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 (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1226181 Title: package linux-headers-3.2.0-38-generic 3.2.0-38.60 failed to install/upgrade: failed to stat (dereference) existing symlink `/usr/src/linux- headers-3.2.0-38-generic/include/linux/pwm_backlight.h': Input/output error Status in “linux” package in Ubuntu: Invalid Bug description: This problem has existed for months. I have tried it from both the Update Manager and from the command line. Sample command line output: me@myComputer:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: linux-generic linux-headers-generic linux-image-generic The following packages will be upgraded: linux-headers-3.2.0-38-generic 1 upgraded, 0 newly installed, 0 to remove and 3 not upgraded. Need to get 985 kB of archives. After this operation, 4,096 B of additional disk space will be used. Do you want to continue [Y/n]? Y Get:1 http://ca.archive.ubuntu.com/ubuntu/ precise-updates/main linux-headers-3.2.0-38-generic amd64 3.2.0-38.61 [985 kB] Fetched 985 kB in 2s (335 kB/s) (Reading database ... 802219 files and directories currently installed.) Preparing to replace linux-headers-3.2.0-38-generic 3.2.0-38.60 (using .../linux-headers-3.2.0-38-generic_3.2.0-38.61_amd64.deb) ... Unpacking replacement linux-headers-3.2.0-38-generic ... dpkg: error processing /var/cache/apt/archives/linux-headers-3.2.0-38-generic_3.2.0-38.61_amd64.deb (--unpack): failed to stat (dereference) existing symlink `/usr/src/linux-headers-3.2.0-38-generic/include/linux/pwm_backlight.h': Input/output error Errors were encountered while processing: /var/cache/apt/archives/linux-headers-3.2.0-38-generic_3.2.0-38.61_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) ProblemType: Package DistroRelease: Ubuntu 12.04 Package: linux-headers-3.2.0-38-generic 3.2.0-38.60 ProcVersionSignature: Ubuntu 3.2.0-53.81-generic 3.2.50 Uname: Linux 3.2.0-53-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.4 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dylan 2360 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xd0400000 irq 44' Mixer name : 'Analog Devices AD1983' Components : 'HDA:11d41983,17aa1010,00100400' Controls : 26 Simple ctrls : 15 Date: Sun Sep 15 14:41:37 2013 DuplicateSignature: package:linux-headers-3.2.0-38-generic:3.2.0-38.60:failed to stat (dereference) existing symlink `/usr/src/linux-headers-3.2.0-38-generic/include/linux/pwm_backlight.h': Input/output error ErrorMessage: failed to stat (dereference) existing symlink `/usr/src/linux-headers-3.2.0-38-generic/include/linux/pwm_backlight.h': Input/output error HibernationDevice: RESUME=UUID=5f767dbb-fb11-4531-9e17-b517cb049fe4 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) IwConfig: lo no wireless extensions. eth0 no wireless extensions. MachineType: LENOVO 8810YDP MarkForUpload: True ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-53-generic root=UUID=5c6e00d3-3423-4a6e-9c9c-2a7a0356a665 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: grub-pc 1.99-21ubuntu3.10 RfKill: SourcePackage: linux Title: package linux-headers-3.2.0-38-generic 3.2.0-38.60 failed to install/upgrade: failed to stat (dereference) existing symlink `/usr/src/linux-headers-3.2.0-38-generic/include/linux/pwm_backlight.h': Input/output error UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/12/2007 dmi.bios.vendor: LENOVO dmi.bios.version: 2JKT37AUS dmi.board.name: LENOVO dmi.board.vendor: LENOVO dmi.board.version: NONE dmi.chassis.asset.tag: ������������������������� dmi.chassis.type: 3 dmi.chassis.vendor: LENOVO dmi.chassis.version: NONE dmi.modalias: dmi:bvnLENOVO:bvr2JKT37AUS:bd07/12/2007:svnLENOVO:pn8810YDP:pvrThinkCentreM55:rvnLENOVO:rnLENOVO:rvrNONE:cvnLENOVO:ct3:cvrNONE: dmi.product.name: 8810YDP dmi.product.version: ThinkCentre M55 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1226181/+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