Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your dmesg attachment in this bug report it seems that there is a problem with your hardware. I recommend performing a back up and then investigating the situation. Measures you might take include checking cable connections and using software tools to investigate the health of your hardware. In the event that is is not in fact an error with your hardware please set the bug's status back to New. Thanks and good luck!
[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.] ** Tags added: hardware-error ** Changed in: ubuntu-docs (Ubuntu) Importance: Undecided => Low ** Changed in: ubuntu-docs (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Documentation Packages, which is subscribed to ubuntu-docs in Ubuntu. https://bugs.launchpad.net/bugs/1363695 Title: package ubuntu-docs 14.04.3 failed to install/upgrade: failed to stat (dereference) existing symlink `/usr/share/help/it/ubuntu-help/net- install-flash.page': Input/output error Status in “ubuntu-docs” package in Ubuntu: Invalid Bug description: Latest update resulted in the above error ProblemType: Package DistroRelease: Ubuntu 14.04 Package: ubuntu-docs 14.04.3 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 Date: Sun Aug 31 17:21:00 2014 DpkgHistoryLog: DpkgTerminalLog: ErrorMessage: failed to stat (dereference) existing symlink `/usr/share/help/it/ubuntu-help/net-install-flash.page': Input/output error InstallationDate: Installed on 2013-11-02 (302 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) PackageArchitecture: all SourcePackage: ubuntu-docs Title: package ubuntu-docs 14.04.3 failed to install/upgrade: failed to stat (dereference) existing symlink `/usr/share/help/it/ubuntu-help/net-install-flash.page': Input/output error UpgradeStatus: Upgraded to trusty on 2014-05-14 (109 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-docs/+bug/1363695/+subscriptions -- Mailing list: https://launchpad.net/~documentation-packages Post to : documentation-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~documentation-packages More help : https://help.launchpad.net/ListHelp