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: systemd (Ubuntu) Importance: Undecided => Low ** Changed in: systemd (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1697227 Title: package systemd 229-4ubuntu17 failed to install/upgrade: sub-processo script pre-removal instalado retornou estado de saída de erro 1 Status in systemd package in Ubuntu: Invalid Bug description: erro ProblemType: Package DistroRelease: Ubuntu 16.04 Package: systemd 229-4ubuntu17 ProcVersionSignature: Ubuntu 4.4.0-78.99-generic 4.4.62 Uname: Linux 4.4.0-78-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.6 Architecture: amd64 Date: Sat Jun 10 21:09:51 2017 ErrorMessage: sub-processo script pre-removal instalado retornou estado de saída de erro 1 InstallationDate: Installed on 2015-10-14 (605 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) Lsusb: Bus 002 Device 003: ID 0402:9665 ALi Corp. Gateway Webcam Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Acer Aspire 4741 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-78-generic root=UUID=e0438009-15b4-480a-aae4-a625bcd8880d ro quiet splash vt.handoff=7 RelatedPackageVersions: dpkg 1.18.4ubuntu1.2 apt 1.2.20 SourcePackage: systemd SystemdDelta: [EXTENDED] /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf [EXTENDED] /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf [EXTENDED] /etc/systemd/system/display-manager.service → /lib/systemd/system/display-manager.service.d/xdiagnose.conf 3 overridden configuration files found. Title: package systemd 229-4ubuntu17 failed to install/upgrade: sub-processo script pre-removal instalado retornou estado de saída de erro 1 UpgradeStatus: Upgraded to xenial on 2017-05-17 (24 days ago) dmi.bios.date: 03/02/2010 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: V1.04 dmi.board.name: Aspire 4741 dmi.board.vendor: Acer dmi.board.version: Rev dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: Rev dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.04:bd03/02/2010:svnAcer:pnAspire4741:pvrRev:rvnAcer:rnAspire4741:rvrRev:cvnAcer:ct10:cvrRev: dmi.product.name: Aspire 4741 dmi.product.version: Rev dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1697227/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp