William Morder via trinity-users wrote:
Please don't take this as an endorsement, since I
have not actually
installed it yet myself. I am still researching how to root my phone
properly.
https://replicant.us/
I don't know what models of smartphone are supported. I was hoping to find
a cheap used phone for purposes of experimentation, before I mess up a
working system. I hear that some newer phones are supposed to have a
GNU/Linux OS already installed, but have waited a couple years for the big
announcement, and still nothing.
The problems are the small market share and the proprietary hardware. There
were so many that failed on the way ... and I am amazed how people think
they can deliver something better and working. I think it is sad that
people do not unite behind one single solution and make it working as
competitor to the big. Instead the Linux/open source community keeps
splitting into smaller and smaller parts, which makes them weaker and
weaker - the software development gets slower and slower etc.
I personally am lucky to have TDE and Sailfish OS.
Regarding opening the boot loader - this is what the AOSP from Sony is. You
enter the IMEI and get a code with which you can open the bootloader.
You can always buy used one and play around ;-)
regards