我运行了命令
sudo apt-get install & sudo apt-get dist-upgrade -d
它给出以下输出
nitesh@nitesh:~$ sudo apt-get upgrade
[sudo] password for nitesh:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages have been kept back:
checkbox-qt chromium-browser chromium-browser-l10n dconf-editor easystroke
firmware-b43-installer gambas3 gambas3-gb-opengl gambas3-gb-opengl-glsl
gambas3-gb-opengl-glu gambas3-gb-pdf gambas3-gb-sdl gambas3-gb-sdl-sound
gnome-commander gnome-icon-theme-full gnome-online-accounts gnome-panel
gnome-panel-data gnome-session-flashback gstreamer0.10-plugins-ugly
gstreamer1.0-libav gstreamer1.0-plugins-ugly gtk2-engines-pixbuf katepart
kde-runtime kdelibs5-plugins kget libaacs0 libcairo-perl libchromaprint0
libclutter-gst-1.0-0 libcodeblocks0 libdate-calc-xs-perl
libffmpegthumbnailer4 libfftw3-3 libgcr-3-1 libglib-perl libgtk2-perl
libkactivities-bin libkactivities-models1 libkactivities6
libkatepartinterfaces4 libkonq-common libkonq5abi1 libktorrent5
libkxmlrpcclient4 libnepomukcleaner4 libnepomukcore4abi1 libnepomukwidgets4
libnspr4-0d libpango-perl libqapt2 libschroedinger-1.0-0 libsdl-image1.2
libspandsp2 libssh2-1 libwxgtk2.8-0 linux-generic linux-headers-generic
linux-headers-generic-pae linux-image-generic nepomuk-core-runtime
ntrack-module-libnl-0 plasma-scriptengine-javascript python-imaging-compat
python-pyexiv2 python3-pyatspi2 python3-software-properties python3-virtkey
software-properties-common software-properties-gtk synaptic unity
unity-services xserver-xephyr
0 upgraded, 0 newly installed, 0 to remove and 75 not upgraded.
nitesh@nitesh:~$
现在我该怎么办，请帮帮我。
答案1
跑步，
$ sudo apt-get update && sudo apt-get dist-upgrade
单击开始菜单并输入“update-manager -d”，然后选择-> update mannager -d -> 检查更新，您将获得
点击确定进行升级，升级完成后，重启系统。
答案2
sudo do-release-upgrade实际上是推荐的命令！试试看。