I am trying to change some gconf settings in Ubuntu 12.10. I would like to change the lightdm greeter background.
I have discovered that while logged in to unity as a user while running X server, I am able to do this with:
sudo xhost +SI:localuser:lightdm gsettings set com.canonical.unity-greeter background "'/usr/share/backgrounds/micros-background.png'"
The problem is that this requires me to login as a user under X. So that entire window manager needs to be running. But I want to use chroot to change these settings without any X server running. I just want to mount the partitions and change gsettings without having the full window manager running.
Is there a way to directly change gsettings without being logged into X and Unity?
Or alternatively... is there a way to bring up the X server and Unity in the background so that I can make the changes without having a full windowed display come up on my monitor?