我有一个双启动系统，新的 ubuntu LTS 18.04 将于下个月发布，所以我想将我的系统从 14.04 升级到 18.04。升级的最佳方式是先升级到 16.04，然后再升级到 18.04。今天我将系统从 14.04 升级到 16.04，一切似乎都运行良好，但在安装更新的过程中，我的系统完全冻结了，我被迫重新启动系统。
重启后，当我进入 ubuntu 时，它卡在了启动界面
之后，我advance option for ubuntu > recovery mode使用用户名和密码在终端登录系统。首先，我尝试了lsb_releas -a命令，它确认我有 ubuntu 16.04
Distributor ID: Ubuntu
Description: Ubuntu 16.04.x LTS
Release: 16.04
Codename: xenial
然后我做了一个apt-get update但它返回了一个relocation error我使用它解决了这个答案（必须安装 amd6 和 i386 文件）通过使用第二个 Windows 操作系统下载文件。然后我使用ping -c 1 google.com返回的互联网连接检查了我的互联网连接Unknown host error。没有互联网，我无法解决或下载我的 ubuntu 中的任何文件。如果我在这个终端上连接到网络，只有 ubuntu 16.04，我肯定可以解决我的其他问题。有什么想法如何解决这个问题吗？
这次失败后，我决定不升级到 18.04。我现在想正确安装 16.04
Networkmanger is not runningPS 我不记得我做了什么，但我在我的 ubuntu 16.04 中看到了错误
如果它有帮助我的rfkill list all外观类似于这个
0: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
2: dell-wwan: Wireless WAN
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
编辑
由于某些情况，我无法进行全新安装，这迫使我纠正升级问题。因此，我能够通过执行以下命令恢复使用新 16.04 的桌面和互联网
sudo dpkg --configure -a
#kept all intemediary prompts in default option ie "N"
#After this restart the systemn
然后我重新启动了系统，这恢复了我的互联网连接，并且在恢复模式终端中
sudo apt-get update
sudo apt-get upgrade #not working shows error
sudo apt-get install -f #not working shows error
sudo dpkg --configure -a
现在再次重新启动它，它恢复了我的桌面，但现在我的apt-get桌面不工作了（互联网正常）。
$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
click : Depends: python3-click (= 0.4.21.1ubuntu0.2) but 6.2-2ubuntu1 is installed
click-apparmor : Depends: python3-apparmor-click (= 0.2ubuntu1) but 0.3.13.1 is installed
cpp-5 : Depends: gcc-5-base (= 5.4.1-2ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.9 is installed
g++-5 : Depends: gcc-5-base (= 5.4.1-2ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.9 is installed
gcc-5 : Depends: gcc-5-base (= 5.4.1-2ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.9 is installed
libasan2 : Depends: gcc-5-base (= 5.4.1-2ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.9 is installed
libavformat-dev : Depends: libavcodec-dev (= 7:2.8.11-0ubuntu0.16.04.1) but 6:9.20-0ubuntu0.14.04.2+fdkaac is installed
Depends: libavutil-dev (= 7:2.8.11-0ubuntu0.16.04.1) but 6:9.20-0ubuntu0.14.04.2+fdkaac is installed
Depends: libswresample-dev (= 7:2.8.11-0ubuntu0.16.04.1) but it is not installed
libboost-context-dev : Depends: libboost-context1.54-dev but it is not installable
libboost-dev : Depends: libboost1.54-dev but it is not installable
libboost-serialization-dev : Depends: libboost-serialization1.54-dev but it is not installable
libgcc-5-dev : Depends: gcc-5-base (= 5.4.1-2ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.9 is installed
libmpx0 : Depends: gcc-5-base (= 5.4.1-2ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.9 is installed
libproxy-tools : Depends: libproxy1 (>= 0.4.7) but it is not installable
libproxy1-plugin-gsettings : Depends: libproxy1 (= 0.4.11-0ubuntu4) but it is not installable
libproxy1-plugin-networkmanager : Depends: libproxy1 (= 0.4.11-0ubuntu4) but it is not installable
libstdc++-5-dev : Depends: gcc-5-base (= 5.4.1-2ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.9 is installed
Depends: libstdc++6 (>= 5.4.1-2ubuntu1~14.04) but 5.4.0-6ubuntu1~16.04.9 is installed
libswscale-dev : Depends: libavutil-dev (= 7:2.8.11-0ubuntu0.16.04.1) but 6:9.20-0ubuntu0.14.04.2+fdkaac is installed
libwebkitgtk-1.0-0 : Depends: libjavascriptcoregtk-1.0-0 (= 2.4.11-0ubuntu0.1) but 2.4.10-0ubuntu0.14.04.1 is installed
Depends: libwebkitgtk-1.0-common (>= 2.4.11) but 2.4.10-0ubuntu0.14.04.1 is installed
python-kivy : Depends: python-gst-1.0 but it is not installed
Depends: libsdl2-image-2.0-0 (>= 2.0.0) but it is not installed
Depends: libsdl2-mixer-2.0-0 (>= 2.0.0) but it is not installed
Depends: libsdl2-ttf-2.0-0 (>= 2.0.0) but it is not installed
E: Unmet dependencies. Try using -f.
我再次这样做，sudo dpkg --configure -a结果显示了这些错误
Errors were encountered while processing:
python-kivy
libswscale-dev:amd64
libwebkitgtk-1.0-0:amd64
libavformat-dev:amd64
libunity-scopes1.0:amd64
unity-scope-mediascanner2
unity-scope-scopes
似乎我有不兼容的 python-kivy，所以我试图清除 pyton-kivy
sudo apt-get purge python-kivy
sudo apt-get remove python-kivy
但又显示Unmet dependencies错误。我的apt-get电脑根本无法工作，无法安装或卸载应用程序。有办法解决这个问题吗
答案1
在我升级失败后，我成功升级到了 16.04。我解决了unmet dependency错误通过更改服务器找到更好的解决方案。我通过为每个错误找到解决方案来解决其他问题。最好在互联网上搜索这些错误并使用推荐的解决方案。我还手动下载了包文件并使用进行安装dpkg。这些是帮助我解决问题的重要命令
#(Not in any order)
sudo dpkg --configure -a #this is an important command
sudo apt-get update
sudo apt-get install -f #this is an important command
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get autoremove
sudo apt-get autoclean
sudo dpkg -i <package name>
#this last one I used after solving my desktop and internet problems
sudo update-manager -d