Cita:
Iniciado por arthpix 
Por que no posteas como esta tu sources.list? Tal vez encontremos algún error.
Bueno aquí va, solo que para no hacerla tan larga, le quité todo los textos que tienen # , salvo las que hacen referencias a los repositorios de kubuntu .
# Automatically generated sources.list
#
http://www.ubuntu-nl.org/source-o-matic/
deb
http://bo.archive.ubuntu.com/ubuntu edgy main
deb-src
http://bo.archive.ubuntu.com/ubuntu edgy main multiverse universe #Added by software-properties
deb
http://bo.archive.ubuntu.com/ubuntu edgy-updates main
deb-src
http://bo.archive.ubuntu.com/ubuntu edgy-updates main multiverse universe #Added by software-properties
deb
http://security.ubuntu.com/ubuntu edgy-security main
deb-src
http://security.ubuntu.com/ubuntu edgy-security main multiverse universe #Added by software-properties
deb
http://bo.archive.ubuntu.com/ubuntu edgy universe multiverse
deb
http://bo.archive.ubuntu.com/ubuntu edgy-updates universe multiverse
deb
http://security.ubuntu.com/ubuntu edgy-security universe multiverse
deb
http://mirror2.ubuntulinux.nl/ edgy-seveas all
deb
http://bo.archive.ubuntu.com/ubuntu edgy-backports main universe multiverse
deb-src
http://bo.archive.ubuntu.com/ubuntu edgy-backports main universe multiverse #Added by software-properties
# Kubuntu.org bleeding edge KDE
# GPG key: DD4D5088
deb
http://kubuntu.org/packages/kde-latest edgy main
# Kubuntu.org bleeding edge amaroK
# GPG key: DD4D5088
deb
http://kubuntu.org/packages/amarok-latest edgy main
deb
http://wine.budgetdedicated.com/apt edgy main
deb
http://medibuntu.sos-sts.com/repo/ edgy free non-free
deb
http://archive.canonical.com edgy-commercial main
deb
http://www.getautomatix.com/apt edgy main
deb
http://archive.canonical.com/ubuntu edgy-commercial main
deb
http://archive.ubuntu.com/ubuntu edgy-security main universe multiverse
deb
http://dl.google.com/linux/deb/ stable non-free
deb
http://archive.ubuntu.com/ubuntu/ edgy-proposed main multiverse universe
deb-src
http://archive.ubuntu.com/ubuntu/ edgy-proposed main multiverse universe