please reboot with this kernel boot parameter added: systemd.log_level=debug
Then let the system boot up, and then perform a shutdown, to reproduce the problem. Then start the system back up (you can remove the kernel boot parameter) and capture the previous boot's journal, which should include the problem reproduction while debug is enabled; you can use the command: $ journalctl -k -b -1 > /tmp/lp1905166.log which will capture the log output from the previous boot. ** Changed in: systemd (Ubuntu) Status: Confirmed => Incomplete -- 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/1905166 Title: systemd-shutdown cannot detach DM Status in systemd package in Ubuntu: Incomplete Bug description: when powering down the system systemd cannot unmount / systemd-shutdown[1]: Could not detach DM /dev/dm-0: Device or resource busy systemd-shutdown[1]: Failed to finalize DM devices, ignoring reboot: Power down as a result at each startup the filesystem is checked: Press Ctrl+C to cancel all filesystem checks in progress If systemd cannot unmount / that might not be a problem but it should be less noisy and not result in a filesystem check after each reboot. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: systemd 245.4-4ubuntu3.3 ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65 Uname: Linux 5.4.0-54-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.12 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sun Nov 22 11:40:05 2020 MachineType: Dell Inc. Latitude 7410 ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-54-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7 SourcePackage: systemd SystemdDelta: [EXTENDED] /usr/lib/systemd/system/rc-local.service → /usr/lib/systemd/system/rc-local.service.d/debian.conf [EXTENDED] /usr/lib/systemd/system/user@.service → /usr/lib/systemd/system/user@.service.d/timeout.conf 2 overridden configuration files found. UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/11/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.4.1 dmi.board.name: 0M5G57 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 31 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.4.1:bd10/11/2020:svnDellInc.:pnLatitude7410:pvr:rvnDellInc.:rn0M5G57:rvrA00:cvnDellInc.:ct31:cvr: dmi.product.family: Latitude dmi.product.name: Latitude 7410 dmi.product.sku: 09CD dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1905166/+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