if livarp is the only OS on your system, you don't really need the 5 seconds waiting for booting. to skip grub, you have to edit the file /etc/default/grub:
sudo vim /etc/default/grub
then replace
GRUB_TIMEOUT=5
by
GRUB_TIMEOUT=0
save and close with ':wq' in vim then actualise GRUB with the command:
sudo update-grub
so, on next boot, grub screen will not be displayed and livarp will be loaded immediatlely.
bum is a graphical software allowing you to configure deamons to launch on startup without a terminal.
to install it:
# apt-get install bum
then launch it as root:
# bum
project comes from Fedora, package name on Debian is 'readahead-fedora'. it's main goal is to organize boot sequence to speed startup. to install it:
# apt-get install readahead-fedora
nothing more to do, the deamon will be launched on next boot.