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: upower (Ubuntu) Importance: Undecided => Low ** Changed in: upower (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to upower in Ubuntu. https://bugs.launchpad.net/bugs/1153169 Title: package libupower-glib1 0.9.17-1build1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 Status in “upower” package in Ubuntu: Invalid Bug description: imoossible to start system ProblemType: Package DistroRelease: Ubuntu 12.10 Package: libupower-glib1 0.9.17-1build1 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 Uname: Linux 3.5.0-26-generic i686 ApportVersion: 2.6.1-0ubuntu10 Architecture: i386 Date: Sat Mar 9 16:13:47 2013 DuplicateSignature: Setting up libupower-glib1 (0.9.17-1build1) ... dpkg (subprocess): unable to execute installed post-installation script (/var/lib/dpkg/info/libupower-glib1.postinst): Input/output error dpkg: error processing libupower-glib1 (--configure): subprocess installed post-installation script returned error exit status 2 ErrorMessage: subprocess installed post-installation script returned error exit status 2 InstallationDate: Installed on 2012-03-26 (349 days ago) InstallationMedia: Ubuntu 11.10 "Oneiric" - Build i386 LIVE Binary 20111013-11:02 MarkForUpload: True SourcePackage: upower Title: package libupower-glib1 0.9.17-1build1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 UpgradeStatus: Upgraded to quantal on 2012-10-21 (139 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upower/+bug/1153169/+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