andrea@andrea-laptop:~$ sudo gedit /etc/apt/sources.list
andrea@andrea-laptop:~$ sudo apt-get update
Hit
http://it.archive.ubuntu.com jaunty Release.gpg
Hit
http://security.ubuntu.com jaunty-security Release.gpg
Ign
http://security.ubuntu.com jaunty-security/main Translation-it
Ign
http://security.ubuntu.com jaunty-security/restricted Translation-it
Ign
http://security.ubuntu.com jaunty-security/universe Translation-it
Ign
http://security.ubuntu.com jaunty-security/multiverse Translation-it
Hit
http://security.ubuntu.com jaunty-security Release
Get:1
http://it.archive.ubuntu.com jaunty/main Translation-it [301kB]
Get:2
http://ppa.launchpad.net jaunty Release.gpg [307B]
Ign
http://ppa.launchpad.net jaunty/main Translation-it
Get:3
http://ppa.launchpad.net jaunty Release [74,6kB]
Hit
http://security.ubuntu.com jaunty-security/main Packages
Hit
http://security.ubuntu.com jaunty-security/restricted Packages
Hit
http://security.ubuntu.com jaunty-security/main Sources
Hit
http://security.ubuntu.com jaunty-security/restricted Sources
Hit
http://security.ubuntu.com jaunty-security/universe Packages
Hit
http://security.ubuntu.com jaunty-security/universe Sources
Hit
http://security.ubuntu.com jaunty-security/multiverse Packages
Hit
http://security.ubuntu.com jaunty-security/multiverse Sources
Ign
http://ppa.launchpad.net jaunty Release
Get:4
http://ppa.launchpad.net jaunty/main Packages [4742B]
Get:5
http://ppa.launchpad.net jaunty/main Sources [1829B]
Get:6
http://it.archive.ubuntu.com jaunty/restricted Translation-it [4737B]
Get:7
http://it.archive.ubuntu.com jaunty/universe Translation-it [458kB]
Get:8
http://it.archive.ubuntu.com jaunty/multiverse Translation-it [12,7kB]
Get:9
http://it.archive.ubuntu.com jaunty-updates Release.gpg [189B]
Ign
http://it.archive.ubuntu.com jaunty-updates/main Translation-it
Ign
http://it.archive.ubuntu.com jaunty-updates/restricted Translation-it
Ign
http://it.archive.ubuntu.com jaunty-updates/universe Translation-it
Ign
http://it.archive.ubuntu.com jaunty-updates/multiverse Translation-it
Get:10
http://it.archive.ubuntu.com jaunty-proposed Release.gpg [189B]
Ign
http://it.archive.ubuntu.com jaunty-proposed/restricted Translation-it
Ign
http://it.archive.ubuntu.com jaunty-proposed/main Translation-it
Ign
http://it.archive.ubuntu.com jaunty-proposed/multiverse Translation-it
Ign
http://it.archive.ubuntu.com jaunty-proposed/universe Translation-it
Hit
http://it.archive.ubuntu.com jaunty Release
Get:11
http://it.archive.ubuntu.com jaunty-updates Release [49,6kB]
Get:12
http://it.archive.ubuntu.com jaunty-proposed Release [49,6kB]
Hit
http://it.archive.ubuntu.com jaunty/main Packages
Hit
http://it.archive.ubuntu.com jaunty/restricted Packages
Hit
http://it.archive.ubuntu.com jaunty/main Sources
Hit
http://it.archive.ubuntu.com jaunty/restricted Sources
Hit
http://it.archive.ubuntu.com jaunty/universe Packages
Hit
http://it.archive.ubuntu.com jaunty/universe Sources
Hit
http://it.archive.ubuntu.com jaunty/multiverse Packages
Hit
http://it.archive.ubuntu.com jaunty/multiverse Sources
Get:13
http://it.archive.ubuntu.com jaunty-updates/main Packages [30,8kB]
Get:14
http://it.archive.ubuntu.com jaunty-updates/restricted Packages [14B]
Get:15
http://it.archive.ubuntu.com jaunty-updates/main Sources [11,4kB]
Get:16
http://it.archive.ubuntu.com jaunty-updates/restricted Sources [14B]
Get:17
http://it.archive.ubuntu.com jaunty-updates/universe Packages [11,0kB]
Get:18
http://it.archive.ubuntu.com jaunty-updates/universe Sources [1787B]
Get:19
http://it.archive.ubuntu.com jaunty-updates/multiverse Packages [675B]
Get:20
http://it.archive.ubuntu.com jaunty-updates/multiverse Sources [639B]
Get:21
http://it.archive.ubuntu.com jaunty-proposed/restricted Packages [14B]
Get:22
http://it.archive.ubuntu.com jaunty-proposed/main Packages [27,0kB]
Get:23
http://it.archive.ubuntu.com jaunty-proposed/multiverse Packages [2257B]
Get:24
http://it.archive.ubuntu.com jaunty-proposed/universe Packages [5341B]
Scaricato 1049kB in 11s (93,3kB/s)
Lettura della lista dei pacchetti in corso... Fatto
W: Errore GPG:
http://ppa.launchpad.net jaunty Release: Le seguenti firme non sono state verificate perché la chiave pubblica non è disponibile: NO_PUBKEY 1C1E55A728CBC482
W: È consigliabile eseguire apt-get update per correggere questi problemi
andrea@andrea-laptop:~$
al primo comando sudo è uscito questo che devo fare?