Generating locales...
  en_US.UTF-8... up-to-date
Generation complete.
No such key 'auto-launch' in schema 'com.ubuntu.update-notifier' as specified in override file '/usr/share/glib-2.0/schemas/20_ubuntustudio-default-settings.gschema.override'; ignoring override for this key.
pwconv: failed to change the mode of /etc/passwd- to 0600
Using CD-ROM mount point /cdrom/
Identifying... [3d50f9243a9e876036c4fd738b24b034-2]
Scanning disc for index files...
Found 4 package indexes, 0 source indexes, 0 translation indexes and 1 signatures
Found label 'Ubuntu-Studio 14.04 LTS _Trusty Tahr_ - Release amd64 (20140416.3)'
This disc is called: 
'Ubuntu-Studio 14.04 LTS _Trusty Tahr_ - Release amd64 (20140416.3)'
Copying package lists...gpgv: Signature made Wed Apr 16 22:56:31 2014 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... Done
Writing new source list
Source list entries for this disc are:
deb cdrom:[Ubuntu-Studio 14.04 LTS _Trusty Tahr_ - Release amd64 (20140416.3)]/ trusty main multiverse restricted universe
Repeat this process for the rest of the CDs in your set.
Processing triggers for libc-bin (2.19-0ubuntu6) ...