Steps to reproduce:
1. Have Ubuntu 16.04 LTS or 18.04 LTS system installed with any desktop
2. Install `tasksel` package, install some task `sudo tasksel install samba-server`
3. Remove some task with for example `sudo tasksel remove samba-server`
4. Wait command to finish and reboot the system
5. Get broken system without GUI login
Expected results:
* `tasksel` removes only requested task
Actual results:
* `tasksel` removes requested task and almost whole system
Notes:
* the problem was discovered on AskUbuntu (https://askubuntu.com/q/1051022/66509) - please read my answer for analysis
* the problem caused by last dash in the remove command:
$ sudo tasksel --test remove samba-server
debconf-apt-progress -- apt-get -q -y -o APT::Install-Recommends=true -o APT::Get::AutomaticRemove=true -o APT::Acquire::Retries=3 install samba-server^-
if we remove it (change "samba-server^-" to "samba-server^") it will remove only one task.
You can compare on 16.04 LTS:
$ sudo apt-get -o APT::Install-Recommends=true -o APT::Get::AutomaticRemove=true -o APT::Acquire::Retries=3 install samba-server^-
[sudo] password for xenial:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libldb1' for task 'samba-server'
Note, selecting 'python-tdb' for task 'samba-server'
Note, selecting 'libcups2' for task 'samba-server'
Note, selecting 'python-samba' for task 'samba-server'
Note, selecting 'rename' for task 'samba-server'
Note, selecting 'libwbclient0' for task 'samba-server'
Note, selecting 'python-dnspython' for task 'samba-server'
Note, selecting 'python2.7-minimal' for task 'samba-server'
Note, selecting 'samba' for task 'samba-server'
Note, selecting 'samba-dsdb-modules' for task 'samba-server'
Note, selecting 'libarchive13' for task 'samba-server'
Note, selecting 'libavahi-common-data' for task 'samba-server'
Note, selecting 'perl-modules-5.22' for task 'samba-server'
Note, selecting 'libavahi-common3' for task 'samba-server'
Note, selecting 'libpython2.7' for task 'samba-server'
Note, selecting 'python2.7' for task 'samba-server'
Note, selecting 'libaio1' for task 'samba-server'
Note, selecting 'tdb-tools' for task 'samba-server'
Note, selecting 'python' for task 'samba-server'
Note, selecting 'cifs-utils' for task 'samba-server'
Note, selecting 'libtalloc2' for task 'samba-server'
Note, selecting 'python-talloc' for task 'samba-server'
Note, selecting 'attr' for task 'samba-server'
Note, selecting 'libperl5.22' for task 'samba-server'
Note, selecting 'samba-libs' for task 'samba-server'
Note, selecting 'python-crypto' for task 'samba-server'
Note, selecting 'libpython-stdlib' for task 'samba-server'
Note, selecting 'winbind' for task 'samba-server'
Note, selecting 'samba-common' for task 'samba-server'
Note, selecting 'samba-vfs-modules' for task 'samba-server'
Note, selecting 'libfile-copy-recursive-perl' for task 'samba-server'
Note, selecting 'libsmbclient' for task 'samba-server'
Note, selecting 'smbclient' for task 'samba-server'
Note, selecting 'samba-common-bin' for task 'samba-server'
Note, selecting 'libtdb1' for task 'samba-server'
Note, selecting 'libpython2.7-minimal' for task 'samba-server'
Note, selecting 'perl' for task 'samba-server'
Note, selecting 'python-ldb' for task 'samba-server'
Note, selecting 'keyutils' for task 'samba-server'
Note, selecting 'libpython2.7-stdlib' for task 'samba-server'
Note, selecting 'libavahi-client3' for task 'samba-server'
Note, selecting 'libtevent0' for task 'samba-server'
Note, selecting 'python-minimal' for task 'samba-server'
Note, selecting 'update-inetd' for task 'samba-server'
Note, selecting 'liblzo2-2' for task 'samba-server'
Package 'attr' is not installed, so not removed
Package 'keyutils' is not installed, so not removed
Package 'libaio1' is not installed, so not removed
Package 'python-dnspython' is not installed, so not removed
Package 'tdb-tools' is not installed, so not removed
Package 'cifs-utils' is not installed, so not removed
Package 'samba' is not installed, so not removed
Package 'samba-dsdb-modules' is not installed, so not removed
Package 'samba-vfs-modules' is not installed, so not removed
Package 'winbind' is not installed, so not removed
The following additional packages will be installed:
foomatic-filters
Recommended packages:
cups-client | lpr | lprng | rlpr ghostscript colord
The following packages will be REMOVED:
a11y-profile-manager-indicator account-plugin-facebook account-plugin-flickr
account-plugin-google acl adwaita-icon-theme apg app-install-data apport-gtk
aptdaemon-data apturl apturl-common atril atril-common avahi-daemon
avahi-discover avahi-dnsconfd avahi-utils bamfdaemon blueman bluez-cups
bluez-obexd brasero brasero-cdrkit brasero-common build-essential
ca-certificates-java caja caja-common caja-extensions-common caja-gksu
caja-open-terminal caja-sendto caja-wallpaper cheese cheese-common colord
colord-data compiz compiz-gnome compiz-mate compton cracklib-runtime cups
cups-browsed cups-bsd cups-client cups-common cups-core-drivers cups-daemon
cups-filters cups-filters-core-drivers cups-pk-helper cups-ppdc
cups-server-common dc dconf-editor default-jre-headless deja-dup
deja-dup-backend-cloudfiles deja-dup-backend-gvfs deja-dup-backend-s3
deja-dup-caja diffstat dpkg-dev duplicity dvd+rw-tools enchant engrampa
engrampa-common eom eom-common evolution-data-server
evolution-data-server-common evolution-data-server-online-accounts fakeroot
firefox folder-color-caja folder-color-common fonts-mathjax fonts-opensymbol
fwupd g++ g++-5 galculator gcc gcc-5 gcr gdebi gdebi-core geoclue
geoclue-ubuntu-geoip gettext ghostscript ghostscript-x
gir1.2-appindicator3-0.1 gir1.2-atk-1.0 gir1.2-atspi-2.0 gir1.2-caja
gir1.2-dbusmenu-glib-0.4 gir1.2-dee-1.0 gir1.2-freedesktop
gir1.2-gdkpixbuf-2.0 gir1.2-gnomekeyring-1.0 gir1.2-gtk-2.0 gir1.2-gtk-3.0
gir1.2-ibus-1.0 gir1.2-javascriptcoregtk-3.0 gir1.2-javascriptcoregtk-4.0
gir1.2-mate-panel gir1.2-notify-0.7 gir1.2-pango-1.0 gir1.2-peas-1.0
gir1.2-rb-3.0 gir1.2-secret-1 gir1.2-soup-2.4 gir1.2-udisks-2.0
gir1.2-unity-5.0 gir1.2-vte-2.91 gir1.2-webkit-3.0 gir1.2-webkit2-4.0
gir1.2-wnck-1.0 gir1.2-wnck-3.0 gkbd-capplet gksu gnome-bluetooth
gnome-desktop3-data gnome-disk-utility gnome-icon-theme
gnome-icon-theme-symbolic gnome-keyring gnome-orca gnome-session-bin
gnome-session-canberra gnome-settings-daemon-schemas gnome-system-monitor
gnome-system-tools gnome-themes-standard gnome-themes-standard-data
gnome-user-guide gnome-user-share gnome-video-effects growisofs
gsettings-ubuntu-schemas gstreamer1.0-clutter-3.0 gstreamer1.0-nice
gstreamer1.0-tools gtk2-engines gtk2-engines-murrine gtk2-engines-pixbuf
gucharmap gufw gvfs-backends hardening-includes hexchat hexchat-common
hexchat-perl hexchat-plugins hexchat-python hplip hplip-data
humanity-icon-theme hunspell-en-us ibus indicator-applet
indicator-application indicator-application-gtk2 indicator-bluetooth
indicator-datetime indicator-keyboard indicator-messages indicator-power
indicator-sound indicator-sound-gtk2 intltool-debian ippusbxd java-common
language-selector-gnome liba11y-profile-manager-0.1-0 libabw-0.1-1v5
libaccount-plugin-1.0-0 libaccount-plugin-generic-oauth
libaccount-plugin-google libaccounts-glib0 libaccounts-qt5-1
libalgorithm-diff-perl libalgorithm-diff-xs-perl libalgorithm-merge-perl
libappindicator1 libappindicator3-1 libappstream-glib8 libapt-pkg-perl
libarchive-zip-perl libarchive13 libart-2.0-2 libasan2 libasm4-java
libasprintf-dev libatk-adaptor libatk-bridge2.0-0 libatk1.0-0 libatk1.0-data
libatkmm-1.6-1v5 libatomic1 libatrildocument3 libatrilview3
libauthen-sasl-perl libavahi-client3 libavahi-common-data libavahi-common3
libavahi-compat-libdnssd1 libavahi-core7 libavahi-glib1 libbamf3-2
libbasicusageenvironment1 libblas-common libblas3 libbluray-bdj
libboost-date-time1.58.0 libbrasero-media3-1 libburn4 libc-dev-bin libc6-dev
libcairo-perl libcairomm-1.0-1v5 libcaja-extension1 libcamel-1.2-54
libcanberra-gtk-module libcanberra-gtk0 libcanberra-gtk3-0
libcanberra-gtk3-module libcanberra-pulse libcanberra0 libcddb2
libcdio-cdda1 libcdio-paranoia1 libcdr-0.1-1 libcgi-fast-perl libcgi-pm-perl
libcheese-gtk25 libcheese8 libchromaprint0 libcilkrts5
libclass-accessor-perl libclone-perl libclucene-contribs1v5
libclucene-core1v5 libclutter-1.0-0 libclutter-1.0-common
libclutter-gst-3.0-0 libclutter-gtk-1.0-0 libcmis-0.5-5v5 libcogl-common
libcogl-pango20 libcogl-path20 libcogl20 libcolamd2.9.1 libcolord2
libcolorhug2 libcompizconfig0 libconfig9 libconfuse-common libconfuse0
libcrack2 libcups2 libcupscgi1 libcupsfilters1 libcupsimage2 libcupsmime1
libcupsppdc1 libdata-alias-perl libdbusmenu-glib4 libdbusmenu-gtk3-4
libdbusmenu-gtk4 libdc1394-22 libdca0 libdfu1 libdigest-hmac-perl
libdirectfb-1.2-9 libdmapsharing-3.0-2 libdpkg-perl libdvbpsi10
libe-book-0.1-1 libebackend-1.2-10 libebml4v5 libebook-1.2-16
libebook-contacts-1.2-2 libecal-1.2-19 libedata-book-1.2-25
libedata-cal-1.2-28 libedataserver-1.2-21 libemail-valid-perl libenchant1c2a
libencode-locale-perl libeot0 libetonyek-0.1-1 libevent-2.0-5 libexempi3
libexif12 libexiv2-14 libexporter-tiny-perl libexttextcat-2.0-0 libfaad2
libfakekey0 libfakeroot libfarstream-0.2-5 libfcgi-perl libfcitx-config4
libfcitx-gclient0 libfcitx-utils0 libfftw3-single3 libfile-basedir-perl
libfile-copy-recursive-perl libfile-desktopentry-perl libfile-fcntllock-perl
libfile-listing-perl libfile-mimeinfo-perl libfont-afm-perl libfontembed1
libfreehand-0.1-1 libfreerdp-cache1.1 libfreerdp-client1.1
libfreerdp-codec1.1 libfreerdp-common1.1.0 libfreerdp-core1.1
libfreerdp-crypto1.1 libfreerdp-gdi1.1 libfreerdp-locale1.1
libfreerdp-primitives1.1 libfreerdp-utils1.1 libfwupd1 libgail-3-0
libgail-common libgail18 libgcab-1.0-0 libgcc-5-dev libgcr-ui-3-1 libgd3
libgdata-common libgdata22 libgee-0.8-2 libgeoclue0 libgeocode-glib0
libgeonames0 libgettextpo-dev libgettextpo0 libgexiv2-2 libgfortran3
libgksu2-0 libglade2-0 libgles2-mesa libglew1.13 libglib-perl libgmime-2.6-0
libgnome-bluetooth13 libgnome-desktop-3-12 libgnome-keyring-common
libgnome-keyring0 libgnome-menu-3-0 libgnomekbd-common libgnomekbd8
libgoa-1.0-0b libgoa-1.0-common libgpgme11 libgphoto2-6 libgphoto2-l10n
libgphoto2-port12 libgrilo-0.2-1 libgroupsock8 libgs9 libgs9-common
libgssdp-1.0-3 libgtk-3-0 libgtk-3-bin libgtk-3-common libgtk2-perl
libgtk2.0-0 libgtk2.0-bin libgtk2.0-common libgtkmm-2.4-1v5 libgtkmm-3.0-1v5
libgtksourceview2.0-0 libgtksourceview2.0-common libgtkspell0 libgtop-2.0-10
libgtop2-common libgucharmap-2-90-7 libgupnp-1.0-4 libgupnp-igd-1.0-4
libgusb2 libgutenprint2 libgweather-3-6 libgweather-common libgxps2
libharfbuzz-icu0 libhpmud0 libhtml-form-perl libhtml-format-perl
libhtml-parser-perl libhtml-tagset-perl libhtml-tree-perl
libhttp-cookies-perl libhttp-daemon-perl libhttp-date-perl
libhttp-message-perl libhttp-negotiate-perl libhunspell-1.3-0 libhyphen0
libibus-1.0-5 libical1a libido-0.1-0 libido3-0.1-0 libieee1284-3 libijs-0.35
libindicator3-7 libindicator7 libio-html-perl libio-pty-perl
libio-socket-inet6-perl libio-socket-ssl-perl libio-string-perl
libipc-run-perl libipc-system-simple-perl libiso9660-8 libisofs6 libitm1
libjasper1 libjavascriptcoregtk-1.0-0 libjavascriptcoregtk-3.0-0
libjavascriptcoregtk-4.0-18 libjbig2dec0 libjs-mathjax libjson-glib-1.0-0
libjson-glib-1.0-common libjte1 libkate1 libkeybinder-3.0-0 libkpathsea6
liblangtag-common liblangtag1 liblapack3 libldb1 liblightdm-gobject-1-0
liblircclient0 liblist-moreutils-perl liblivemedia50 liblouis-data liblouis9
liblouisutdml-bin liblouisutdml-data liblouisutdml6 liblsan0 liblua5.2-0
liblwp-mediatypes-perl liblwp-protocol-https-perl liblzo2-2
libmailtools-perl libmarco-private0 libmate-desktop-2-17 libmate-menu2
libmate-panel-applet-4-1 libmate-sensors-applet-plugin0 libmate-slab0
libmate-window-settings1 libmatedict6 libmatekbd-common libmatekbd4
libmatemixer-common libmatemixer0 libmateweather-common libmateweather1
libmatroska6v5 libmeanwhile1 libmediaart-2.0-0 libmessaging-menu0
libmetacity-private3a libmhash2 libminiupnpc10 libmpcdec6 libmpx0
libmspub-0.1-1 libmwaw-0.3-3 libmythes-1.2-0 libnatpmp1
libnautilus-extension1a libneon27-gnutls libnet-dbus-perl libnet-dns-perl
libnet-domain-tld-perl libnet-http-perl libnet-ip-perl libnet-libidn-perl
libnet-smtp-ssl-perl libnet-ssleay-perl libnice10 libnm-glib-vpn1
libnm-glib4 libnm-gtk-common libnm-gtk0 libnm-util2 libnma-common libnma0
libnspr4 libnss-mdns libnss3 libnss3-nssdb liboauth0 libodfgen-0.1-1
liboobs-1-5 liborcus-0.10-0v5 libpagemaker-0.0-0 libpanel-applet0
libpango-perl libpangomm-1.4-1v5 libpangoxft-1.0-0
libparse-debianchangelog-perl libpeas-1.0-0 libpeas-1.0-0-python3loader
libpeas-common libperl5.22 libperlio-gzip-perl libplank-common libplank1
libpoppler-glib8 libprotobuf9v5 libproxy-tools libpulse-mainloop-glib0
libpurple-bin libpurple0 libpwquality-common libpwquality1 libpython-stdlib
libpython2.7 libpython2.7-minimal libpython2.7-stdlib libqpdf21
libqt5libqgtk2 libqt5opengl5 libqt5printsupport5 libqt5webkit5
libqt5x11extras5 libqt5xml5 libquadmath0 libquvi-scripts libquvi7
libraptor2-0 librasqal3 libraw15 librdf0
libreoffice-avmedia-backend-gstreamer libreoffice-base-core libreoffice-calc
libreoffice-core libreoffice-draw libreoffice-gnome libreoffice-gtk
libreoffice-impress libreoffice-math libreoffice-ogltrans
libreoffice-pdfimport libreoffice-writer libresid-builder0c2a librest-0.7-0
librevenge-0.0-0 librhythmbox-core9 librsync1 libsane libsane-common
libsane-hpaio libsbc1 libsdl-image1.2 libsdl1.2debian libsidplay2v5
libsignon-extension1 libsignon-glib1 libsignon-plugins-common1
libsignon-qt5-1 libsmbclient libsnmp-base libsnmp30 libsocket6-perl
libsoup-gnome2.4-1 libspectre1 libstdc++-5-dev libsub-name-perl
libsuitesparseconfig4.4.6 libtalloc2 libtcl8.6 libtdb1 libtevent0
libtext-levenshtein-perl libtie-ixhash-perl libtimedate-perl
libtimezonemap-data libtimezonemap1 libtk8.6 libtopmenu-client-gtk2-0
libtopmenu-client-gtk3-0 libtopmenu-server-gtk2-0 libtopmenu-server-gtk3-0
libtotem-plparser-common libtotem-plparser18 libtracker-sparql-1.0-0
libtsan0 libubsan0 libunique-1.0-0 libunistring0 libunity-control-center1
libunity-protocol-private0 libunity-scopes-json-def-desktop
libunity-settings-daemon1 libunity9 libupnp6 libupower-glib3 liburi-perl
liburl-dispatcher1 libusageenvironment3 libva-drm1 libva-x11-1 libvcdinfo0
libvisio-0.1-1 libvlc5 libvlccore8 libvncclient1 libvorbisfile3
libvte-2.91-0 libvte-2.91-common libvte-common libvte9 libwayland-cursor0
libwayland-egl1-mesa libwbclient0 libwebkit2gtk-4.0-37
libwebkit2gtk-4.0-37-gtk2 libwebkitgtk-1.0-0 libwebkitgtk-1.0-common
libwebkitgtk-3.0-0 libwebkitgtk-3.0-common libwebpdemux1 libwebpmux1
libwebrtc-audio-processing-0 libwinpr-crt0.1 libwinpr-dsparse0.1
libwinpr-environment0.1 libwinpr-file0.1 libwinpr-handle0.1 libwinpr-heap0.1
libwinpr-input0.1 libwinpr-interlocked0.1 libwinpr-library0.1
libwinpr-path0.1 libwinpr-pool0.1 libwinpr-registry0.1 libwinpr-rpc0.1
libwinpr-sspi0.1 libwinpr-synch0.1 libwinpr-sysinfo0.1 libwinpr-thread0.1
libwinpr-utils0.1 libwnck-3-0 libwnck-3-common libwnck-common libwnck22
libwpd-0.10-10 libwpg-0.3-3 libwps-0.4-4 libwww-perl libwww-robotrules-perl
libx11-protocol-perl libxcb-composite0 libxcb-xv0 libxklavier16
libxml-parser-perl libxml-twig-perl libxml-xpathengine-perl libxres1
libyajl2 libyaml-0-2 libyaml-libyaml-perl libyelp0 libzephyr4
lightdm-gtk-greeter lightdm-gtk-greeter-settings lintian linux-libc-dev
lp-solve make manpages-dev marco marco-common mate-applet-topmenu
mate-applets mate-applets-common mate-control-center
mate-control-center-common mate-desktop mate-desktop-common
mate-desktop-environment-core mate-dock-applet mate-gnome-main-menu-applet
mate-icon-theme mate-icon-theme-faenza mate-indicator-applet
mate-indicator-applet-common mate-media mate-media-common mate-menu
mate-menus mate-netbook mate-netbook-common mate-netspeed
mate-netspeed-common mate-notification-daemon
mate-notification-daemon-common mate-panel mate-panel-common mate-polkit
mate-polkit-common mate-power-manager mate-power-manager-common
mate-screensaver mate-screensaver-common mate-sensors-applet
mate-sensors-applet-common mate-session-manager mate-settings-daemon
mate-settings-daemon-common mate-system-monitor mate-system-monitor-common
mate-terminal mate-terminal-common mate-themes mate-tweak mate-user-guide
mate-utils mate-utils-common media-player-info menu menu-xdg metacity-common
mousetweaks mozo mscompress nautilus nautilus-data nautilus-sendto
network-manager-gnome network-manager-pptp-gnome notification-daemon onboard
onboard-data openjdk-8-jre-headless p11-kit p11-kit-modules p7zip-full
pastebinit patch patchutils perl perl-modules-5.22 pidgin pidgin-data
pidgin-libnotify pinentry-gnome3 pinentry-gtk2 pkg-config plank pluma
pluma-common policykit-1-gnome printer-driver-brlaser printer-driver-c2esp
printer-driver-foo2zjs printer-driver-foo2zjs-common
printer-driver-gutenprint printer-driver-hpcups printer-driver-pnm2ppa
printer-driver-postscript-hp printer-driver-ptouch printer-driver-pxljr
printer-driver-sag-gdi printer-driver-splix pulseaudio
pulseaudio-module-bluetooth pulseaudio-module-x11 python python-avahi
python-boto python-cairo python-caja python-caja-common python-cffi-backend
python-chardet python-cloudfiles python-configobj python-crypto
python-cryptography python-dbus python-enum34 python-gdbm python-gi
python-glade2 python-gobject python-gobject-2 python-gtk2
python-gtksourceview2 python-idna python-ipaddress python-ldb
python-lockfile python-mate-menu python-minimal python-ndg-httpsclient
python-netifaces python-openssl python-pkg-resources python-pyasn1
python-requests python-samba python-six python-talloc python-tdb
python-urllib3 python-wnck python-xdg python-xlib python2.7
python2.7-minimal python3-aptdaemon.gtk3widgets python3-brlapi python3-cairo
python3-cups python3-cupshelpers python3-decorator python3-gi-cairo
python3-louis python3-mako python3-numpy python3-pexpect python3-pil
python3-polib python3-psutil python3-ptyprocess python3-pyatspi
python3-pycurl python3-renderpm python3-reportlab python3-reportlab-accel
python3-scipy python3-software-properties python3-speechd python3-xdg qpdf
rename rhythmbox rhythmbox-data rhythmbox-plugin-cdrecorder
rhythmbox-plugin-zeitgeist rhythmbox-plugins samba-common samba-common-bin
samba-libs sane-utils seahorse session-migration sessioninstaller shotwell
shotwell-common signon-keyring-extension signon-plugin-oauth2
signon-plugin-password signon-ui signon-ui-service signon-ui-x11 signond
simple-scan smbclient snapd software-properties-common
software-properties-gtk sound-theme-freedesktop squashfs-tools ssl-cert
synapse syslinux syslinux-common syslinux-legacy
system-config-printer-common system-config-printer-gnome
system-config-printer-udev system-tools-backends t1utils tcl tcl8.6
thunderbird tilda tk tk8.6 topmenu-gtk2 topmenu-gtk3 transmission-common
transmission-gtk ubuntu-mate-artwork ubuntu-mate-core
ubuntu-mate-default-settings ubuntu-mate-desktop ubuntu-mate-icon-themes
ubuntu-mate-libreoffice-draw-icons ubuntu-mate-lightdm-theme
ubuntu-mate-themes ubuntu-mate-welcome ubuntu-mono
ubuntu-release-upgrader-gtk ubuntu-system-service ubuntu-touch-sounds
unity-asset-pool unity-control-center unity-control-center-signon
unity-settings-daemon update-inetd update-manager update-notifier
update-notifier-common upower usb-creator-common usb-creator-gtk vlc
vlc-data vlc-nox vlc-plugin-notify vlc-plugin-samba xdg-user-dirs-gtk
xul-ext-gdata-provider xul-ext-lightning yelp yelp-xsl zenity zenity-common
The following NEW packages will be installed:
foomatic-filters
0 upgraded, 1 newly installed, 938 to remove and 8 not upgraded.
Need to get 0 B/90,0 kB of archives.
After this operation, 2 315 MB disk space will be freed.
Do you want to continue? [Y/n]
with corrected command:
xenial@xenial-vb:~$ sudo apt-get -o APT::Install-Recommends=true -o APT::Get::AutomaticRemove=true -o APT::Acquire::Retries=3 install samba-server^
[sudo] password for xenial:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libldb1' for task 'samba-server'
Note, selecting 'python-tdb' for task 'samba-server'
Note, selecting 'libcups2' for task 'samba-server'
Note, selecting 'python-samba' for task 'samba-server'
Note, selecting 'rename' for task 'samba-server'
Note, selecting 'libwbclient0' for task 'samba-server'
Note, selecting 'python-dnspython' for task 'samba-server'
Note, selecting 'python2.7-minimal' for task 'samba-server'
Note, selecting 'samba' for task 'samba-server'
Note, selecting 'samba-dsdb-modules' for task 'samba-server'
Note, selecting 'libarchive13' for task 'samba-server'
Note, selecting 'libavahi-common-data' for task 'samba-server'
Note, selecting 'perl-modules-5.22' for task 'samba-server'
Note, selecting 'libavahi-common3' for task 'samba-server'
Note, selecting 'libpython2.7' for task 'samba-server'
Note, selecting 'python2.7' for task 'samba-server'
Note, selecting 'libaio1' for task 'samba-server'
Note, selecting 'tdb-tools' for task 'samba-server'
Note, selecting 'python' for task 'samba-server'
Note, selecting 'cifs-utils' for task 'samba-server'
Note, selecting 'libtalloc2' for task 'samba-server'
Note, selecting 'python-talloc' for task 'samba-server'
Note, selecting 'attr' for task 'samba-server'
Note, selecting 'libperl5.22' for task 'samba-server'
Note, selecting 'samba-libs' for task 'samba-server'
Note, selecting 'python-crypto' for task 'samba-server'
Note, selecting 'libpython-stdlib' for task 'samba-server'
Note, selecting 'winbind' for task 'samba-server'
Note, selecting 'samba-common' for task 'samba-server'
Note, selecting 'samba-vfs-modules' for task 'samba-server'
Note, selecting 'libfile-copy-recursive-perl' for task 'samba-server'
Note, selecting 'libsmbclient' for task 'samba-server'
Note, selecting 'smbclient' for task 'samba-server'
Note, selecting 'samba-common-bin' for task 'samba-server'
Note, selecting 'libtdb1' for task 'samba-server'
Note, selecting 'libpython2.7-minimal' for task 'samba-server'
Note, selecting 'perl' for task 'samba-server'
Note, selecting 'python-ldb' for task 'samba-server'
Note, selecting 'keyutils' for task 'samba-server'
Note, selecting 'libpython2.7-stdlib' for task 'samba-server'
Note, selecting 'libavahi-client3' for task 'samba-server'
Note, selecting 'libtevent0' for task 'samba-server'
Note, selecting 'python-minimal' for task 'samba-server'
Note, selecting 'update-inetd' for task 'samba-server'
Note, selecting 'liblzo2-2' for task 'samba-server'
libfile-copy-recursive-perl is already the newest version (0.38-1).
libfile-copy-recursive-perl set to manually installed.
libldb1 is already the newest version (2:1.1.24-1ubuntu3).
libldb1 set to manually installed.
liblzo2-2 is already the newest version (2.08-1.2).
liblzo2-2 set to manually installed.
libtalloc2 is already the newest version (2.1.5-2).
libtalloc2 set to manually installed.
libtdb1 is already the newest version (1.3.8-2).
libtdb1 set to manually installed.
python-ldb is already the newest version (2:1.1.24-1ubuntu3).
python-ldb set to manually installed.
python-talloc is already the newest version (2.1.5-2).
python-talloc set to manually installed.
python-tdb is already the newest version (1.3.8-2).
python-tdb set to manually installed.
rename is already the newest version (0.20-4).
rename set to manually installed.
update-inetd is already the newest version (4.43).
update-inetd set to manually installed.
libarchive13 is already the newest version (3.1.2-11ubuntu0.16.04.3).
libarchive13 set to manually installed.
libavahi-client3 is already the newest version (0.6.32~rc+dfsg-1ubuntu2.2).
libavahi-client3 set to manually installed.
libavahi-common-data is already the newest version (0.6.32~rc+dfsg-1ubuntu2.2).
libavahi-common-data set to manually installed.
libavahi-common3 is already the newest version (0.6.32~rc+dfsg-1ubuntu2.2).
libavahi-common3 set to manually installed.
libcups2 is already the newest version (2.1.3-4ubuntu0.4).
libcups2 set to manually installed.
libperl5.22 is already the newest version (5.22.1-9ubuntu0.5).
libperl5.22 set to manually installed.
libpython-stdlib is already the newest version (2.7.12-1~16.04).
libpython-stdlib set to manually installed.
libpython2.7 is already the newest version (2.7.12-1ubuntu0~16.04.3).
libpython2.7 set to manually installed.
libpython2.7-minimal is already the newest version (2.7.12-1ubuntu0~16.04.3).
libpython2.7-minimal set to manually installed.
libpython2.7-stdlib is already the newest version (2.7.12-1ubuntu0~16.04.3).
libpython2.7-stdlib set to manually installed.
libsmbclient is already the newest version (2:4.3.11+dfsg-0ubuntu0.16.04.13).
libsmbclient set to manually installed.
libtevent0 is already the newest version (0.9.28-0ubuntu0.16.04.1).
libtevent0 set to manually installed.
libwbclient0 is already the newest version (2:4.3.11+dfsg-0ubuntu0.16.04.13).
libwbclient0 set to manually installed.
perl is already the newest version (5.22.1-9ubuntu0.5).
perl set to manually installed.
perl-modules-5.22 is already the newest version (5.22.1-9ubuntu0.5).
perl-modules-5.22 set to manually installed.
python is already the newest version (2.7.12-1~16.04).
python set to manually installed.
python-crypto is already the newest version (2.6.1-6ubuntu0.16.04.3).
python-crypto set to manually installed.
python-minimal is already the newest version (2.7.12-1~16.04).
python-minimal set to manually installed.
python-samba is already the newest version (2:4.3.11+dfsg-0ubuntu0.16.04.13).
python-samba set to manually installed.
python2.7 is already the newest version (2.7.12-1ubuntu0~16.04.3).
python2.7 set to manually installed.
python2.7-minimal is already the newest version (2.7.12-1ubuntu0~16.04.3).
python2.7-minimal set to manually installed.
samba-common is already the newest version (2:4.3.11+dfsg-0ubuntu0.16.04.13).
samba-common set to manually installed.
samba-common-bin is already the newest version (2:4.3.11+dfsg-0ubuntu0.16.04.13).
samba-common-bin set to manually installed.
samba-libs is already the newest version (2:4.3.11+dfsg-0ubuntu0.16.04.13).
samba-libs set to manually installed.
smbclient is already the newest version (2:4.3.11+dfsg-0ubuntu0.16.04.13).
smbclient set to manually installed.
Suggested packages:
bind9 bind9utils ctdb ldb-tools smbldap-tools libnss-winbind libpam-winbind
The following packages will be REMOVED:
libpaps0 paps
The following NEW packages will be installed:
attr cifs-utils keyutils libaio1 python-dnspython samba samba-dsdb-modules
samba-vfs-modules tdb-tools winbind
0 upgraded, 10 newly installed, 2 to remove and 8 not upgraded.
Need to get 0 B/2 049 kB of archives.
After this operation, 16,6 MB of additional disk space will be used.
Do you want to continue? [Y/n]
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: tasksel 3.34ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-128.154-generic 4.4.131
Uname: Linux 4.4.0-128-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: MATE
Date: Mon Jul 2 13:15:29 2018
InstallationDate: Installed on 2018-01-04 (178 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: tasksel
UpgradeStatus: No upgrade log present (probably fresh install)
I was hit by this bug yesterday.