I tried to install the recommended Updates for Ubuntu 12.04 using XFCE and I got this error message:
E: Sub-process /usr/bin/dpkg returned an error code (1)
Maybe this snippet during the update process will help you as well:
/usr/share/gconf/schemas/gstreamer-0.10.schemas:90: parser error : Premature end of data in tag long line 90
<long>Describes the selected ou
^
/usr/share/gconf/schemas/gstreamer-0.10.schemas:90: parser error : Premature end of data in tag locale line 88
<long>Describes the selected ou
^
/usr/share/gconf/schemas/gstreamer-0.10.schemas:90: parser error : Premature end of data in tag schema line 81
<long>Describes the selected ou
^
/usr/share/gconf/schemas/gstreamer-0.10.schemas:90: parser error : Premature end of data in tag schemalist line 2
<long>Describes the selected ou
^
/usr/share/gconf/schemas/gstreamer-0.10.schemas:90: parser error : Premature end of data in tag gconfschemafile line 1
<long>Describes the selected ou
^
/usr/share/gconf/schemas/desktop_gnome_file_sharing.schemas:97: parser error : Premature end of data in tag applyto line 97
<applyto>/des
^
/usr/share/gconf/schemas/desktop_gnome_file_sharing.schemas:97: parser error : Premature end of data in tag schema line 95
<applyto>/des
^
/usr/share/gconf/schemas/desktop_gnome_file_sharing.schemas:97: parser error : Premature end of data in tag schemalist line 3
<applyto>/des
^
/usr/share/gconf/schemas/desktop_gnome_file_sharing.schemas:97: parser error : Premature end of data in tag gconfschemafile line 2
<applyto>/des
^
/usr/share/gconf/schemas/gnome-sound-recorder.schemas:117: parser error : Premature end of data in tag owner line 117
<owner>Gno
^
/usr/share/gconf/schemas/gnome-sound-recorder.schemas:117: parser error : Premature end of data in tag schema line 114
<owner>Gno
^
/usr/share/gconf/schemas/gnome-sound-recorder.schemas:117: parser error : Premature end of data in tag schemalist line 3
<owner>Gno
^
/usr/share/gconf/schemas/gnome-sound-recorder.schemas:117: parser error : Premature end of data in tag gconfschemafile line 2
<owner>Gno
^
/usr/share/gconf/schemas/compiz-clone.schemas:124: parser error : Premature end of data in tag long line 124
<long>Initiate
^
/usr/share/gconf/schemas/compiz-clone.schemas:124: parser error : Premature end of data in tag locale line 122
<long>Initiate
^
/usr/share/gconf/schemas/compiz-clone.schemas:124: parser error : Premature end of data in tag schema line 4
<long>Initiate
^
/usr/share/gconf/schemas/compiz-clone.schemas:124: parser error : Premature end of data in tag schemalist line 3
<long>Initiate
^
/usr/share/gconf/schemas/compiz-clone.schemas:124: parser error : Premature end of data in tag gconfschemafile line 2
<long>Initiate
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_keyboard.schemas:132: parser error : Premature end of data in tag long line 132
<long>File name of the bell s
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_keyboard.schemas:132: parser error : Premature end of data in tag locale line 130
<long>File name of the bell s
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_keyboard.schemas:132: parser error : Premature end of data in tag schema line 124
<long>File name of the bell s
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_keyboard.schemas:132: parser error : Premature end of data in tag schemalist line 3
<long>File name of the bell s
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_keyboard.schemas:132: parser error : Premature end of data in tag gconfschemafile line 2
<long>File name of the bell s
^
/usr/share/gconf/schemas/desktop_gnome_lockdown.schemas:119: parser error : Premature end of data in tag applyto line 119
<applyto>/desktop/gnome/lockdown/disable_applicatio
^
/usr/share/gconf/schemas/desktop_gnome_lockdown.schemas:119: parser error : Premature end of data in tag schema line 117
<applyto>/desktop/gnome/lockdown/disable_applicatio
^
/usr/share/gconf/schemas/desktop_gnome_lockdown.schemas:119: parser error : Premature end of data in tag schemalist line 3
<applyto>/desktop/gnome/lockdown/disable_applicatio
^
/usr/share/gconf/schemas/desktop_gnome_lockdown.schemas:119: parser error : Premature end of data in tag gconfschemafile line 2
<applyto>/desktop/gnome/lockdown/disable_applicatio
^
/usr/share/gconf/schemas/desktop_gnome_url_handlers.schemas:105: parser error : Premature end of data in tag locale line 102
^
/usr/share/gconf/schemas/desktop_gnome_url_handlers.schemas:105: parser error : Premature end of data in tag schema line 95
^
/usr/share/gconf/schemas/desktop_gnome_url_handlers.schemas:105: parser error : Premature end of data in tag schemalist line 3
^
/usr/share/gconf/schemas/desktop_gnome_url_handlers.schemas:105: parser error : Premature end of data in tag gconfschemafile line 2
^
/usr/share/gconf/schemas/gthumb_resize_images.schemas:178: parser error : Couldn't find end of Start Tag locale line 178
<locale
^
/usr/share/gconf/schemas/gthumb_resize_images.schemas:178: parser error : Premature end of data in tag schema line 172
<locale
^
/usr/share/gconf/schemas/gthumb_resize_images.schemas:178: parser error : Premature end of data in tag schemalist line 2
<locale
^
/usr/share/gconf/schemas/gthumb_resize_images.schemas:178: parser error : Premature end of data in tag gconfschemafile line 1
<locale
^
/usr/share/gconf/schemas/gthumb_webalbums.schemas:174: parser error : Premature end of data in tag key line 174
<key>/schemas/apps/gthumb/ext/webalbum
^
/usr/share/gconf/schemas/gthumb_webalbums.schemas:174: parser error : Premature end of data in tag schema line 173
<key>/schemas/apps/gthumb/ext/webalbum
^
/usr/share/gconf/schemas/gthumb_webalbums.schemas:174: parser error : Premature end of data in tag schemalist line 2
<key>/schemas/apps/gthumb/ext/webalbum
^
/usr/share/gconf/schemas/gthumb_webalbums.schemas:174: parser error : Premature end of data in tag gconfschemafile line 1
<key>/schemas/apps/gthumb/ext/webalbum
^
/usr/share/gconf/schemas/gthumb_rename_series.schemas:112: parser error : expected '>'
<applyto>/apps/gthumb/ext/rename_series/reverse_order</applyt
^
/usr/share/gconf/schemas/gthumb_rename_series.schemas:112: parser error : Opening and ending tag mismatch: applyto line 112 and applyt
<applyto>/apps/gthumb/ext/rename_series/reverse_order</applyt
^
/usr/share/gconf/schemas/gthumb_rename_series.schemas:112: parser error : Premature end of data in tag schema line 110
<applyto>/apps/gthumb/ext/rename_series/reverse_order</applyt
^
/usr/share/gconf/schemas/gthumb_rename_series.schemas:112: parser error : Premature end of data in tag schemalist line 2
<applyto>/apps/gthumb/ext/rename_series/reverse_order</applyt
^
/usr/share/gconf/schemas/gthumb_rename_series.schemas:112: parser error : Premature end of data in tag gconfschemafile line 1
<applyto>/apps/gthumb/ext/rename_series/reverse_order</applyt
^
/usr/share/gconf/schemas/system_http_proxy.schemas:113: parser error : expected '>'
<short>Proxy configuration mode</shor
^
/usr/share/gconf/schemas/system_http_proxy.schemas:113: parser error : Opening and ending tag mismatch: short line 113 and shor
<short>Proxy configuration mode</shor
^
/usr/share/gconf/schemas/system_http_proxy.schemas:113: parser error : Premature end of data in tag locale line 112
<short>Proxy configuration mode</shor
^
/usr/share/gconf/schemas/system_http_proxy.schemas:113: parser error : Premature end of data in tag schema line 105
<short>Proxy configuration mode</shor
^
/usr/share/gconf/schemas/system_http_proxy.schemas:113: parser error : Premature end of data in tag schemalist line 3
<short>Proxy configuration mode</shor
^
/usr/share/gconf/schemas/system_http_proxy.schemas:113: parser error : Premature end of data in tag gconfschemafile line 2
<short>Proxy configuration mode</shor
^
/usr/share/gconf/schemas/gthumb-pixbuf-savers.schemas:197: parser error : internal error
<long>指定可能な値: tiff
^
/usr/share/gconf/schemas/gthumb-pixbuf-savers.schemas:197: parser error : Extra content at the end of the document
<long>指定可能な値: tiff
^
/usr/share/gconf/schemas/desktop_gnome_interface.schemas:115: parser error : expected '>'
<owner>gnome</o
^
/usr/share/gconf/schemas/desktop_gnome_interface.schemas:115: parser error : Opening and ending tag mismatch: owner line 115 and o
<owner>gnome</o
^
/usr/share/gconf/schemas/desktop_gnome_interface.schemas:115: parser error : Premature end of data in tag schema line 112
<owner>gnome</o
^
/usr/share/gconf/schemas/desktop_gnome_interface.schemas:115: parser error : Premature end of data in tag schemalist line 3
<owner>gnome</o
^
/usr/share/gconf/schemas/desktop_gnome_interface.schemas:115: parser error : Premature end of data in tag gconfschemafile line 2
<owner>gnome</o
^
/usr/share/gconf/schemas/desktop_gnome_accessibility_keyboard.schemas:127: parser error : Premature end of data in tag gettext_domain line 127
<gettext_domain>libgnome-
^
/usr/share/gconf/schemas/desktop_gnome_accessibility_keyboard.schemas:127: parser error : Premature end of data in tag schema line 121
<gettext_domain>libgnome-
^
/usr/share/gconf/schemas/desktop_gnome_accessibility_keyboard.schemas:127: parser error : Premature end of data in tag schemalist line 3
<gettext_domain>libgnome-
^
/usr/share/gconf/schemas/desktop_gnome_accessibility_keyboard.schemas:127: parser error : Premature end of data in tag gconfschemafile line 2
<gettext_domain>libgnome-
^
/usr/share/gconf/schemas/gthumb_contact_sheet.schemas:176: parser error : expected '>'
<key>/schemas/apps/gthumb/ext/contact_sheet/thumbnail_size</
^
/usr/share/gconf/schemas/gthumb_contact_sheet.schemas:176: parser error : Opening and ending tag mismatch: key line 176 and unparseable
<key>/schemas/apps/gthumb/ext/contact_sheet/thumbnail_size</
^
/usr/share/gconf/schemas/gthumb_contact_sheet.schemas:176: parser error : Premature end of data in tag schema line 175
<key>/schemas/apps/gthumb/ext/contact_sheet/thumbnail_size</
^
/usr/share/gconf/schemas/gthumb_contact_sheet.schemas:176: parser error : Premature end of data in tag schemalist line 2
<key>/schemas/apps/gthumb/ext/contact_sheet/thumbnail_size</
^
/usr/share/gconf/schemas/gthumb_contact_sheet.schemas:176: parser error : Premature end of data in tag gconfschemafile line 1
<key>/schemas/apps/gthumb/ext/contact_sheet/thumbnail_size</
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_mouse.schemas:117: parser error : Premature end of data in tag key line 117
<key>/schemas/desktop/gnom
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_mouse.schemas:117: parser error : Premature end of data in tag schema line 116
<key>/schemas/desktop/gnom
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_mouse.schemas:117: parser error : Premature end of data in tag schemalist line 3
<key>/schemas/desktop/gnom
^
/usr/share/gconf/schemas/desktop_gnome_peripherals_mouse.schemas:117: parser error : Premature end of data in tag gconfschemafile line 2
<key>/schemas/desktop/gnom
^
/usr/share/gconf/schemas/compiz-vpswitch.schemas:105: parser error : Premature end of data in tag applyto line 105
<applyto>/apps/compiz-1/plugins/vpswitch/screen0/
^
/usr/share/gconf/schemas/compiz-vpswitch.schemas:105: parser error : Premature end of data in tag schema line 103
<applyto>/apps/compiz-1/plugins/vpswitch/screen0/
^
/usr/share/gconf/schemas/compiz-vpswitch.schemas:105: parser error : Premature end of data in tag schemalist line 3
<applyto>/apps/compiz-1/plugins/vpswitch/screen0/
^
/usr/share/gconf/schemas/compiz-vpswitch.schemas:105: parser error : Premature end of data in tag gconfschemafile line 2
<applyto>/apps/compiz-1/plugins/vpswitch/screen0/
^
/usr/share/gconf/schemas/compiz-grid.schemas:104: parser error : Premature end of data in tag key line 104
<key>/schem
^
/usr/share/gconf/schemas/compiz-grid.schemas:104: parser error : Premature end of data in tag schema line 103
<key>/schem
^
/usr/share/gconf/schemas/compiz-grid.schemas:104: parser error : Premature end of data in tag schemalist line 3
<key>/schem
^
/usr/share/gconf/schemas/compiz-grid.schemas:104: parser error : Premature end of data in tag gconfschemafile line 2
<key>/schem
^
/usr/share/gconf/schemas/compiz-expo.schemas:106: parser error : Premature end of data in tag owner line 106
<owner>compiz
^
/usr/share/gconf/schemas/compiz-expo.schemas:106: parser error : Premature end of data in tag schema line 103
<owner>compiz
^
/usr/share/gconf/schemas/compiz-expo.schemas:106: parser error : Premature end of data in tag schemalist line 3
<owner>compiz
^
/usr/share/gconf/schemas/compiz-expo.schemas:106: parser error : Premature end of data in tag gconfschemafile line 2
<owner>compiz
^
/usr/share/gconf/schemas/ibus.schemas:113: parser error : Premature end of data in tag schema line 105
^
/usr/share/gconf/schemas/ibus.schemas:113: parser error : Premature end of data in tag schemalist line 3
^
/usr/share/gconf/schemas/ibus.schemas:113: parser error : Premature end of data in tag gconfschemafile line 2
^
/usr/share/gconf/schemas/gthumb-importer.schemas:162: parser error : Premature end of data in tag locale line 162
<locale name="de">
^
/usr/share/gconf/schemas/gthumb-importer.schemas:162: parser error : Premature end of data in tag schema line 140
<locale name="de">
^
/usr/share/gconf/schemas/gthumb-importer.schemas:162: parser error : Premature end of data in tag schemalist line 2
<locale name="de">
^
/usr/share/gconf/schemas/gthumb-importer.schemas:162: parser error : Premature end of data in tag gconfschemafile line 1
<locale name="de">
^
/usr/share/gconf/schemas/compiz-workarounds.schemas:99: parser error : Premature end of data in tag short line 99
<short>Convert Urgen
^
/usr/share/gconf/schemas/compiz-workarounds.schemas:99: parser error : Premature end of data in tag locale line 98
<short>Convert Urgen
^
/usr/share/gconf/schemas/compiz-workarounds.schemas:99: parser error : Premature end of data in tag schema line 92
<short>Convert Urgen
^
/usr/share/gconf/schemas/compiz-workarounds.schemas:99: parser error : Premature end of data in tag schemalist line 3
<short>Convert Urgen
^
/usr/share/gconf/schemas/compiz-workarounds.schemas:99: parser error : Premature end of data in tag gconfschemafile line 2
<short>Convert Urgen
^
/usr/share/gconf/schemas/gnumeric-plugins.schemas:59: parser error : Specification mandate value for attribute n
<locale n
^
/usr/share/gconf/schemas/gnumeric-plugins.schemas:59: parser error : attributes construct error
<locale n
^
/usr/share/gconf/schemas/gnumeric-plugins.schemas:59: parser error : Couldn't find end of Start Tag locale line 59
<locale n
^
/usr/share/gconf/schemas/gnumeric-plugins.schemas:59: parser error : Premature end of data in tag schema line 3
<locale n
^
/usr/share/gconf/schemas/gnumeric-plugins.schemas:59: parser error : Premature end of data in tag schemalist line 2
<locale n
^
/usr/share/gconf/schemas/gnumeric-plugins.schemas:59: parser error : Premature end of data in tag gconfschemafile line 1
<locale n
^
ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: gconf2 3.2.5-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Date: Fri Jun 8 12:29:21 2012
ErrorMessage: Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
SourcePackage: gconf
Title: package gconf2 3.2.5-0ubuntu2 failed to install/upgrade: Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück
UpgradeStatus: No upgrade log present (probably fresh install)
