> In CUPS everything is OK and as intended. No -- as above, the maintainer scripts need to stop cups.{socket,path} first before stopping cups.service. Also, as it seems you can entirely drop that .path unit as it's fairly useless -- we don't start cups on demand, but it always starts on boot (in a default install). It would of course be nice to fix that (as I suggested in the upstream bug).
> And there is also another bug in systemd: The *.path file as it comes with CUPS should always start CUPS (if it is not already running) if there is the keepalive file, not only if the keepalive file is newly created. It does -- that's precisely what happens here: The path unit restarts cups after the maintainer scripts stop it, and that's the core of this bug. So if anything, you want it to be less aggressive, not more :-) > cups-browsed.service contains "After=cups.service avahi- daemon.service" in its [Unit] section. Is this enough to make cups- browsed being shut down before the shutdown of CUPS is done? Yes, it is, the Before/After get inversed on stopping units. ** Changed in: cups (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1642966 Title: package cups-daemon 2.1.3-4 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1 Status in cups package in Ubuntu: Confirmed Status in init-system-helpers package in Ubuntu: Confirmed Status in systemd package in Ubuntu: Confirmed Bug description: This is in xenial-proposed, please block release to -updates accordingly :) ProblemType: Package DistroRelease: Ubuntu 16.04 Package: cups-daemon 2.1.3-4 ProcVersionSignature: Ubuntu 4.4.0-46.67-generic 4.4.24 Uname: Linux 4.4.0-46-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CupsErrorLog: Date: Fri Nov 18 11:13:15 2016 ErrorMessage: subprocess new pre-removal script returned error exit status 1 InstallationDate: Installed on 2016-05-02 (200 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) Lpstat: device for mallards-officejet-pro-8600: dnssd://Officejet%20Pro%208600%20%5BD63461%5D._ipp._tcp.local/?uuid=1c852a4d-b800-1f08-abcd-d89d67d63461 MachineType: Dell Inc. XPS 15 9550 Papersize: a4 PpdFiles: mallards-officejet-pro-8600: HP Officejet Pro 8600, hpcups 3.16.3 ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-4.4.0-46-generic.efi.signed root=UUID=3643ef37-7cee-41b3-9387-2faa819c44db ro quiet splash vt.handoff=7 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-46-generic.efi.signed root=UUID=3643ef37-7cee-41b3-9387-2faa819c44db ro quiet splash vt.handoff=7 RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.15 SourcePackage: cups Title: package cups-daemon 2.1.3-4 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/07/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 01.02.00 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd04/07/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1642966/+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