stdin: error 0 Failed to read last sector (976771119): Invalid argument HINTS: Either the volume is a RAID/LDM but it wasn't setup yet, or it was not setup correctly (e.g. by not using mdadm --build ...), or a wrong device is tried to be mounted, or the partition table is corrupt (partition is smaller than NTFS), or the NTFS boot sector is corrupt (NTFS size is not valid). Failed to mount '/dev/sdb1': Invalid argument The device '/dev/sdb1' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? mount: mounting /dev/sdb1 on /cdrom failed: No such device /init: line 7: can't open /dev/sdc: No medium found /init: line 7: can't open /dev/sdc: No medium found /init: line 7: can't open /dev/sdd: No medium found /init: line 7: can't open /dev/sdd: No medium found /init: line 7: can't open /dev/sde: No medium found /init: line 7: can't open /dev/sde: No medium found /init: line 7: can't open /dev/sdf: No medium found /init: line 7: can't open /dev/sdf: No medium found Generating locales... en_US.UTF-8... up-to-date 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.. [4f1cea802f8b3862d0cb0cb36d4d5ad5-2] Scanning disc for index files.. Found 2 package indexes, 0 source indexes, 0 translation indexes and 1 signatures Found label 'Kubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)' This disc is called: 'Kubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)' Copying package lists...gpgv: Signature made Mon Apr 23 13:21:05 2012 UTC using DSA key ID FBB75451 gpgv: Good signature from "Ubuntu CD Image Automatic Signing Key " Reading Package Indexes... 0% Reading Package Indexes... 9% Reading Package Indexes... Done Writing new source list Source list entries for this disc are: deb cdrom:[Kubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)]/ precise main restricted 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/restricted/binary-i386/Packages