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
stdin: Not a typewriter
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... [cf41a65537b801dae8b419701da9d92d-2]
Scanning disc for index files...
Found 4 package indexes, 0 source indexes, 0 translation indexes and 1 signatures
Found label 'Lubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801)'
This disc is called: 
'Lubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801)'
Copying package lists...gpgv: Signature made Tue Aug  1 11:38:19 2017 UTC using RSA key ID EFE21092
gpgv: Good signature from "Ubuntu CD Image Automatic Signing Key (2012) <cdimage@ubuntu.com>"

Reading Package Indexes... 0%

Reading Package Indexes... Done
Writing new source list
Source list entries for this disc are:
deb cdrom:[Lubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801)]/ xenial main multiverse restricted universe
Repeat this process for the rest of the CDs in your set.
grep: /root/etc/apt/apt.conf.d/50unattended-upgrades: No such file or directory