Strano fenomeno!

[ginoza]

Ho installato su un nuovo hardisck Kubuntu 10.04.1 LTS ed è andato tutto bene. Ho fatto regolarmente l'aggiornamento (più di 140 files!..) con apt-get e dist-upgrade. In un secondo tempo avendo la necessità di installare java6 non mi permette più di fare l'aggiornamento con apt-get update.
Posto subito cosa mi viene detto:
gino@gino-desktop:~$ sudo apt-get update
E: La riga 54 nel file /etc/apt/sources.list non è corretta (dist parse)
gino@gino-desktop:~$
E qui sotto posto il mio sources.list dove si può vedere il tutto e questa linea 54 non corretta (ma quale è questa linea?..), come dice. Io non capisco dove sia l'errore. Precedentemente l'aggiornamento me l'ha fatto senza discussioni!
sources.list:
# deb cdrom:[Kubuntu 10.04.1 LTS _Lucid Lynx_ - Release i386 (20100816.2)]/ lucid main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://it.archive.ubuntu.com/ubuntu/ lucid main restricted
deb-src http://it.archive.ubuntu.com/ubuntu/ lucid main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://it.archive.ubuntu.com/ubuntu/ lucid-updates main restricted
deb-src http://it.archive.ubuntu.com/ubuntu/ lucid-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://it.archive.ubuntu.com/ubuntu/ lucid universe
deb-src http://it.archive.ubuntu.com/ubuntu/ lucid universe
deb http://it.archive.ubuntu.com/ubuntu/ lucid-updates universe
deb-src http://it.archive.ubuntu.com/ubuntu/ lucid-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://it.archive.ubuntu.com/ubuntu/ lucid multiverse
deb-src http://it.archive.ubuntu.com/ubuntu/ lucid multiverse
deb http://it.archive.ubuntu.com/ubuntu/ lucid-updates multiverse
deb-src http://it.archive.ubuntu.com/ubuntu/ lucid-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://it.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
deb-src http://it.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu lucid partner
# deb-src http://archive.canonical.com/ubuntu lucid partner

deb http://security.ubuntu.com/ubuntu lucid-security main restricted
deb-src http://security.ubuntu.com/ubuntu lucid-security main restricted
deb http://security.ubuntu.com/ubuntu lucid-security universe
deb-src http://security.ubuntu.com/ubuntu lucid-security universe
deb http://security.ubuntu.com/ubuntu lucid-security multiverse
deb-src http://security.ubuntu.com/ubuntu lucid-security multiverse
deb http://archive.canonical.com/lucid partner

Come risolvere?
Grazie.
Gino.

[ginoza]

Mi rispondo da solo, scusate. Non avevo messo lo spazio tra ...canonical.com/ e lucid partner: avevo fatto tutto attaccato!
Scusate.
Gino