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: linux-lts-utopic (Ubuntu) Importance: Undecided => Low ** Changed in: linux-lts-utopic (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-utopic in Ubuntu. https://bugs.launchpad.net/bugs/1610528 Title: package linux-headers-3.16.0-77 (not installed) failed to install/upgrade: unable to securely remove '/usr/src/linux- headers-3.16.0-77/arch/mips/ralink/dts/Makefile': Not a directory Status in linux-lts-utopic package in Ubuntu: Invalid Bug description: System error window at reboot. ProblemType: Package DistroRelease: Ubuntu 14.04 Package: linux-headers-3.16.0-77 (not installed) ProcVersionSignature: Ubuntu 4.4.0-34.53~14.04.1-generic 4.4.15 Uname: Linux 4.4.0-34-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 Date: Fri Aug 5 08:57:41 2016 DuplicateSignature: package:linux-headers-3.16.0-77:(not installed):unable to securely remove '/usr/src/linux-headers-3.16.0-77/arch/mips/ralink/dts/Makefile': Not a directory ErrorMessage: unable to securely remove '/usr/src/linux-headers-3.16.0-77/arch/mips/ralink/dts/Makefile': Not a directory InstallationDate: Installed on 2016-04-19 (109 days ago) InstallationMedia: Ubuntu MATE 14.04.2 "Trusty Tahr" - LTS amd64 (20150323) RelatedPackageVersions: dpkg 1.17.5ubuntu5.7 apt 1.0.1ubuntu2.14 SourcePackage: linux-lts-utopic Title: package linux-headers-3.16.0-77 (not installed) failed to install/upgrade: unable to securely remove '/usr/src/linux-headers-3.16.0-77/arch/mips/ralink/dts/Makefile': Not a directory UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1610528/+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