I have a problem with apt.
When I try to update or upgrade Ubuntu, I receive an error telling me that I have dependency problems, and I can't go on. I've tried to solve the problem with apt-get install -f, aptitude install -f, and using Synaptic, but I couldn't solve it.
When I try to run Synaptic, it tells me that I have broken packages, but if I try to delete them, it tells me that it will remove a lot of essential packages like mount and hostname. I think that it would be the end of my Ubuntu if I proceed.