here's my problem : a friend set me a readonly bad wallpaper on ubuntu gnome. I want to change it. : )
I found the file i have to modify : /etc/dconf/db/local.d/locks/00_default-wallpaper
but when I open it with vim, I can see at the bottom : [readonly] and when I attempt to modify it, it writes : E212 : Can’t open file for writing
I'm logged as root and have already disabled the immutable flag with chattr.