stdin: error 0
Generating locales...
  it_IT.UTF-8... done
Generation complete.
pwconv: failed to change the mode of /etc/passwd- to 0600
/usr/lib/python2.7/dist-packages/LanguageSelector/LocaleInfo.py:256: UserWarning: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
  warnings.warn(msg.args[0].encode('UTF-8'))
Using CD-ROM mount point /cdrom/
Identifying.. [dd80f6b43fa50a604ea631f8f98fca5f-2]
Scanning disc for index files..
Found 4 package indexes, 0 source indexes, 0 translation indexes and 1 signatures
Found label 'Ubuntu-Studio 12.04 _Precise Pangolin_ - Release i386 (20120423)'
This disc is called: 
'Ubuntu-Studio 12.04 _Precise Pangolin_ - Release i386 (20120423)'
Copying package lists...gpgv: Signature made Mon Apr 23 16:15:12 2012 UTC using DSA key ID FBB75451
gpgv: Good signature from "Ubuntu CD Image Automatic Signing Key <cdimage@ubuntu.com>"

Reading Package Indexes... 0%

Reading Package Indexes... 1%

Reading Package Indexes... Done
Writing new source list
Source list entries for this disc are:
deb cdrom:[Ubuntu-Studio 12.04 _Precise Pangolin_ - Release i386 (20120423)]/ precise main multiverse restricted universe
Repeat this process for the rest of the CDs in your set.
W: Skipping nonexistent file /cdrom/dists/precise/main/binary-i386/Packages
W: Skipping nonexistent file /cdrom/dists/precise/main/debian-installer/binary-i386/Packages
W: Skipping nonexistent file /cdrom/dists/precise/multiverse/binary-i386/Packages
W: Skipping nonexistent file /cdrom/dists/precise/restricted/binary-i386/Packages
W: Skipping nonexistent file /cdrom/dists/precise/restricted/debian-installer/binary-i386/Packages
W: Skipping nonexistent file /cdrom/dists/precise/universe/binary-i386/Packages
W: Skipping nonexistent file /cdrom/dists/precise/universe/debian-installer/binary-i386/Packages