我尝试从 14.02 升级到最新可用版本。我冻结了安装进度，系统崩溃了。许多重要的软件包（包括所有软件包apt）都依赖于损坏的libc6和libstdc++。在尝试手动重新安装和重新编译所有依赖于这些软件包的库后，我最终陷入了以下依赖地狱。
# dpkg --configure -a
dpkg: error processing package click (--configure):
subprocess installed post-installation script was interrupted
dpkg: dependency problems prevent configuration of libstdc++6:amd64:
libstdc++6:amd64 depends on gcc-5-base (= 5.3.1-8ubuntu2); however:
Version of gcc-5-base:amd64 on system is 5.3.0-3ubuntu1~14.04.
dpkg: error processing package libstdc++6:amd64 (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libstdc++6:i386:
libstdc++6:i386 depends on gcc-5-base (= 5.3.1-8ubuntu2); however:
Version of gcc-5-base:i386 on system is 5.3.0-3ubuntu1~14.04.
dpkg: error processing package libstdc++6:i386 (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of ubuntu-system-settings:
ubuntu-system-settings depends on libstdc++6 (>= 5.2); however:
Package libstdc++6:amd64 is not configured yet.
ubuntu-system-settings depends on click | ubuntu-snappy-cli; however:
Package click is not configured yet.
Package ubuntu-snappy-cli is not installed.
dpkg: error processing package ubuntu-system-settings (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of ubuntu-system-settings-online-accounts:
ubuntu-system-settings-online-accounts depends on libstdc++6 (>= 4.1.1); however:
Package libstdc++6:amd64 is not configured yet.
ubuntu-system-settings-online-accounts depends on ubuntu-system-settings; however:
Package ubuntu-system-settings is not configured yet.
dpkg: error processing package ubuntu-system-settings-online-accounts (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of apt-transport-https:
apt-transport-https depends on libstdc++6 (>= 5.2); however:
Package libstdc++6:amd64 is not configured yet.
dpkg: error processing package apt-transport-https (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of apt-utils:
apt-utils depends on libstdc++6 (>= 5.2); however:
Package libstdc++6:amd64 is not configured yet.
dpkg: error processing package apt-utils (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libapt-inst1.7:amd64:
libapt-inst1.7:amd64 depends on libstdc++6 (>= 5.2); however:
Package libstdc++6:amd64 is not configured yet.
dpkg: error processing package libapt-inst1.7:amd64 (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libapt-pkg4.16:amd64:
libapt-pkg4.16:amd64 depends on libstdc++6 (>= 5.2); however:
Package libstdc++6:amd64 is not configured yet.
dpkg: error processing package libapt-pkg4.16:amd64 (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libapt-pkg4.16:i386:
libapt-pkg4.16:i386 depends on libstdc++6 (>= 5.2); however:
Package libstdc++6:i386 is not configured yet.
dpkg: error processing package libapt-pkg4.16:i386 (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of apt:
apt depends on libapt-pkg4.16 (>= 1.0.10.2ubuntu1); however:
Package libapt-pkg4.16:amd64 is not configured yet.
apt depends on libstdc++6 (>= 5.2); however:
Package libstdc++6:amd64 is not configured yet.
dpkg: error processing package apt (--configure):
dependency problems - leaving unconfigured
resolvconf: Error: /run/resolvconf/interface either does not exist or is not a directory
dpkg: error processing package resolvconf (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
click
libstdc++6:amd64
libstdc++6:i386
ubuntu-system-settings
ubuntu-system-settings-online-accounts
apt-transport-https
apt-utils
libapt-inst1.7:amd64
libapt-pkg4.16:amd64
libapt-pkg4.16:i386
apt
resolvconf
# apt-get -f upgrade
Reading package lists...
Building dependency tree...
Reading state information...
Correcting dependencies... failed.
The following packages have unmet dependencies:
libapt-inst1.5 : Depends: libapt-pkg4.12 (>= 0.8.16~exp9) but it is not installable
libstdc++6 : Depends: gcc-5-base (= 5.3.1-8ubuntu2) but 5.3.0-3ubuntu1~14.04 is installed
libstdc++6:i386 : Depends: gcc-5-base:i386 (= 5.3.1-8ubuntu2) but 5.3.0-3ubuntu1~14.04 is installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
E: Unable to correct dependencies
现在我尝试从 更新gcc-5-base 5.3.0到5.3.1但最终发现这些包的依赖关系有很多损坏：
Reading package lists...
Building dependency tree...
Reading state information...
Correcting dependencies... failed.
The following packages have unmet dependencies:
lib32gcc1 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
lib32stdc++6 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libapt-inst1.5 : Depends: libapt-pkg4.12 (>= 0.8.16~exp9) but it is not installable
libatomic1 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libcilkrts5 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libgcc1 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libgcc1:i386 : Depends: gcc-5-base:i386 (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libgfortran3 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libgomp1 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libitm1 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
liblsan0 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libquadmath0 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libtsan0 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed
libubsan0 : Depends: gcc-5-base (= 5.3.0-3ubuntu1~14.04) but 5.3.1-8ubuntu2 is installed