# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  libntdb1 python-ntdb
Use 'apt-get autoremove' to remove them.
The following packages have been kept back:
  libdrm-dev libdrm-intel1 libdrm-intel1:i386 libdrm-nouveau2
  libdrm-nouveau2:i386 libdrm-radeon1 libdrm-radeon1:i386 libdrm2 libdrm2:i386
  linux-headers-generic-lts-utopic linux-image-generic-lts-utopic
The following packages will be upgraded:
  apt-transport-https apt-utils dpkg-dev firefox firefox-locale-en
  flashplugin-installer gir1.2-gudev-1.0 gir1.2-soup-2.4 libdpkg-perl
  linux-firmware linux-libc-dev oxideqt-codecs-extra purple-facebook
  simple-scan smbclient thunderbird thunderbird-locale-en
  thunderbird-locale-en-us
18 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
1 not fully installed or removed.
Need to get 0 B/115 MB of archives.
After this operation, 42.4 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Preconfiguring packages ...
(Reading database ... 354447 files and directories currently installed.)
Preparing to unpack .../smbclient_2%3a4.3.8+dfsg-0ubuntu0.14.04.2_amd64.deb ...
Unpacking smbclient (2:4.3.8+dfsg-0ubuntu0.14.04.2) over (2:4.1.6+dfsg-1ubuntu2.14.04.11) ...
dpkg: error processing archive /var/cache/apt/archives/smbclient_2%3a4.3.8+dfsg-0ubuntu0.14.04.2_amd64.deb (--unpack):
 unable to install (supposed) new info file `/var/lib/dpkg/tmp.ci/md5sums': Is a directory
Preparing to unpack .../apt-utils_1.0.1ubuntu2.13_amd64.deb ...
Unpacking apt-utils (1.0.1ubuntu2.13) over (1.0.1ubuntu2.11) ...
Preparing to unpack .../apt-transport-https_1.0.1ubuntu2.13_amd64.deb ...
Unpacking apt-transport-https (1.0.1ubuntu2.13) over (1.0.1ubuntu2.11) ...
Preparing to unpack .../dpkg-dev_1.17.5ubuntu5.6_all.deb ...
Unpacking dpkg-dev (1.17.5ubuntu5.6) over (1.17.5ubuntu5.5) ...
Preparing to unpack .../libdpkg-perl_1.17.5ubuntu5.6_all.deb ...
Unpacking libdpkg-perl (1.17.5ubuntu5.6) over (1.17.5ubuntu5.5) ...
Preparing to unpack .../firefox_46.0+build5-0ubuntu0.14.04.2_amd64.deb ...
Unpacking firefox (46.0+build5-0ubuntu0.14.04.2) over (45.0+build2-0ubuntu0.14.04.1) ...
Preparing to unpack .../firefox-locale-en_46.0+build5-0ubuntu0.14.04.2_amd64.deb ...
Unpacking firefox-locale-en (46.0+build5-0ubuntu0.14.04.2) over (45.0+build2-0ubuntu0.14.04.1) ...
Preparing to unpack .../flashplugin-installer_11.2.202.616ubuntu0.14.04.1_amd64.deb ...
Unpacking flashplugin-installer (11.2.202.616ubuntu0.14.04.1) over (11.2.202.577ubuntu0.14.04.1) ...
Preparing to unpack .../gir1.2-gudev-1.0_1%3a204-5ubuntu20.19_amd64.deb ...
Unpacking gir1.2-gudev-1.0 (1:204-5ubuntu20.19) over (1:204-5ubuntu20.18) ...
Preparing to unpack .../gir1.2-soup-2.4_2.44.2-1ubuntu2.1_amd64.deb ...
Unpacking gir1.2-soup-2.4 (2.44.2-1ubuntu2.1) over (2.44.2-1ubuntu2) ...
Preparing to unpack .../linux-firmware_1.127.22_all.deb ...
Unpacking linux-firmware (1.127.22) over (1.127.20) ...
Preparing to unpack .../linux-libc-dev_3.13.0-85.129_amd64.deb ...
Unpacking linux-libc-dev:amd64 (3.13.0-85.129) over (3.13.0-83.127) ...
Preparing to unpack .../purple-facebook_20160409~2a24dff~66ee77378d82~110_amd64.deb ...
Unpacking purple-facebook (20160409~2a24dff~66ee77378d82~110) over (20160215~1af1f6f~92885e0456ed~109) ...
Preparing to unpack .../simple-scan_3.12.3-0ubuntu1_amd64.deb ...
Unpacking simple-scan (3.12.3-0ubuntu1) over (3.12.1-0ubuntu1) ...
Preparing to unpack .../thunderbird-locale-en_1%3a38.7.2+build1-0ubuntu0.14.04.1_amd64.deb ...
Unpacking thunderbird-locale-en (1:38.7.2+build1-0ubuntu0.14.04.1) over (1:38.6.0+build1-0ubuntu0.14.04.1) ...
Preparing to unpack .../thunderbird_1%3a38.7.2+build1-0ubuntu0.14.04.1_amd64.deb ...
Unpacking thunderbird (1:38.7.2+build1-0ubuntu0.14.04.1) over (1:38.6.0+build1-0ubuntu0.14.04.1) ...
Preparing to unpack .../thunderbird-locale-en-us_1%3a38.7.2+build1-0ubuntu0.14.04.1_all.deb ...
Unpacking thunderbird-locale-en-us (1:38.7.2+build1-0ubuntu0.14.04.1) over (1:38.6.0+build1-0ubuntu0.14.04.1) ...
Preparing to unpack .../oxideqt-codecs-extra_1.14.7-0ubuntu0.14.04.1_amd64.deb ...
Unpacking oxideqt-codecs-extra:amd64 (1.14.7-0ubuntu0.14.04.1) over (1.13.6-0ubuntu0.14.04.1) ...
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Processing triggers for gnome-menus (3.10.1-0ubuntu2) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu1) ...
Processing triggers for mime-support (3.54ubuntu1.1) ...
Processing triggers for update-notifier-common (0.154.1ubuntu1) ...
flashplugin-installer: downloading http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_20160407.1.orig.tar.gz
Installing from local file /tmp/tmpgmbdGe.gz
Flash Plugin installed.
Processing triggers for libglib2.0-0:i386 (2.40.2-0ubuntu1) ...
Processing triggers for libglib2.0-0:amd64 (2.40.2-0ubuntu1) ...
Errors were encountered while processing:
 /var/cache/apt/archives/smbclient_2%3a4.3.8+dfsg-0ubuntu0.14.04.2_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)