On Wednesday 10 January 2018 01.25:49 deloptes wrote:
> Thierry de Coulon wrote:
> > I changed it
> > to /opt/trinity/bin/tdm
>
> how did you change it?

I directly edited /etc/X11/default-display-manager.

That was the error (but I think it worked in pre-systemd time?)

> does it boot normally if you pass init=/lib/sysvinit/init to the command
> line (if you have sysvinit installed)?
no

> can you boot to rescue or single user ?
no. you're stuck at the error message (I did not try to log in another tty 
because I have a secondary system so I used that to change the file back)


This morning I googled systemd change DM and got the answer: at least with 
systemd you must use dpkg-reconfigure tdm-trinity.

Thanks,

Thierry