Slide 4.3 SysVinit Runlevels
On said slide runlevels are introduced according to SysVinit which apparently is still used even if only under the hood.
I use Ubuntu 14.04 up to date.
I tried the suggested command
sudo telinit 5
and nothing happens. It seems that runlevels 2 - 5 do not correspond to the descriptions of the slide (when you click the Info button). My questions are:
1. Where can I find descriptions of Ubuntu's runlevels.
2. If Upstart does not use runlevels so why do they still exist? What is their effect?