there is no file for in ubports
if you try install
you will read
device op2 not found on server http://system-image.ubports.com ubuntu-touch/stable

T.

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

yeaaaah google is your friend (sometime)
somethings i will read before...
How to Flash Ubuntu Touch on OPO using TWRP

https://forums.oneplus.net/threads/how-to-flash-ubuntu-touch-on-opo-using-twrp.431640/

you recommend to use ubuntu-device-flash
but i use to flash with TWRP with great backup function

is it compatible still have TWRP after flash ?
and if not how to put ubuntu touch with TWRP ?

Regards

i don't know, i just click on button "Donante3 in OnePlusTwo page and follow instructions ..
this page : https://devices.ubports.com/#/op2

maybe i have to write something more ?
regards

This s paypal information about
so i got one plus two to try some dev
regards
Taux de change
23,48 EUR = 25,00 USD
1 euro = 1,07 dollar des États-Unis

Adresse postale
XXXXXXXX
France

Numéro de transaction
1AXXXXXX46936

Envoyé à
MarXXX GripXXX
mario.grip@gmail.com

Détails du don
Envoyé à Marius Gripxxx
25,00 USD
Frais
0,00 USD
Montant
25,00 USD

so am i ! i have make donations of 25$ for OP2