@mariogrip Thanks for your reply. I hope you can find other Devs to improve porting project. I'm a Oneplus TWO owner and I hope to see Ubuntu Touch on it..

so this tutorial use image from twrp backup ... :o(

That's brill. Just a quick query, but what forum content management system are you using? Also the wiki has plenty of log-ins from last week, but none of them are able to fully register. Any clue of when that's gonna get some gusto ? Chow Ciao.

Did you try to boot with the debug option removed from the cmdline? I had the same symptom as you (systemd-udevd prints hundreds of messages per second until the phone reboots). For some reason this only happens with the debug option set. please compare this (with 'debug' and bootloop): http://paste.ubuntu.com/14667442/ with this (no 'debug' and no bootloop): http://paste.ubuntu.com/14667455/