我想知道是否有人可以帮助我解决我的情况。
所以我今天使用以下命令使我的系统保持最新状态记录的 Debian 流程：
sudo apt-get updatesudo apt-get dist-upgrade
由于包问题，后一步无法完成：
$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
exim4-base : Breaks: exim4-daemon-light (< 4.89) but 4.84.2-2+deb8u3 is to be installed
exim4-config : Breaks: exim4-daemon-light (< 4.87~RC5) but 4.84.2-2+deb8u3 is to be installed
gnome-shell-common : Breaks: gnome-tweak-tool (< 3.21.91) but 3.14.2-2 is to be installed
vlc-bin : Breaks: vlc-nox (< 2.2.6-1~deb9u1) but 2.2.5-1~deb8u1 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
我考虑按照以下方式修复这种情况Ubuntu 中的类似解决方案。也就是尝试将上面三个有问题的包逐一删除。但是gnome-tweak-tool和vlc-nox，显然不能在不删除我的系统的大部分内容（包括aptitude其本身）的情况下删除：
$ sudo apt-get remove gnome-tweak-tool
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
gir1.2-gtk-2.0 gir1.2-javascriptcoregtk-4.0 gir1.2-rb-3.0 gnome-software-common libavcodec-dev libavcodec57 libavformat-dev libavresample-dev libavutil-dev
libavutil55 libboost-atomic-dev libboost-atomic1.55-dev libboost-atomic1.55.0 libboost-atomic1.62.0 libboost-chrono-dev libboost-chrono1.55-dev
libboost-chrono1.55.0 libboost-chrono1.62.0 libboost-context-dev libboost-context1.55-dev libboost-context1.55.0 libboost-coroutine-dev libboost-coroutine1.55-dev
libboost-date-time1.62.0 libboost-dev libboost-exception-dev libboost-exception1.55-dev libboost-filesystem-dev libboost-filesystem1.55-dev
libboost-filesystem1.55.0 libboost-filesystem1.62.0 libboost-graph-dev libboost-graph-parallel1.62.0 libboost-graph1.55-dev libboost-graph1.55.0
libboost-iostreams-dev libboost-iostreams1.55-dev libboost-iostreams1.62.0 libboost-locale-dev libboost-locale1.55-dev libboost-locale1.55.0 libboost-log1.62.0
libboost-math-dev libboost-math1.55-dev libboost-math1.55.0 libboost-mpi-python1.62.0 libboost-mpi1.62.0 libboost-program-options-dev
libboost-program-options1.55-dev libboost-program-options1.55.0 libboost-python-dev libboost-python1.55-dev libboost-python1.55.0 libboost-python1.62.0
libboost-random-dev libboost-random1.55-dev libboost-random1.55.0 libboost-regex-dev libboost-regex1.55-dev libboost-regex1.55.0 libboost-regex1.62.0
libboost-serialization-dev libboost-serialization1.55-dev libboost-serialization1.55.0 libboost-serialization1.62.0 libboost-signals-dev libboost-signals1.55-dev
libboost-signals1.55.0 libboost-system-dev libboost-system1.55-dev libboost-system1.62.0 libboost-test-dev libboost-test1.55-dev libboost-test1.55.0
libboost-test1.62.0 libboost-thread1.62.0 libboost-timer-dev libboost-timer1.55-dev libboost-timer1.55.0 libboost-timer1.62.0 libboost-tools-dev libboost-wave1.62.0
libboost1.55-dev libboost1.55-tools-dev libchromaprint1 libcr0 libcwidget3v5 libdc1394-22-dev libegl1-mesa-drivers libfabric1 libgrilo-0.3-0 libgtk2.0-dev
libhwloc-dev libhwloc-plugins libhwloc5 libibverbs-dev libibverbs1 libinput-bin libinput10 libjavascriptcoregtk-4.0-18 liblz4-1 libnuma-dev libnuma1
libopencv-core-dev libopencv-core2.4v5 libopencv-flann-dev libopencv-flann2.4v5 libopencv-imgproc-dev libopencv-imgproc2.4v5 libopencv-ml-dev libopencv-ml2.4v5
libopencv-photo-dev libopencv-photo2.4v5 libopencv-video-dev libopencv-video2.4v5 libopenjp2-7 libopenmpi-dev libopenmpi2 libpoppler64 libpotrace0
libpsm-infinipath1 libraw1394-dev libraw1394-tools librdmacm1 libsnappy1v5 libsoxr0 libswresample2 libswscale-dev libvpx4 libwebp6 libwebpmux2 libx264-148
libx265-95 libxapian30 libxcb-res0 mpi-default-bin mpi-default-dev opencv-data openmpi-bin openmpi-common
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
appstream aptitude-common at-spi2-core baobab dbus gcc-6-base gedit gedit-common gedit-plugins gir1.2-gtk-3.0 gir1.2-packagekitglib-1.0 gir1.2-pango-1.0
gir1.2-rb-3.0 gparted libapparmor1 libappstream4 libatk-adaptor libatkmm-1.6-1v5 libavcodec57 libavutil55 libboost-date-time1.62.0 libboost-filesystem1.62.0
libboost-iostreams1.62.0 libboost-system1.62.0 libcairomm-1.0-1v5 libchromaprint1 libcwidget3v5 libdbus-1-3 libdbus-1-dev libdrm-amdgpu1 libdrm-dev libegl1-mesa
libegl1-mesa-dev libepoxy-dev libexempi3 libfabric1 libgail-3-0 libgdm1 libglibmm-2.4-1v5 libgraphite2-dev libgrilo-0.3-0 libgspell-1-1 libgspell-1-common
libgtk-3-0 libgtk-3-dev libgtkmm-2.4-1v5 libgtksourceview-3.0-1 libharfbuzz-dev libharfbuzz-gobject0 libharfbuzz-icu0 libharfbuzz0b libicu57 libinput-bin libinput10
libjavascriptcoregtk-4.0-18 liblirc-client0 liblircclient0 liblz4-1 libopencv-core-dev libopencv-core2.4v5 libopencv-flann-dev libopencv-flann2.4v5
libopencv-imgproc-dev libopencv-imgproc2.4v5 libopencv-ml-dev libopencv-ml2.4v5 libopencv-photo-dev libopencv-photo2.4v5 libopencv-video-dev libopencv-video2.4v5
libopenjp2-7 libopenmpi-dev libopenmpi2 libpackagekit-glib2-18 libpango-1.0-0 libpango1.0-0 libpango1.0-dev libpangocairo-1.0-0 libpangoft2-1.0-0 libpangomm-1.4-1v5
libpangoxft-1.0-0 libpeas-1.0-0 libpng16-16 libpoppler64 libpotrace0 libpsm-infinipath1 libpython3-stdlib libpython3.5 libpython3.5-minimal libpython3.5-stdlib
librdmacm1 libreadline7 librhythmbox-core10 libsigc++-2.0-0v5 libsnappy1v5 libsoxr0 libssl1.1 libstdc++6 libstemmer0d libswresample2 libvpx4 libwacom-common
libwacom2 libwayland-bin libwayland-client0 libwayland-cursor0 libwayland-dev libwayland-egl1-mesa libwayland-server0 libwebp6 libwebpmux2 libx11-xcb-dev
libx264-148 libx265-95 libxapian30 libxcb-dri2-0-dev libxcb-dri3-dev libxcb-glx0-dev libxcb-present-dev libxcb-randr0-dev libxcb-shape0-dev libxcb-sync-dev
libxcb-xfixes0-dev libxshmfence-dev libxxf86vm-dev libyaml-0-2 light-locker openmpi-bin openmpi-common powertop python3 python3-brlapi python3-cairo python3-dbus
python3-gi python3-gi-cairo python3-markupsafe python3-minimal python3.5 python3.5-minimal rhythmbox rhythmbox-data rhythmbox-plugin-cdrecorder task-desktop
task-english task-laptop task-xfce-desktop tasksel tasksel-data udisks2 wayland-protocols x11proto-dri2-dev x11proto-gl-dev x11proto-xf86vidmode-dev
Suggested packages:
xfsprogs reiserfsprogs reiser4progs jfsutils mtools kpartx dmraid gpart libcwidget-dev grilo-plugins-0.3 libgtk-3-doc lirc openmpi-doc libpango1.0-doc xapian-tools
gfortran cpufrequtils laptop-mode-tools python3-doc python3-tk python3-venv python-dbus-doc python3-dbus-dbg python3.5-venv python3.5-doc binfmt-support
gnome-codec-install btrfs-progs btrfs-tools cryptsetup-bin mdadm
Recommended packages:
libwacom-bin libreoffice-gtk2 exfat-utils
The following packages will be REMOVED:
aptitude cheese empathy evolution evolution-data-server evolution-plugins gdebi-core gdm3 gnome gnome-contacts gnome-control-center gnome-core gnome-packagekit
gnome-packagekit-session gnome-session gnome-shell gnome-shell-extension-weather gnome-shell-extensions gnome-system-monitor gnome-tweak-tool gnome-video-effects
gstreamer1.0-plugins-bad inkscape libatkmm-1.6-1 libboost-all-dev libboost-date-time-dev libboost-date-time1.55-dev libboost-date-time1.55.0
libboost-graph-parallel-dev libboost-graph-parallel1.55-dev libboost-graph-parallel1.55.0 libboost-log-dev libboost-log1.55-dev libboost-log1.55.0 libboost-mpi-dev
libboost-mpi-python-dev libboost-mpi-python1.55-dev libboost-mpi-python1.55.0 libboost-mpi1.55-dev libboost-mpi1.55.0 libboost-thread-dev libboost-thread1.55-dev
libboost-wave-dev libboost-wave1.55-dev libboost-wave1.55.0 libcairomm-1.0-1 libcheese-gtk23 libcheese7 libcmis-0.4-4 libcv-dev libcvaux-dev libcwidget3
libebook-1.2-14 libebook-contacts-1.2-0 libedata-book-1.2-20 libevolution libfarstream-0.2-2 libfolks-eds25 libglibmm-2.4-1c2a libgtkmm-2.4-1c2a libgtkmm-3.0-1
libhighgui-dev libopencv-calib3d-dev libopencv-calib3d2.4 libopencv-contrib-dev libopencv-contrib2.4 libopencv-core2.4 libopencv-dev libopencv-features2d-dev
libopencv-features2d2.4 libopencv-flann2.4 libopencv-gpu-dev libopencv-gpu2.4 libopencv-highgui-dev libopencv-highgui2.4 libopencv-imgproc2.4 libopencv-legacy-dev
libopencv-legacy2.4 libopencv-ml2.4 libopencv-objdetect-dev libopencv-objdetect2.4 libopencv-ocl-dev libopencv-ocl2.4 libopencv-photo2.4 libopencv-stitching-dev
libopencv-stitching2.4 libopencv-superres-dev libopencv-superres2.4 libopencv-ts-dev libopencv-ts2.4 libopencv-video2.4 libopencv-videostab-dev
libopencv-videostab2.4 libopencv2.4-java libopencv2.4-jni libopenmpi1.6 libpangomm-1.4-1 libphonenumber6 libreoffice libreoffice-avmedia-backend-gstreamer
libreoffice-base libreoffice-base-core libreoffice-base-drivers libreoffice-calc libreoffice-core libreoffice-draw libreoffice-evolution libreoffice-gnome
libreoffice-gtk libreoffice-help-en-us libreoffice-impress libreoffice-math libreoffice-report-builder-bin libreoffice-sdbc-firebird libreoffice-sdbc-hsqldb
libreoffice-writer libsigc++-2.0-0c2a libtelepathy-farstream3 mythes-en-us packagekit packagekit-tools python-opencv python3-apt python3-pil
python3-software-properties python3-uno rhythmbox-plugins software-properties-common task-gnome-desktop totem totem-plugins unattended-upgrades unoconv
The following NEW packages will be installed:
appstream gcc-6-base libapparmor1 libappstream4 libatkmm-1.6-1v5 libavcodec57 libavutil55 libboost-date-time1.62.0 libboost-filesystem1.62.0
libboost-iostreams1.62.0 libboost-system1.62.0 libcairomm-1.0-1v5 libchromaprint1 libcwidget3v5 libdrm-amdgpu1 libdrm-dev libegl1-mesa-dev libepoxy-dev libfabric1
libglibmm-2.4-1v5 libgraphite2-dev libgrilo-0.3-0 libgspell-1-1 libgspell-1-common libgtkmm-2.4-1v5 libicu57 libinput-bin libinput10 libjavascriptcoregtk-4.0-18
liblirc-client0 liblz4-1 libopencv-core2.4v5 libopencv-flann2.4v5 libopencv-imgproc2.4v5 libopencv-ml2.4v5 libopencv-photo2.4v5 libopencv-video2.4v5 libopenjp2-7
libopenmpi2 libpangomm-1.4-1v5 libpng16-16 libpoppler64 libpotrace0 libpsm-infinipath1 libpython3.5 libpython3.5-minimal libpython3.5-stdlib librdmacm1 libreadline7
librhythmbox-core10 libsigc++-2.0-0v5 libsnappy1v5 libsoxr0 libssl1.1 libstemmer0d libswresample2 libvpx4 libwayland-bin libwebp6 libwebpmux2 libx11-xcb-dev
libx264-148 libx265-95 libxapian30 libxcb-dri2-0-dev libxcb-dri3-dev libxcb-glx0-dev libxcb-present-dev libxcb-randr0-dev libxcb-shape0-dev libxcb-sync-dev
libxcb-xfixes0-dev libxshmfence-dev libxxf86vm-dev libyaml-0-2 light-locker python3.5 python3.5-minimal wayland-protocols x11proto-dri2-dev x11proto-gl-dev
x11proto-xf86vidmode-dev
The following packages will be upgraded:
aptitude-common at-spi2-core baobab dbus gedit gedit-common gedit-plugins gir1.2-gtk-3.0 gir1.2-packagekitglib-1.0 gir1.2-pango-1.0 gir1.2-rb-3.0 gparted
libatk-adaptor libdbus-1-3 libdbus-1-dev libegl1-mesa libexempi3 libgail-3-0 libgdm1 libgtk-3-0 libgtk-3-dev libgtksourceview-3.0-1 libharfbuzz-dev
libharfbuzz-gobject0 libharfbuzz-icu0 libharfbuzz0b liblircclient0 libopencv-core-dev libopencv-flann-dev libopencv-imgproc-dev libopencv-ml-dev libopencv-photo-dev
libopencv-video-dev libopenmpi-dev libpackagekit-glib2-18 libpango-1.0-0 libpango1.0-0 libpango1.0-dev libpangocairo-1.0-0 libpangoft2-1.0-0 libpangoxft-1.0-0
libpeas-1.0-0 libpython3-stdlib libstdc++6 libwacom-common libwacom2 libwayland-client0 libwayland-cursor0 libwayland-dev libwayland-egl1-mesa libwayland-server0
openmpi-bin openmpi-common powertop python3 python3-brlapi python3-cairo python3-dbus python3-gi python3-gi-cairo python3-markupsafe python3-minimal rhythmbox
rhythmbox-data rhythmbox-plugin-cdrecorder task-desktop task-english task-laptop task-xfce-desktop tasksel tasksel-data udisks2
72 upgraded, 82 newly installed, 133 to remove and 616 not upgraded.
Need to get 68.0 MB of archives.
After this operation, 360 MB disk space will be freed.
Do you want to continue? [Y/n]
有人可以帮我理解这一点吗？我还不会执行该操作。
我应该顺便说一下，我的 apt 来源并不是普通的：大约一周前，我关注了这个服务器故障帖子启用几个不稳定的软件包。然而，自此配置到位以来，上述 dist-upgrade 错误中的任何软件包（exim4-daemon-light、gnome-tweak-tool或）均未安装。vlc-nox
以下是我对 /etc/aptsources.list 和固定首选项文件所做的每项更改（删除了注释行）：
固定偏好
/etc/apt/preferences.d$ ls
experimental.pref security.pref stable.pref testing.pref unstable.pref
/etc/apt/preferences.d$ cat *
Package: *
Pin: release a=experimental
Pin-Priority: 1
Package: *
Pin: release l=Debian-Security
Pin-Priority: 1000
Package: *
Pin: release a=stable
Pin-Priority: 900
Package: *
Pin: release a=testing
Pin-Priority: 750
Package: *
Pin: release a=unstable
Pin-Priority: 50
来源.list
deb http://ftp.us.debian.org/debian/ jessie main
deb-src http://ftp.us.debian.org/debian/ jessie main
deb http://security.debian.org/ jessie/updates main
deb-src http://security.debian.org/ jessie/updates main
deb http://ftp.us.debian.org/debian/ jessie-updates main
deb-src http://ftp.us.debian.org/debian/ jessie-updates main
deb [arch=amd64] https://download.docker.com/linux/debian jessie stable
来源.list.d/dropbox.list
deb [arch=i386,amd64] http://linux.dropbox.com/debian jessie main
来源.list.d/实验.列表
deb http://mirror.steadfast.net/debian/ experimental main contrib non-free
deb-src http://mirror.steadfast.net/debian/ experimental main contrib non-free
deb http://ftp.us.debian.org/debian/ experimental main contrib non-free
deb-src http://ftp.us.debian.org/debian/ experimental main contrib non-free
resources.list.d/google-chrome.list
deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main
来源.list.d/security.list
deb http://security.debian.org/ stable/updates main contrib non-free
deb http://security.debian.org/ testing/updates main contrib non-free
来源.list.d/来源.list
# Lines commented out, due to causing apt-get upgrade problems
# conflicting with other files in this directory.
# Left here for archiving.
#
#
#
# Debian packages for stable
# deb http://ftp.us.debian.org/debian/ stable main contrib
# Uncomment the deb-src line if you want 'apt-get source'
# to work with most packages.
# deb-src http://ftp.us.debian.org/debian/ stable main contrib
# Security updates for stable
# deb http://security.debian.org/ stable/updates main contrib
来源.list.d/stable.list
deb http://mirror.steadfast.net/debian/ stable main contrib non-free
deb-src http://mirror.steadfast.net/debian/ stable main contrib non-free
deb http://ftp.us.debian.org/debian/ stable main contrib non-free
deb-src http://ftp.us.debian.org/debian/ stable main contrib non-free
来源.list.d/testing.list
deb http://mirror.steadfast.net/debian/ testing main contrib non-free
deb-src http://mirror.steadfast.net/debian/ testing main contrib non-free
deb http://ftp.us.debian.org/debian/ testing main contrib non-free
deb-src http://ftp.us.debian.org/debian/ testing main contrib non-free
resources.list.d/thomas_tsai-ubuntu-tuxboot-jessie.list
# (empty)
来源.list.d/unstable.list
deb http://mirror.steadfast.net/debian/ unstable main contrib non-free
deb-src http://mirror.steadfast.net/debian/ unstable main contrib non-free
deb http://ftp.us.debian.org/debian/ unstable main contrib non-free
deb-src http://ftp.us.debian.org/debian/ unstable main contrib non-free
这是我的apt-cache policy输出：
$ sudo apt-cache policy
Package files:
100 /var/lib/dpkg/status
release a=now
500 http://ftp.us.debian.org/debian/ unstable/non-free Translation-en
500 http://ftp.us.debian.org/debian/ unstable/main Translation-en
500 http://ftp.us.debian.org/debian/ unstable/contrib Translation-en
50 http://ftp.us.debian.org/debian/ unstable/non-free amd64 Packages
release o=Debian,a=unstable,n=sid,l=Debian,c=non-free
origin ftp.us.debian.org
50 http://ftp.us.debian.org/debian/ unstable/contrib amd64 Packages
release o=Debian,a=unstable,n=sid,l=Debian,c=contrib
origin ftp.us.debian.org
50 http://ftp.us.debian.org/debian/ unstable/main amd64 Packages
release o=Debian,a=unstable,n=sid,l=Debian,c=main
origin ftp.us.debian.org
500 http://mirror.steadfast.net/debian/ unstable/non-free Translation-en
500 http://mirror.steadfast.net/debian/ unstable/main Translation-en
500 http://mirror.steadfast.net/debian/ unstable/contrib Translation-en
50 http://mirror.steadfast.net/debian/ unstable/non-free amd64 Packages
release o=Debian,a=unstable,n=sid,l=Debian,c=non-free
origin mirror.steadfast.net
50 http://mirror.steadfast.net/debian/ unstable/contrib amd64 Packages
release o=Debian,a=unstable,n=sid,l=Debian,c=contrib
origin mirror.steadfast.net
50 http://mirror.steadfast.net/debian/ unstable/main amd64 Packages
release o=Debian,a=unstable,n=sid,l=Debian,c=main
origin mirror.steadfast.net
500 http://ftp.us.debian.org/debian/ testing/non-free Translation-en
500 http://ftp.us.debian.org/debian/ testing/main Translation-en
500 http://ftp.us.debian.org/debian/ testing/contrib Translation-en
750 http://ftp.us.debian.org/debian/ testing/non-free amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian,c=non-free
origin ftp.us.debian.org
750 http://ftp.us.debian.org/debian/ testing/contrib amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian,c=contrib
origin ftp.us.debian.org
750 http://ftp.us.debian.org/debian/ testing/main amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian,c=main
origin ftp.us.debian.org
500 http://mirror.steadfast.net/debian/ testing/non-free Translation-en
500 http://mirror.steadfast.net/debian/ testing/main Translation-en
500 http://mirror.steadfast.net/debian/ testing/contrib Translation-en
750 http://mirror.steadfast.net/debian/ testing/non-free amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian,c=non-free
origin mirror.steadfast.net
750 http://mirror.steadfast.net/debian/ testing/contrib amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian,c=contrib
origin mirror.steadfast.net
750 http://mirror.steadfast.net/debian/ testing/main amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian,c=main
origin mirror.steadfast.net
500 http://ftp.us.debian.org/debian/ stable/non-free Translation-en
500 http://ftp.us.debian.org/debian/ stable/main Translation-en
500 http://ftp.us.debian.org/debian/ stable/contrib Translation-en
900 http://ftp.us.debian.org/debian/ stable/non-free amd64 Packages
release v=9.0,o=Debian,a=stable,n=stretch,l=Debian,c=non-free
origin ftp.us.debian.org
900 http://ftp.us.debian.org/debian/ stable/contrib amd64 Packages
release v=9.0,o=Debian,a=stable,n=stretch,l=Debian,c=contrib
origin ftp.us.debian.org
900 http://ftp.us.debian.org/debian/ stable/main amd64 Packages
release v=9.0,o=Debian,a=stable,n=stretch,l=Debian,c=main
origin ftp.us.debian.org
500 http://mirror.steadfast.net/debian/ stable/non-free Translation-en
500 http://mirror.steadfast.net/debian/ stable/main Translation-en
500 http://mirror.steadfast.net/debian/ stable/contrib Translation-en
900 http://mirror.steadfast.net/debian/ stable/non-free amd64 Packages
release v=9.0,o=Debian,a=stable,n=stretch,l=Debian,c=non-free
origin mirror.steadfast.net
900 http://mirror.steadfast.net/debian/ stable/contrib amd64 Packages
release v=9.0,o=Debian,a=stable,n=stretch,l=Debian,c=contrib
origin mirror.steadfast.net
900 http://mirror.steadfast.net/debian/ stable/main amd64 Packages
release v=9.0,o=Debian,a=stable,n=stretch,l=Debian,c=main
origin mirror.steadfast.net
500 http://security.debian.org/ testing/updates/non-free Translation-en
500 http://security.debian.org/ testing/updates/main Translation-en
500 http://security.debian.org/ testing/updates/contrib Translation-en
1000 http://security.debian.org/ testing/updates/non-free amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian-Security,c=non-free
origin security.debian.org
1000 http://security.debian.org/ testing/updates/contrib amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian-Security,c=contrib
origin security.debian.org
1000 http://security.debian.org/ testing/updates/main amd64 Packages
release o=Debian,a=testing,n=buster,l=Debian-Security,c=main
origin security.debian.org
500 http://security.debian.org/ stable/updates/non-free Translation-en
500 http://security.debian.org/ stable/updates/main Translation-en
500 http://security.debian.org/ stable/updates/contrib Translation-en
1000 http://security.debian.org/ stable/updates/non-free amd64 Packages
release v=9,o=Debian,a=stable,n=stretch,l=Debian-Security,c=non-free
origin security.debian.org
1000 http://security.debian.org/ stable/updates/contrib amd64 Packages
release v=9,o=Debian,a=stable,n=stretch,l=Debian-Security,c=contrib
origin security.debian.org
1000 http://security.debian.org/ stable/updates/main amd64 Packages
release v=9,o=Debian,a=stable,n=stretch,l=Debian-Security,c=main
origin security.debian.org
900 http://dl.google.com/linux/chrome/deb/ stable/main amd64 Packages
release v=1.0,o=Google, Inc.,a=stable,n=stable,l=Google,c=main
origin dl.google.com
500 http://ftp.us.debian.org/debian/ experimental/non-free Translation-en
500 http://ftp.us.debian.org/debian/ experimental/main Translation-en
500 http://ftp.us.debian.org/debian/ experimental/contrib Translation-en
1 http://ftp.us.debian.org/debian/ experimental/non-free amd64 Packages
release o=Debian,a=experimental,n=experimental,l=Debian,c=non-free
origin ftp.us.debian.org
1 http://ftp.us.debian.org/debian/ experimental/contrib amd64 Packages
release o=Debian,a=experimental,n=experimental,l=Debian,c=contrib
origin ftp.us.debian.org
1 http://ftp.us.debian.org/debian/ experimental/main amd64 Packages
release o=Debian,a=experimental,n=experimental,l=Debian,c=main
origin ftp.us.debian.org
500 http://mirror.steadfast.net/debian/ experimental/non-free Translation-en
500 http://mirror.steadfast.net/debian/ experimental/main Translation-en
500 http://mirror.steadfast.net/debian/ experimental/contrib Translation-en
1 http://mirror.steadfast.net/debian/ experimental/non-free amd64 Packages
release o=Debian,a=experimental,n=experimental,l=Debian,c=non-free
origin mirror.steadfast.net
1 http://mirror.steadfast.net/debian/ experimental/contrib amd64 Packages
release o=Debian,a=experimental,n=experimental,l=Debian,c=contrib
origin mirror.steadfast.net
1 http://mirror.steadfast.net/debian/ experimental/main amd64 Packages
release o=Debian,a=experimental,n=experimental,l=Debian,c=main
origin mirror.steadfast.net
500 http://linux.dropbox.com/debian/ jessie/main i386 Packages
release o=Dropbox.com,a=jessie,n=jessie,l=Dropbox Debian Repository,c=main
origin linux.dropbox.com
500 http://linux.dropbox.com/debian/ jessie/main amd64 Packages
release o=Dropbox.com,a=jessie,n=jessie,l=Dropbox Debian Repository,c=main
origin linux.dropbox.com
500 https://download.docker.com/linux/debian/ jessie/stable amd64 Packages
release o=Docker,a=jessie,l=Docker CE,c=stable
origin download.docker.com
500 http://ftp.us.debian.org/debian/ jessie-updates/main Translation-en
500 http://ftp.us.debian.org/debian/ jessie-updates/main amd64 Packages
release o=Debian,a=oldstable-updates,n=jessie-updates,l=Debian,c=main
origin ftp.us.debian.org
500 http://security.debian.org/ jessie/updates/main Translation-en
1000 http://security.debian.org/ jessie/updates/main amd64 Packages
release v=8,o=Debian,a=oldstable,n=jessie,l=Debian-Security,c=main
origin security.debian.org
500 http://ftp.us.debian.org/debian/ jessie/main Translation-en
500 http://ftp.us.debian.org/debian/ jessie/main amd64 Packages
release v=8.8,o=Debian,a=oldstable,n=jessie,l=Debian,c=main
origin ftp.us.debian.org
Pinned packages:
答案1
哦，哇。这是 Debian 存储库的一个严重混合体......
您今天发布了 Debian 9。由于您按版本类型而不是代码名称（Jessie 除外）引用套件，因此您的最新版本dist-upgrade尝试升级到 Stretch，但 Jessie 中安全升级的更高优先级导致了冲突。
您需要选择一个版本并坚持使用；如果您确实想从其他版本中提取软件包，则需要正确设置优先级。我建议恢复 Jessie 的现状，看看是否可以dist-upgrade完成：
- 禁用
experimental.list,testing.list和unstable.list; - 在 中
security.list，替换stable为jessie并删除该testing行； - 删除您的 PIN 首选项。