It appears the .deb file is corrupt. You may need to run the following:
sudo apt-get install -f sudo apt-get clean sudo apt-get update Then re-install the package. If that does not resolve your issue, please mark the bug as "Confirmed" ** Changed in: linux-firmware (Ubuntu) Importance: Undecided => Low ** Changed in: linux-firmware (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1394927 Title: package linux-firmware 1.127.7 failed to install/upgrade: cannot copy extracted data for './lib/firmware/iwlwifi-6000g2a-6.ucode' to '/lib/firmware/iwlwifi-6000g2a-6.ucode.dpkg-new': unexpected end of file or stream Status in “linux-firmware” package in Ubuntu: Incomplete Bug description: update failed ProblemType: Package DistroRelease: Ubuntu 14.04 Package: linux-firmware 1.127.7 ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8 Uname: Linux 3.13.0-39-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 Date: Fri Nov 21 09:45:22 2014 Dependencies: DuplicateSignature: package:linux-firmware:1.127.7:cannot copy extracted data for './lib/firmware/iwlwifi-6000g2a-6.ucode' to '/lib/firmware/iwlwifi-6000g2a-6.ucode.dpkg-new': unexpected end of file or stream ErrorMessage: cannot copy extracted data for './lib/firmware/iwlwifi-6000g2a-6.ucode' to '/lib/firmware/iwlwifi-6000g2a-6.ucode.dpkg-new': unexpected end of file or stream InstallationDate: Installed on 2014-07-25 (118 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) PackageArchitecture: all SourcePackage: linux-firmware Title: package linux-firmware 1.127.7 failed to install/upgrade: cannot copy extracted data for './lib/firmware/iwlwifi-6000g2a-6.ucode' to '/lib/firmware/iwlwifi-6000g2a-6.ucode.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/linux-firmware/+bug/1394927/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp