stdin: Not a typewriter /init: line 7: can't open /dev/sr0: No medium found /init: line 7: can't open /dev/sr0: No medium found stdin: Not a typewriter Generating locales... en_US.UTF-8... done Generation complete. pwconv: failed to change the mode of /etc/passwd- to 0600 Using CD-ROM mount point /cdrom/ Identifying... [f37fafa4b774df98883f963d25ae2c13-2] Scanning disc for index files... Found 4 package indexes, 0 source indexes, 0 translation indexes and 2 signatures Found label 'Ubuntu 14.04.2 LTS _Trusty Tahr_ - Release amd64 (20150218.1)' This disc is called: 'Ubuntu 14.04.2 LTS _Trusty Tahr_ - Release amd64 (20150218.1)' Copying package lists...gpgv: Signature made Wed Apr 22 12:13:04 2015 UTC using DSA key ID FBB75451 gpgv: Good signature from "Ubuntu CD Image Automatic Signing Key " gpgv: Signature made Wed Feb 18 20:11:08 2015 UTC using DSA key ID FBB75451 gpgv: Good signature from "Ubuntu CD Image Automatic Signing Key " Reading Package Indexes... 0% Reading Package Indexes... Done Writing new source list Source list entries for this disc are: deb cdrom:[Ubuntu 14.04.2 LTS _Trusty Tahr_ - Release amd64 (20150218.1)]/ trusty main restricted deb cdrom:[Ubuntu 14.04.2 LTS _Trusty Tahr_ - Release amd64 (20150218.1)]/ vivid main restricted Repeat this process for the rest of the CDs in your set.