Looks like bluez is stuck:
octoquad@ugqa:~$ ps aux | grep dpkg root 3672 0.0 0.3 21080 7920 ? Ss 13:06 0:00 /usr/bin/dpkg --force-overwrite --status-fd 71 --configure libc-bin:amd64 locales:all libcap-ng0:amd64 libdbus-1-3:amd64 libexpat1:amd64 dbus:amd64 libnih1:amd64 libnih-dbus1:amd64 libcgmanager0:amd64 libavahi-common-data:amd64 libavahi-common3:amd64 libavahi-client3:amd64 libcupsmime1:amd64 ucf:all libpaper1:amd64 libprocps4:amd64 initscripts:amd64 procps:amd64 openssl:amd64 ssl-cert:all bc:amd64 cups-daemon:amd64 cups-server-common:all libpng12-0:amd64 libjbig0:amd64 libtiff5:amd64 libcupsfilters1:amd64 libcupsimage2:amd64 libfreetype6:amd64 libpoppler58:amd64 libqpdf17:amd64 poppler-utils:amd64 cups-filters-core-drivers:amd64 cups-core-drivers:amd64 cups-common:all cups-client:amd64 cups-bsd:amd64 libcupscgi1:amd64 libcupsppdc1:amd64 libusb-1.0-0:amd64 libijs-0.35:amd64 libjbig2dec0:amd64 poppler-data:all libgs9-common:all libgs9:amd64 ghostscript:amd64 cups-ppdc:amd64 libfontembed1:amd64 liblouis-data:all libgomp1:amd64 libfftw3-double3:amd64 liblqr-1-0:amd64 libltdl7:amd64 libxdmcp6:amd64 libxcb1:amd64 libx11-data:all libx11-6:amd64 libxext6:amd64 libicu55:amd64 libxml2:amd64 imagemagick-common:all libmagickcore-6.q16-2:amd64 libmagickwand-6.q16-2:amd64 hicolor-icon-theme:all imagemagick-6.q16:amd64 imagemagick:amd64 cups-filters:amd64 cups:amd64 libgirepository-1.0-1:amd64 gir1.2-javascriptcoregtk-4.0:amd64 uno-libs3:amd64 ure:amd64 libreoffice-common:all libreoffice-style-galaxy:all libreoffice-style-elementary:all libreoffice-style-tango:all libclucene-core1v5:amd64 libclucene-contribs1v5:amd64 libboost-date-time1.58.0:amd64 libcmis-0.5-5v5:amd64 libeot0:amd64 libdrm2:amd64 libglapi-mesa:amd64 libx11-xcb1:amd64 libxcb-dri2-0:amd64 libxcb-dri3-0:amd64 libxcb-glx0:amd64 libxcb-present0:amd64 libxcb-sync1:amd64 libxdamage1:amd64 libxfixes3:amd64 libxshmfence1:amd64 libxxf86vm1:amd64 libdrm-amdgpu1:amd64 libpciaccess0:amd64 libdrm-intel1:amd64 libdrm-nouveau2:amd64 libdrm-radeon1:amd64 libelf1:amd64 libbsd0:amd64 libedit2:amd64 libllvm3.8:amd64 libgl1-mesa-dri:amd64 libgl1-mesa-glx:amd64 libglew1.13:amd64 libhunspell-1.3-0:amd64 librevenge-0.0-0:amd64 fonts-opensymbol:all libsuitesparseconfig4.4.6:amd64 libcolamd2.9.1:amd64 lp-solve:amd64 libdbus-glib-1-2:amd64 libexttextcat-data:all libexttextcat-2.0-0:amd64 libgraphite2-3:amd64 libharfbuzz-icu0:amd64 libhyphen0:amd64 x11-common:all libice6:amd64 liblangtag-common:all liblangtag1:amd64 libmythes-1.2-0:amd64 libneon27-gnutls:amd64 libnspr4:amd64 libnss3:amd64 libnss3-nssdb:all libsm6:amd64 libxrender1:amd64 libxslt1.1:amd64 libreoffice-core:amd64 libreoffice-base-core:amd64 libetonyek-0.1-1:amd64 libmwaw-0.3-3:amd64 libodfgen-0.1-1:amd64 libboost-iostreams1.58.0:amd64 liborcus-0.10-0v5:amd64 libwps-0.4-4:amd64 libreoffice-calc:amd64 libcdr-0.1-1:amd64 libfreehand-0.1-1:amd64 libmspub-0.1-1:amd64 libpagemaker-0.0-0:amd64 libvisio-0.1-1:amd64 libwpd-0.10-10:amd64 libwpg-0.3-3:amd64 libreoffice-draw:amd64 libgdk-pixbuf2.0-common:all libgdk-pixbuf2.0-0:amd64 libgtk2.0-common:all libxi6:amd64 shared-mime-info:amd64 libgtk2.0-0:amd64 libreoffice-gtk:amd64 libreoffice-gnome:amd64 libreoffice-impress:amd64 libabw-0.1-1v5:amd64 libe-book-0.1-1:amd64 libreoffice-writer:amd64 libjavascriptcoregtk-4.0-18:amd64 libgstreamer1.0-0:amd64 libwayland-server0:amd64 libgbm1:amd64 libxcb-xfixes0:amd64 libegl1-mesa:amd64 libwayland-egl1-mesa:amd64 libcogl20:amd64 libcogl-pango20:amd64 libcogl-path20:amd64 libevdev2:amd64 libwacom-common:all libgudev-1.0-0:amd64 libwacom2:amd64 libmtdev1:amd64 libinput10:amd64 libcairo-gobject2:amd64 libjson-glib-1.0-common:all libjson-glib-1.0-0:amd64 libclutter-1.0-0:amd64 gnome-desktop3-data:all gsettings-desktop-schemas:all libgnome-desktop-3-12:amd64 libupower-glib3:amd64 libxcb-randr0:amd64 libxcb-xkb1:amd64 libxkbcommon-x11-0:amd64 libaccountsservice0:amd64 libproxy1v5:amd64 glib-networking-common:all glib-networking-services:amd64 glib-networking:amd64 libsoup2.4-1:amd64 libgeocode-glib0:amd64 libnm-util2:amd64 libnm-glib4:amd64 gnome-settings-daemon-schemas:all liborc-0.4-0:amd64 iso-codes:all libgstreamer-plugins-base1.0-0:amd64 libclutter-gst-3.
root 12629 0.0 0.0 4504 728 ? S 13:08 0:00 /bin/sh /var/lib/dpkg/info/bluez.postinst configure 4.101-0ubuntu13.1
Looks like bluez is stuck:
octoquad@ugqa:~$ ps aux | grep dpkg common- data:amd64 libavahi- common3: amd64 libavahi- client3: amd64 libcupsmime1:amd64 ucf:all libpaper1:amd64 libprocps4:amd64 initscripts:amd64 procps:amd64 openssl:amd64 ssl-cert:all bc:amd64 cups-daemon:amd64 cups-server- common: all libpng12-0:amd64 libjbig0:amd64 libtiff5:amd64 libcupsfilters1 :amd64 libcupsimage2:amd64 libfreetype6:amd64 libpoppler58:amd64 libqpdf17:amd64 poppler-utils:amd64 cups-filters- core-drivers: amd64 cups-core- drivers: amd64 cups-common:all cups-client:amd64 cups-bsd:amd64 libcupscgi1:amd64 libcupsppdc1:amd64 libusb-1.0-0:amd64 libijs-0.35:amd64 libjbig2dec0:amd64 poppler-data:all libgs9-common:all libgs9:amd64 ghostscript:amd64 cups-ppdc:amd64 libfontembed1:amd64 liblouis-data:all libgomp1:amd64 libfftw3- double3: amd64 liblqr-1-0:amd64 libltdl7:amd64 libxdmcp6:amd64 libxcb1:amd64 libx11-data:all libx11-6:amd64 libxext6:amd64 libicu55:amd64 libxml2:amd64 imagemagick- common: all libmagickcore- 6.q16-2: amd64 libmagickwand- 6.q16-2: amd64 hicolor- icon-theme: all imagemagick- 6.q16:amd64 imagemagick:amd64 cups-filters:amd64 cups:amd64 libgirepository -1.0-1: amd64 gir1.2- javascriptcoreg tk-4.0: amd64 uno-libs3:amd64 ure:amd64 libreoffice- common: all libreoffice- style-galaxy: all libreoffice- style-elementar y:all libreoffice- style-tango: all libclucene- core1v5: amd64 libclucene- contribs1v5: amd64 libboost- date-time1. 58.0:amd64 libcmis- 0.5-5v5: amd64 libeot0:amd64 libdrm2:amd64 libglapi-mesa:amd64 libx11-xcb1:amd64 libxcb-dri2-0:amd64 libxcb-dri3-0:amd64 libxcb-glx0:amd64 libxcb- present0: amd64 libxcb-sync1:amd64 libxdamage1:amd64 libxfixes3:amd64 libxshmfence1:amd64 libxxf86vm1:amd64 libdrm- amdgpu1: amd64 libpciaccess0:amd64 libdrm-intel1:amd64 libdrm- nouveau2: amd64 libdrm- radeon1: amd64 libelf1:amd64 libbsd0:amd64 libedit2:amd64 libllvm3.8:amd64 libgl1- mesa-dri: amd64 libgl1- mesa-glx: amd64 libglew1.13:amd64 libhunspell- 1.3-0:amd64 librevenge- 0.0-0:amd64 fonts-opensymbo l:all libsuitesparsec onfig4. 4.6:amd64 libcolamd2. 9.1:amd64 lp-solve:amd64 libdbus- glib-1- 2:amd64 libexttextcat- data:all libexttextcat- 2.0-0:amd64 libgraphite2- 3:amd64 libharfbuzz- icu0:amd64 libhyphen0:amd64 x11-common:all libice6:amd64 liblangtag- common: all liblangtag1:amd64 libmythes- 1.2-0:amd64 libneon27- gnutls: amd64 libnspr4:amd64 libnss3:amd64 libnss3-nssdb:all libsm6:amd64 libxrender1:amd64 libxslt1.1:amd64 libreoffice- core:amd64 libreoffice- base-core: amd64 libetonyek- 0.1-1:amd64 libmwaw-0.3-3:amd64 libodfgen- 0.1-1:amd64 libboost- iostreams1. 58.0:amd64 liborcus- 0.10-0v5: amd64 libwps-0.4-4:amd64 libreoffice- calc:amd64 libcdr-0.1-1:amd64 libfreehand- 0.1-1:amd64 libmspub- 0.1-1:amd64 libpagemaker- 0.0-0:amd64 libvisio- 0.1-1:amd64 libwpd- 0.10-10: amd64 libwpg-0.3-3:amd64 libreoffice- draw:amd64 libgdk- pixbuf2. 0-common: all libgdk- pixbuf2. 0-0:amd64 libgtk2. 0-common: all libxi6:amd64 shared- mime-info: amd64 libgtk2.0-0:amd64 libreoffice- gtk:amd64 libreoffice- gnome:amd64 libreoffice- impress: amd64 libabw- 0.1-1v5: amd64 libe-book- 0.1-1:amd64 libreoffice- writer: amd64 libjavascriptco regtk-4. 0-18:amd64 libgstreamer1. 0-0:amd64 libwayland- server0: amd64 libgbm1:amd64 libxcb- xfixes0: amd64 libegl1-mesa:amd64 libwayland- egl1-mesa: amd64 libcogl20:amd64 libcogl- pango20: amd64 libcogl- path20: amd64 libevdev2:amd64 libwacom-common:all libgudev- 1.0-0:amd64 libwacom2:amd64 libmtdev1:amd64 libinput10:amd64 libcairo- gobject2: amd64 libjson- glib-1. 0-common: all libjson- glib-1. 0-0:amd64 libclutter- 1.0-0:amd64 gnome-desktop3- data:all gsettings- desktop- schemas: all libgnome- desktop- 3-12:amd64 libupower- glib3:amd64 libxcb-randr0:amd64 libxcb-xkb1:amd64 libxkbcommon- x11-0:amd64 libaccountsserv ice0:amd64 libproxy1v5:amd64 glib-networking -common: all glib-networking -services: amd64 glib-networking :amd64 libsoup2.4-1:amd64 libgeocode- glib0:amd64 libnm-util2:amd64 libnm-glib4:amd64 gnome-settings- daemon- schemas: all liborc-0.4-0:amd64 iso-codes:all libgstreamer- plugins- base1.0- 0:amd64 libclutter-gst-3.
root 3672 0.0 0.3 21080 7920 ? Ss 13:06 0:00 /usr/bin/dpkg --force-overwrite --status-fd 71 --configure libc-bin:amd64 locales:all libcap-ng0:amd64 libdbus-1-3:amd64 libexpat1:amd64 dbus:amd64 libnih1:amd64 libnih-dbus1:amd64 libcgmanager0:amd64 libavahi-
root 12629 0.0 0.0 4504 728 ? S 13:08 0:00 /bin/sh /var/lib/ dpkg/info/ bluez.postinst configure 4.101-0ubuntu13.1