Scott Murphy

apt-get upgrade will upgrade all packages that can be upgraded without having to remove packages that are already installed or install new ones that are not already installed (as any version).

apt-get dist-upgrade will upgrade all packages and "intelligently" install newand/or remove existing ones necessary to perform upgrade.

Direct from man apt-get:

upgrade
upgrade is used to install the newest versions of all packages
currently installed on the system from the sources enumerated in

My USB hard drives stopped automatically mounting on my XBMC Live installation. Fortunately, I found a fix as specified here:

http://forum.xbmc.org/showthread.php?t=71492

Apparently this was due to me installing Firefox which requires some Gnome components. Those Gnome apparently components caused the problem.

I ran:
sudo apt-get autoremove --purge firefox

rebooted, and the problem was fixed.

Note:

So I just looked at a fresh Ubuntu 9 install on Rackspace and wanted to quickly enable http traffic. Being a CentOs / Redhat admin for 5 years, I went to type setup and nothing happened.

Setup is a nice UI program for configuring your Linux OS. I prefer this for simple tasks, rather than having to remember which files I need to edit and how to edit them.

Searching the net,
( http://www.techotopia.com/index.php/Basic_Ubuntu_Linux_Firewall_Configur... )
I found that lokkit is a sub-program to the setup program I am familiar with so I installed it: