The disk contains an unclean file system (0, 0). Metadata kept in Windows cache, refused to mount. Failed to mount '/dev/sda1': Operation not permitted The NTFS partition is in an unsafe state. Please resume and shutdown Windows fully (no hibernation or fast restarting), or mount the volume read-only with the 'ro' mount option. mount: mounting /dev/sda1 on /cdrom failed: No such device The disk contains an unclean file system (0, 0). Metadata kept in Windows cache, refused to mount. Failed to mount '/dev/sda2': Operation not permitted The NTFS partition is in an unsafe state. Please resume and shutdown Windows fully (no hibernation or fast restarting), or mount the volume read-only with the 'ro' mount option. mount: mounting /dev/sda2 on /cdrom failed: No such device Generating locales (this might take a while)... Generation complete. pwconv: failed to change the mode of /etc/passwd- to 0600 Using CD-ROM mount point /cdrom/ Identifying... [3a874b792fef8e806f0637e415db38bd-2] Scanning disc for index files... Found 5 package indexes, 0 source indexes, 0 translation indexes and 1 signatures Found label 'Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)' This disc is called: 'Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)' Copying package lists...gpgv: Signature made Wed Apr 20 22:29:18 2016 UTC using DSA key ID FBB75451 gpgv: Good signature from "Ubuntu CD Image Automatic Signing Key " 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 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ �/dists/jessie/non-free/binary-amd64/ deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/�/ jessie contrib main Repeat this process for the rest of the CDs in your set. W: A lot of entries were discarded, something may be wrong.