unable to open '/dev/dm-1'
unable to open '/dev/dm-2'
unable to open '/dev/sda'
unable to open '/dev/sdb'
stdin: error 0
Generating locales...
  en_US.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.. [3e1f3174be614c045bd90cdd709657de-2]
Scanning disc for index files..
Found 4 package indexes, 0 source indexes, 0 translation indexes and 1 signatures
Found label 'Ubuntu 12.04 LTS _Precise Pangolin_ - Beta amd64 (20120404)'
This disc is called: 
'Ubuntu 12.04 LTS _Precise Pangolin_ - Beta amd64 (20120404)'
Copying package lists...gpgv: Signature made Wed Apr  4 08:34:23 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... 10%

Reading Package Indexes... Done
Writing new source list
Source list entries for this disc are:
deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Beta amd64 (20120404)]/ dists/precise/main/binary-i386/
deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Beta amd64 (20120404)]/ dists/precise/restricted/binary-i386/
deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Beta amd64 (20120404)]/ precise main restricted
Repeat this process for the rest of the CDs in your set.
W: Skipping nonexistent file /cdrom/dists/precise/main/binary-amd64/Packages
W: Skipping nonexistent file /cdrom/dists/precise/main/binary-i386/Packages
W: Skipping nonexistent file /cdrom/dists/precise/restricted/binary-amd64/Packages
W: Skipping nonexistent file /cdrom/dists/precise/restricted/binary-i386/Packages
Adding 'diversion of /usr/bin/bluetooth-applet to /usr/bin/bluetooth-applet.orig by casper'