hi everyone:
here is my problem:
i have installed openhab2 and everything worked well until we had to chose a package .
my coworker chose simple package not knowing it doesn’t include 1.x bindings like mqtt that we badly NEED.
how do we fix that. I want the expert package
PS; not familiar with linux commands so please be precise.
thanks to everyone reading this. "
modify /etc/openhab2/services/addons.cfg and set:
package = expert
how do i do that ? using putty ?
yes.
login into your Linux system running OH2 and edit that file.
sudo apt-get install vim
sudo vim /etc/openhab2/services/addons.cfg
Press “Insert” button on your keyboard to modify
Press: :wq to write the file and quit the editor (vim)
how do i do that ? using putty? i downloaded openhabian on the raspberry.
Yes, use putty to login to your openhabian system 
you can use any text editor you like to modify that file.
vim is the most hated one, so i recommend this 
did this sudo vim /etc/openhab2/services/addons.cfg
now i have a purple display
what do i write ? and how ??
sorry if i’m stupid
within vim:
press “Insert” (Ins button on your keyboard)
press Enter
type the following: package = expert
edit: Press “Escape” (Esc button on your keyboard)
press :wq
then restart OH2 service with systemctl restart openhab2
more on editing files with vim on: https://www.linux.com/learn/vim-101-beginners-guide-vim
what’s wq ? i put package = expert
oops… forgot to tell you to press Escape button after inserting that line
after escape, type :wq on your keyboard to exit vim (with the : in front)
when i try to write system clt it says authentification failed
oops again… (you are logged in as openhabian user)
sudo su
systemctl restart openhab2
or
sudo systemctl restart openhab2
also when i wrote :wq it says “readonly” option selected
therefore i couldn’t write systemctl so i open a new terminal and when i did it says authentification failed
vim gives you this response? strange…
close vim (:q!) and try again:
sudo su
vim /etc/openhab2/services/addons.cfg
can’t reply anymore: so her it is
i wrote the sudo vim… again it there is nomore error : I see package = expert but when i log in openhabianpi:8080, i still don’t see mqtt; Seems like i still have package simple
You are running openHABian and you haven’t set anything up yet. I strongly recommend just starting over from scratch and selecting the proper package the next time. It will probably be faster.