Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that there was an error on your system when trying to install a particular package. Please execute the following command, as it will clear your package cache, in a terminal:
sudo apt-get clean Then try performing the update again. This will likely resolve your issue, but the failure could be caused by filesystem or memory corruption. So please also run a fsck on your filesystem(s) and a memory test. Thanks in advance! [This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.] ** Tags added: corrupted-package ** Changed in: libxcb (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libxcb in Ubuntu. https://bugs.launchpad.net/bugs/1545245 Title: package firefox 39.0+build5-0ubuntu0.14.04.1 failed to install/upgrade: cannot copy extracted data for './usr/lib/firefox/libxul.so' to '/usr/lib/firefox/libxul.so.dpkg- new': unexpected end of file or stream Status in libxcb package in Ubuntu: Invalid Bug description: open Firefox for the first time, syncing, bug... ProblemType: Package DistroRelease: Ubuntu 14.04 Package: firefox 39.0+build5-0ubuntu0.14.04.1 ProcVersionSignature: Ubuntu 3.19.0-49.55~14.04.1-generic 3.19.8-ckt12 Uname: Linux 3.19.0-49-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 Date: Sat Feb 13 00:32:14 2016 DuplicateSignature: package:firefox:39.0+build5-0ubuntu0.14.04.1:cannot copy extracted data for './usr/lib/firefox/libxul.so' to '/usr/lib/firefox/libxul.so.dpkg-new': unexpected end of file or stream ErrorMessage: cannot copy extracted data for './usr/lib/firefox/libxul.so' to '/usr/lib/firefox/libxul.so.dpkg-new': unexpected end of file or stream InstallationDate: Installed on 2016-02-13 (0 days ago) InstallationMedia: Lubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) RelatedPackageVersions: dpkg 1.17.5ubuntu5.5 apt 1.0.1ubuntu2.11 SourcePackage: libxcb Title: package firefox 39.0+build5-0ubuntu0.14.04.1 failed to install/upgrade: cannot copy extracted data for './usr/lib/firefox/libxul.so' to '/usr/lib/firefox/libxul.so.dpkg-new': unexpected end of file or stream UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libxcb/+bug/1545245/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp