Public bug reported:
root@luch-lin:~# apt-get auto-remove lightdm-gtk-greeter
E: Invalid operation auto-remove
root@luch-lin:~# apt-get autoremove lightdm-gtk-greeter
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
kde-l10n-engb kde-l10n-ru lightdm-gtk-greeter
0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
After this operation, 49,9 MB disk space will be freed.
Do you want to continue? [Y/n] Y
(Reading database ... 257105 files and directories currently installed.)
Removing kde-l10n-engb (4:14.12.3-0ubuntu2) ...
Removing kde-l10n-ru (4:14.12.3-0ubuntu2) ...
Removing lightdm-gtk-greeter (2.0.0-0ubuntu1) ...
update-alternatives: warning: alternative
/etc/lightdm/lightdm-gtk-greeter-ubuntu.conf (part of link group
lightdm-gtk-greeter-config-derivative) doesn't exist; removing from list of
alternatives
update-alternatives: warning:
/etc/alternatives/lightdm-gtk-greeter-config-derivative is dangling; it will be
updated with best choice
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for hicolor-icon-theme (0.14-0ubuntu1) ...
root@luch-lin:~# apt-get install lightdm-gtk-greeter
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
lightdm-gtk-greeter
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/77,7 kB of archives.
After this operation, 983 kB of additional disk space will be used.
Selecting previously unselected package lightdm-gtk-greeter.
(Reading database ... 254445 files and directories currently installed.)
Preparing to unpack .../lightdm-gtk-greeter_2.0.0-0ubuntu1_amd64.deb ...
Unpacking lightdm-gtk-greeter (2.0.0-0ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.14-0ubuntu1) ...
Setting up lightdm-gtk-greeter (2.0.0-0ubuntu1) ...
update-alternatives: using /usr/share/xgreeters/lightdm-gtk-greeter.desktop to
provide /usr/share/xgreeters/lightdm-greeter.desktop (lightdm-greeter) in auto
mode
update-alternatives: error: alternative path
/etc/lightdm/lightdm-gtk-greeter-ubuntu.conf doesn't exist
dpkg: error processing package lightdm-gtk-greeter (--configure):
subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
lightdm-gtk-greeter
E: Sub-process /usr/bin/dpkg returned an error code (1)
ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: lightdm-gtk-greeter 2.0.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
AptOrdering:
lightdm-gtk-greeter: Install
lightdm-gtk-greeter: Configure
NULL: ConfigurePending
Architecture: amd64
Date: Fri Jan 22 03:21:49 2016
DuplicateSignature: package:lightdm-gtk-greeter:2.0.0-0ubuntu1:subprocess
installed post-installation script returned error exit status 2
ErrorMessage: subprocess installed post-installation script returned error exit
status 2
InstallationDate: Installed on 2015-12-27 (25 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
RelatedPackageVersions:
dpkg 1.17.25ubuntu1
apt 1.0.9.7ubuntu4
SourcePackage: lightdm-gtk-greeter
Title: package lightdm-gtk-greeter 2.0.0-0ubuntu1 failed to install/upgrade:
subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.lightdm.lightdm.gtk.greeter.ubuntu.conf: [deleted]
** Affects: lightdm-gtk-greeter (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-package vivid
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https://bugs.launchpad.net/bugs/1536848
Title:
package lightdm-gtk-greeter 2.0.0-0ubuntu1 failed to install/upgrade:
subprocess installed post-installation script returned error exit
status 2
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