我根本无法启动任何应用程序。尝试打开文档查看器、系统监视器、事实上的网络和常规设置也根本无法打开。我尝试了以下故障排除，但没有成功，请提出建议。
sudo apt-get update
sudo apt-get install unity
执行成功，没有任何错误
原始代码：
$ sudo apt-get install --reinstall ubuntu-desktop
Reading package lists... Done
Building dependency tree
Reading state information... Done
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:
ubuntu-desktop : Depends: gnome-control-center but it is not going to be installed
Depends: language-selector-gnome but it is not going to be installed
Depends: software-properties-gtk but it is not going to be installed
Depends: ubuntu-drivers-common but it is not going to be installed
Depends: ubuntu-release-upgrader-gtk but it is not going to be installed
Depends: update-manager but it is not going to be installed
Depends: xorg but it is not going to be installed
Recommends: apport-gtk but it is not going to be installed
Recommends: gnome-software-plugin-snap but it is not going to be installed
Recommends: hplip but it is not going to be installed
Recommends: libreoffice-calc but it is not going to be installed
Recommends: libreoffice-gnome but it is not going to be installed
Recommends: libreoffice-impress but it is not going to be installed
Recommends: libreoffice-math but it is not going to be installed
Recommends: libreoffice-ogltrans but it is not going to be installed
Recommends: nautilus-share but it is not going to be installed
Recommends: ubuntu-software but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
然后我恢复了存储库列表并清除了 AppStream
sudo apt-get purge appstream
然后sudo apt-get install ubuntu-desktop network-manager-gnome software-properties-gtk evince indicator-bluetooth结束于：
$ sudo apt-get install ubuntu-desktop network-manager-gnome software-properties-gtk evince indicator-bluetooth
Reading package lists... Done
Building dependency tree
Reading state information... Done
indicator-bluetooth is already the newest version (0.0.6+17.10.20170605-0ubuntu3).
indicator-bluetooth set to manually installed.
evince is already the newest version (3.28.4-0ubuntu1.2).
network-manager-gnome is already the newest version (1.8.10-2ubuntu2).
network-manager-gnome set to manually installed.
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:
software-properties-gtk : Depends: python3-software-properties (= 0.96.24.32.11) but it is not going to be installed
Depends: python3-aptdaemon.gtk3widgets but it is not going to be installed
Depends: software-properties-common but it is not going to be installed
Depends: ubuntu-drivers-common (>= 1:0.2.75) but it is not going to be installed
ubuntu-desktop : Depends: gnome-control-center but it is not going to be installed
Depends: language-selector-gnome but it is not going to be installed
Depends: ubuntu-drivers-common but it is not going to be installed
Depends: ubuntu-release-upgrader-gtk but it is not going to be installed
Depends: update-manager but it is not going to be installed
Depends: xorg but it is not going to be installed
Recommends: apport-gtk but it is not going to be installed
Recommends: hplip but it is not going to be installed
Recommends: libreoffice-calc but it is not going to be installed
Recommends: libreoffice-gnome but it is not going to be installed
Recommends: libreoffice-impress but it is not going to be installed
Recommends: libreoffice-math but it is not going to be installed
Recommends: libreoffice-ogltrans but it is not going to be installed
Recommends: nautilus-share but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
检查存储库：
$ grep -r ^deb /etc/apt/ --include="*.list"
/etc/apt/sources.list.d/diesch-ubuntu-testing-bionic.list:deb http://ppa.launchpad.net/diesch/testing/ubuntu bionic main
/etc/apt/sources.list:deb http://archive.ubuntu.com/ubuntu/ bionic main restricted universe multiverse
/etc/apt/sources.list:deb-src http://archive.ubuntu.com/ubuntu/ bionic main restricted universe multiverse
/etc/apt/sources.list:deb http://archive.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
/etc/apt/sources.list:deb http://archive.ubuntu.com/ubuntu/ bionic-updates main restricted universe multiverse
/etc/apt/sources.list:deb http://archive.ubuntu.com/ubuntu/ bionic-proposed main restricted universe multiverse
/etc/apt/sources.list:deb http://archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
/etc/apt/sources.list:deb-src http://archive.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
/etc/apt/sources.list:deb-src http://archive.ubuntu.com/ubuntu/ bionic-updates main restricted universe multiverse
/etc/apt/sources.list:deb-src http://archive.ubuntu.com/ubuntu/ bionic-proposed main restricted universe multiverse
/etc/apt/sources.list:deb-src http://archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
更新 cmd 输出：
$ sudo apt-get update
Hit:1 http://archive.ubuntu.com/ubuntu bionic InRelease
Hit:2 http://ppa.launchpad.net/diesch/testing/ubuntu bionic InRelease
Get:3 http://archive.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Get:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:5 http://archive.ubuntu.com/ubuntu bionic-proposed InRelease [242 kB]
Get:6 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Fetched 494 kB in 3s (160 kB/s)
Reading package lists... Done
输出$ apt-cache policy gnome-control-center
$ apt-cache policy gnome-control-center
gnome-control-center:
Installed: (none)
Candidate: 1:3.28.2-0ubuntu0.18.04.5
Version table:
1:3.28.2-0ubuntu0.18.04.5 500
500 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 Packages
1:3.28.2-0ubuntu0.18.04.4 500
500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
1:3.28.1-0ubuntu1 500
500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Package
$ sudo apt-get install aptitude
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
coinor-libcbc3 coinor-libcgl1 coinor-libclp1 coinor-libcoinutils3v5 coinor-libosi1v5 docbook-xml git-man javascript-common
libcairo1.10-cil liberror-perl libglib3.0-cil libhwloc-plugins libhwloc5 libjs-xmlextras liblinear3 liblmdb0 libmono-2.0-1 libmono-2.0-dev
libmono-accessibility4.0-cil libmono-cecil-private-cil libmono-cil-dev libmono-codecontracts4.0-cil
libmono-compilerservices-symbolwriter4.0-cil libmono-cscompmgd0.0-cil libmono-csharp4.0c-cil libmono-custommarshalers4.0-cil
libmono-data-tds4.0-cil libmono-db2-1.0-cil libmono-debugger-soft4.0a-cil libmono-http4.0-cil libmono-ldap4.0-cil
libmono-management4.0-cil libmono-messaging-rabbitmq4.0-cil libmono-messaging4.0-cil libmono-microsoft-build-engine4.0-cil
libmono-microsoft-build-framework4.0-cil libmono-microsoft-build-tasks-v4.0-4.0-cil libmono-microsoft-build-utilities-v4.0-4.0-cil
libmono-microsoft-build4.0-cil libmono-microsoft-csharp4.0-cil libmono-microsoft-visualc10.0-cil
libmono-microsoft-web-infrastructure1.0-cil libmono-oracle4.0-cil libmono-parallel4.0-cil libmono-peapi4.0a-cil libmono-posix4.0-cil
libmono-rabbitmq4.0-cil libmono-relaxng4.0-cil libmono-sharpzip4.84-cil libmono-simd4.0-cil libmono-smdiagnostics0.0-cil
libmono-sqlite4.0-cil libmono-system-componentmodel-composition4.0-cil libmono-system-componentmodel-dataannotations4.0-cil
libmono-system-configuration-install4.0-cil libmono-system-data-datasetextensions4.0-cil libmono-system-data-entity4.0-cil
libmono-system-data-linq4.0-cil libmono-system-data-services-client4.0-cil libmono-system-data-services4.0-cil libmono-system-data4.0-cil
libmono-system-deployment4.0-cil libmono-system-design4.0-cil libmono-system-drawing-design4.0-cil libmono-system-dynamic4.0-cil
libmono-system-enterpriseservices4.0-cil libmono-system-identitymodel-selectors4.0-cil libmono-system-identitymodel4.0-cil
libmono-system-io-compression-filesystem4.0-cil libmono-system-io-compression4.0-cil libmono-system-json-microsoft4.0-cil
libmono-system-json4.0-cil libmono-system-ldap-protocols4.0-cil libmono-system-ldap4.0-cil libmono-system-management4.0-cil
libmono-system-messaging4.0-cil libmono-system-net-http-formatting4.0-cil libmono-system-net-http-webrequest4.0-cil
libmono-system-net-http4.0-cil libmono-system-net4.0-cil libmono-system-numerics-vectors4.0-cil libmono-system-reactive-core2.2-cil
libmono-system-reactive-debugger2.2-cil libmono-system-reactive-experimental2.2-cil libmono-system-reactive-interfaces2.2-cil
libmono-system-reactive-linq2.2-cil libmono-system-reactive-observable-aliases0.0-cil libmono-system-reactive-platformservices2.2-cil
libmono-system-reactive-providers2.2-cil libmono-system-reactive-runtime-remoting2.2-cil libmono-system-reactive-windows-forms2.2-cil
libmono-system-reactive-windows-threading2.2-cil libmono-system-reflection-context4.0-cil libmono-system-runtime-caching4.0-cil
libmono-system-runtime-durableinstancing4.0-cil libmono-system-runtime-serialization-formatters-soap4.0-cil
libmono-system-runtime-serialization4.0-cil libmono-system-runtime4.0-cil libmono-system-servicemodel-activation4.0-cil
libmono-system-servicemodel-discovery4.0-cil libmono-system-servicemodel-internals0.0-cil libmono-system-servicemodel-routing4.0-cil
libmono-system-servicemodel-web4.0-cil libmono-system-servicemodel4.0a-cil libmono-system-serviceprocess4.0-cil
libmono-system-threading-tasks-dataflow4.0-cil libmono-system-transactions4.0-cil libmono-system-web-abstractions4.0-cil
libmono-system-web-applicationservices4.0-cil libmono-system-web-dynamicdata4.0-cil libmono-system-web-extensions-design4.0-cil
libmono-system-web-extensions4.0-cil libmono-system-web-http-selfhost4.0-cil libmono-system-web-http-webhost4.0-cil
libmono-system-web-http4.0-cil libmono-system-web-mobile4.0-cil libmono-system-web-mvc3.0-cil libmono-system-web-razor2.0-cil
libmono-system-web-regularexpressions4.0-cil libmono-system-web-routing4.0-cil libmono-system-web-services4.0-cil
libmono-system-web-webpages-deployment2.0-cil libmono-system-web-webpages-razor2.0-cil libmono-system-web-webpages2.0-cil
libmono-system-web4.0-cil libmono-system-windows-forms-datavisualization4.0a-cil libmono-system-windows-forms4.0-cil
libmono-system-windows4.0-cil libmono-system-workflow-activities4.0-cil libmono-system-workflow-componentmodel4.0-cil
libmono-system-workflow-runtime4.0-cil libmono-system-xaml4.0-cil libmono-system-xml-linq4.0-cil libmono-system-xml-serialization4.0-cil
libmono-tasklets4.0-cil libmono-webbrowser4.0-cil libmono-webmatrix-data4.0-cil libmono-windowsbase4.0-cil libmono-xbuild-tasks4.0-cil
libmonosgen-2.0-1 libmonosgen-2.0-dev libnunit-cil-dev libnunit-console-runner2.6.3-cil libnunit-core-interfaces2.6.3-cil
libnunit-core2.6.3-cil libnunit-framework2.6.3-cil libnunit-mocks2.6.3-cil libnunit-util2.6.3-cil libpango3.0-cil libqt5qml5 librarian0
libzeroc-ice3.7 linux-headers-4.18.0-21 linux-headers-4.18.0-21-generic linux-headers-4.18.0-25 linux-headers-4.18.0-25-generic
linux-image-4.18.0-21-generic linux-image-4.18.0-25-generic linux-modules-4.18.0-21-generic linux-modules-4.18.0-25-generic
linux-modules-extra-4.18.0-21-generic linux-modules-extra-4.18.0-25-generic mono-4.0-service mono-csharp-shell mono-devel mono-mcs
mono-xbuild mono-xsp4 mono-xsp4-base monodoc-base monodoc-http monodoc-manual ocl-icd-libopencl1 rarian-compat sgml-data xml-core
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
aptitude-common libcwidget3v5
Suggested packages:
aptitude-doc-en | aptitude-doc apt-xapian-index debtags tasksel libcwidget-dev
The following NEW packages will be installed:
aptitude aptitude-common libcwidget3v5
0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
Need to get 2,569 kB of archives.
After this operation, 10.9 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://archive.ubuntu.com/ubuntu bionic/main amd64 aptitude-common all 0.8.10-6ubuntu1 [1,014 kB]
Get:2 http://archive.ubuntu.com/ubuntu bionic/main amd64 libcwidget3v5 amd64 0.5.17-7 [286 kB]
Get:3 http://archive.ubuntu.com/ubuntu bionic/main amd64 aptitude amd64 0.8.10-6ubuntu1 [1,269 kB]
Fetched 2,569 kB in 16s (162 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package aptitude-common.
(Reading database ... 251563 files and directories currently installed.)
Preparing to unpack .../aptitude-common_0.8.10-6ubuntu1_all.deb ...
Unpacking aptitude-common (0.8.10-6ubuntu1) ...
Selecting previously unselected package libcwidget3v5:amd64.
Preparing to unpack .../libcwidget3v5_0.5.17-7_amd64.deb ...
Unpacking libcwidget3v5:amd64 (0.5.17-7) ...
Selecting previously unselected package aptitude.
Preparing to unpack .../aptitude_0.8.10-6ubuntu1_amd64.deb ...
Unpacking aptitude (0.8.10-6ubuntu1) ...
Setting up aptitude-common (0.8.10-6ubuntu1) ...
Setting up libcwidget3v5:amd64 (0.5.17-7) ...
Setting up aptitude (0.8.10-6ubuntu1) ...
update-alternatives: using /usr/bin/aptitude-curses to provide /usr/bin/aptitude (aptitude) in auto mode
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for libc-bin (2.28-10) ...
能力倾向 UBUNTU 桌面 1：
$ sudo aptitude install ubuntu-desktop
The following NEW packages will be installed:
apport{a} apport-gtk{a} appstream{a} apt-config-icons{a} aptdaemon{a} apturl{a} apturl-common{a} brltty{a} cups-bsd{a} eog{a} fwupd{a}
gdb{a} gnome-control-center{a} gnome-mahjongg{a} gnome-screenshot{a} gnome-session-canberra{a} gnome-software{a}
gnome-software-plugin-snap{a} gstreamer1.0-packagekit{a} hplip{ab} inputattach{a} language-selector-common{a}
language-selector-gnome{a} libapt-inst2.0{a} libapt-pkg-perl{ab} libbabeltrace1{a} libc6-dbg{ab} libclone-perl{ab}
liblist-moreutils-perl{ab} libnss-myhostname{a} libperlio-gzip-perl{ab} libreoffice-avmedia-backend-gstreamer{ab} libreoffice-calc{ab}
libreoffice-draw{ab} libreoffice-gnome{ab} libreoffice-gtk3{ab} libreoffice-impress{ab} libreoffice-math{ab} libreoffice-ogltrans{ab}
libsane-hpaio{a} libyaml-libyaml-perl{ab} lintian{a} nautilus-share{a} packagekit{a} packagekit-tools{a} patchutils{a}
printer-driver-hpcups{a} printer-driver-min12xxw{a} printer-driver-postscript-hp{a} printer-driver-pxljr{a}
pulseaudio-module-bluetooth{a} python3-apport{a} python3-apt{ab} python3-aptdaemon{a} python3-aptdaemon.gtk3widgets{a}
python3-dateutil{a} python3-distupgrade{a} python3-software-properties{a} python3-systemd{ab} python3-update-manager{a} simple-scan{a}
software-properties-common{a} software-properties-gtk{a} ubuntu-desktop ubuntu-drivers-common{a} ubuntu-release-upgrader-core{a}
ubuntu-release-upgrader-gtk{a} ubuntu-software{a} ubuntu-system-service{a} unattended-upgrades{a} update-manager{a}
update-manager-core{a} update-notifier{a} update-notifier-common{a} vino{a} x11-apps{a} xinit{a} xorg{a} xserver-xorg{a}
xserver-xorg-core{ab} xserver-xorg-legacy{a}
The following packages will be REMOVED:
coinor-libcbc3{u} coinor-libcgl1{u} coinor-libclp1{u} coinor-libcoinutils3v5{u} coinor-libosi1v5{u} docbook-xml{u} git-man{u}
javascript-common{u} libcairo1.10-cil{u} liberror-perl{u} libglib3.0-cil{u} libhwloc-plugins{u} libhwloc5{u} libjs-xmlextras{u}
liblinear3{u} liblmdb0{u} libmono-2.0-1{u} libmono-2.0-dev{u} libmono-accessibility4.0-cil{u} libmono-cecil-private-cil{u}
libmono-cil-dev{u} libmono-codecontracts4.0-cil{u} libmono-compilerservices-symbolwriter4.0-cil{u} libmono-cscompmgd0.0-cil{u}
libmono-csharp4.0c-cil{u} libmono-custommarshalers4.0-cil{u} libmono-data-tds4.0-cil{u} libmono-db2-1.0-cil{u}
libmono-debugger-soft4.0a-cil{u} libmono-http4.0-cil{u} libmono-ldap4.0-cil{u} libmono-management4.0-cil{u}
libmono-messaging-rabbitmq4.0-cil{u} libmono-messaging4.0-cil{u} libmono-microsoft-build-engine4.0-cil{u}
libmono-microsoft-build-framework4.0-cil{u} libmono-microsoft-build-tasks-v4.0-4.0-cil{u}
libmono-microsoft-build-utilities-v4.0-4.0-cil{u} libmono-microsoft-build4.0-cil{u} libmono-microsoft-csharp4.0-cil{u}
libmono-microsoft-visualc10.0-cil{u} libmono-microsoft-web-infrastructure1.0-cil{u} libmono-oracle4.0-cil{u} libmono-parallel4.0-cil{u}
libmono-peapi4.0a-cil{u} libmono-posix4.0-cil{u} libmono-rabbitmq4.0-cil{u} libmono-relaxng4.0-cil{u} libmono-sharpzip4.84-cil{u}
libmono-simd4.0-cil{u} libmono-smdiagnostics0.0-cil{u} libmono-sqlite4.0-cil{u} libmono-system-componentmodel-composition4.0-cil{u}
libmono-system-componentmodel-dataannotations4.0-cil{u} libmono-system-configuration-install4.0-cil{u}
libmono-system-data-datasetextensions4.0-cil{u} libmono-system-data-entity4.0-cil{u} libmono-system-data-linq4.0-cil{u}
libmono-system-data-services-client4.0-cil{u} libmono-system-data-services4.0-cil{u} libmono-system-data4.0-cil{u}
libmono-system-deployment4.0-cil{u} libmono-system-design4.0-cil{u} libmono-system-drawing-design4.0-cil{u}
libmono-system-dynamic4.0-cil{u} libmono-system-enterpriseservices4.0-cil{u} libmono-system-identitymodel-selectors4.0-cil{u}
libmono-system-identitymodel4.0-cil{u} libmono-system-io-compression-filesystem4.0-cil{u} libmono-system-io-compression4.0-cil{u}
libmono-system-json-microsoft4.0-cil{u} libmono-system-json4.0-cil{u} libmono-system-ldap-protocols4.0-cil{u}
libmono-system-ldap4.0-cil{u} libmono-system-management4.0-cil{u} libmono-system-messaging4.0-cil{u}
libmono-system-net-http-formatting4.0-cil{u} libmono-system-net-http-webrequest4.0-cil{u} libmono-system-net-http4.0-cil{u}
libmono-system-net4.0-cil{u} libmono-system-numerics-vectors4.0-cil{u} libmono-system-reactive-core2.2-cil{u}
libmono-system-reactive-debugger2.2-cil{u} libmono-system-reactive-experimental2.2-cil{u} libmono-system-reactive-interfaces2.2-cil{u}
libmono-system-reactive-linq2.2-cil{u} libmono-system-reactive-observable-aliases0.0-cil{u}
libmono-system-reactive-platformservices2.2-cil{u} libmono-system-reactive-providers2.2-cil{u}
libmono-system-reactive-runtime-remoting2.2-cil{u} libmono-system-reactive-windows-forms2.2-cil{u}
libmono-system-reactive-windows-threading2.2-cil{u} libmono-system-reflection-context4.0-cil{u}
libmono-system-runtime-caching4.0-cil{u} libmono-system-runtime-durableinstancing4.0-cil{u}
libmono-system-runtime-serialization-formatters-soap4.0-cil{u} libmono-system-runtime-serialization4.0-cil{u}
libmono-system-runtime4.0-cil{u} libmono-system-servicemodel-activation4.0-cil{u} libmono-system-servicemodel-discovery4.0-cil{u}
libmono-system-servicemodel-internals0.0-cil{u} libmono-system-servicemodel-routing4.0-cil{u} libmono-system-servicemodel-web4.0-cil{u}
libmono-system-servicemodel4.0a-cil{u} libmono-system-serviceprocess4.0-cil{u} libmono-system-threading-tasks-dataflow4.0-cil{u}
libmono-system-transactions4.0-cil{u} libmono-system-web-abstractions4.0-cil{u} libmono-system-web-applicationservices4.0-cil{u}
libmono-system-web-dynamicdata4.0-cil{u} libmono-system-web-extensions-design4.0-cil{u} libmono-system-web-extensions4.0-cil{u}
libmono-system-web-http-selfhost4.0-cil{u} libmono-system-web-http-webhost4.0-cil{u} libmono-system-web-http4.0-cil{u}
清除自动删除的结果：
$ sudo apt-get autoremove --purge
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
linux-headers-4.18.0-21* linux-headers-4.18.0-21-generic* linux-headers-4.18.0-25* linux-headers-4.18.0-25-generic*
linux-image-4.18.0-21-generic* linux-image-4.18.0-25-generic* linux-modules-4.18.0-21-generic* linux-modules-4.18.0-25-generic*
0 upgraded, 0 newly installed, 8 to remove and 0 not upgraded.
After this operation, 316 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 238865 files and directories currently installed.)
Removing linux-headers-4.18.0-21-generic (4.18.0-21.22~18.04.1) ...
Removing linux-headers-4.18.0-21 (4.18.0-21.22~18.04.1) ...
Removing linux-headers-4.18.0-25-generic (4.18.0-25.26~18.04.1) ...
Removing linux-headers-4.18.0-25 (4.18.0-25.26~18.04.1) ...
Removing linux-image-4.18.0-21-generic (4.18.0-21.22~18.04.1) ...
/etc/kernel/postrm.d/initramfs-tools:
update-initramfs: Deleting /boot/initrd.img-4.18.0-21-generic
/etc/kernel/postrm.d/zz-update-grub:
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.0.0-26-generic
Found initrd image: /boot/initrd.img-5.0.0-26-generic
Found linux image: /boot/vmlinuz-5.0.0-23-generic
Found initrd image: /boot/initrd.img-5.0.0-23-generic
Found linux image: /boot/vmlinuz-4.18.0-25-generic
Found initrd image: /boot/initrd.img-4.18.0-25-generic
Adding boot menu entry for EFI firmware configuration
done
Removing linux-image-4.18.0-25-generic (4.18.0-25.26~18.04.1) ...
/etc/kernel/postrm.d/initramfs-tools:
update-initramfs: Deleting /boot/initrd.img-4.18.0-25-generic
/etc/kernel/postrm.d/zz-update-grub:
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.0.0-26-generic
Found initrd image: /boot/initrd.img-5.0.0-26-generic
Found linux image: /boot/vmlinuz-5.0.0-23-generic
Found initrd image: /boot/initrd.img-5.0.0-23-generic
Adding boot menu entry for EFI firmware configuration
done
Removing linux-modules-4.18.0-21-generic (4.18.0-21.22~18.04.1) ...
Removing linux-modules-4.18.0-25-generic (4.18.0-25.26~18.04.1) ...
(Reading database ... 179441 files and directories currently installed.)
Purging configuration files for linux-image-4.18.0-21-generic (4.18.0-21.22~18.04.1) ...
Purging configuration files for linux-modules-4.18.0-21-generic (4.18.0-21.22~18.04.1) ...
Purging configuration files for linux-image-4.18.0-25-generic (4.18.0-25.26~18.04.1) ...
Purging configuration files for linux-modules-4.18.0-25-generic (4.18.0-25.26~18.04.1) ...