Manual package selection / aptitude

[nockdown]

I want to exclude useless for me software during installation Kubuntu. 8)

I boot up my system with kubuntu-11.10-dvd-amd64 and install Kubuntu in text mode. In 'Software selection' menu I choose 'Kubuntu desktop' and 'Manual package selection'. Then aptitude starts up and I choose submenu: Tasks – Unrecognized task – kubuntu-desktop
and remove "-" following packages:
akregator
amarok
amarok-common
amarok-utils
dragonplayer
kamera
kaddressbook
kde-config-touchpad
kdegames-card-data
kdepim-groupware (and by dependences kdepim-kresources, kdepim-wizards)
kmail
knotes
kontact
kopete
kopete-message-indicator
korganizer
kpat
kppp
kubuntu-firefox-installer
kvkbd
plasma-widget-facebook
quassel
quassel-data
and install "+" following package:
firefox-locale-en

There isn't any error in dependences, and I start up the installation "g" "g".

Result is 'Processing was halted because there were too many error'

I checked my disk for defects, it's OK, 'no errors found'.

Questions: What do I do wrong? Why do these errors occur?

[Snowhog]

Agreed. You are doing an installation and opting to de-select packages you don't want, but that likely contain dependent packages or at least links to such, that are needed for the installation to succeed.

[Ole Juul]

I wonder if it wouldn't be better to work the other way around. First install the base system and then add the packages/programs you want. I haven't done this with the latest versions, but I have a Ubuntu 10.04.3 system here which has been working fine since 10.04 came out. Start with Ubuntu Server then "apt-get kubuntu-desktop" or other desktop of choice as well as the other programs you want.