu.com/Touch/Devices/i9300
But half of the links do not work

I do have some Linux and programming skills and I am willing to collaborate doing a Ubuntu port for i9300. I will need some guidance in the beginning though.

BTW I added some info that might help others on the port installing instructions: https://pad.ubports.com/p/samsung-s3neo-alphatesting
I hope is ok

Regards