Well, it was an update-manager update. I'm not sure why the user triggered one, but probably a high-level graphical tool should not allow that. For APT, it does not make sense to prevent people from upgrading itself. That said, livecd tools could create a pre-install hook that fails with "This is a live system, it does not support upgrades"?
** Package changed: systemd (Ubuntu) => update-manager (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1736240 Title: package udev 229-4ubuntu21 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 Status in apt package in Ubuntu: New Status in update-manager package in Ubuntu: New Bug description: I can't install updates, use my touchpad or open drop down menu. ProblemType: Package DistroRelease: Ubuntu 16.04 Package: udev 229-4ubuntu21 ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17 Uname: Linux 4.10.0-28-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.13 Architecture: amd64 Date: Mon Dec 4 19:56:22 2017 ErrorMessage: subprocess installed post-installation script returned error exit status 1 Lsusb: Bus 002 Device 002: ID 0781:5581 SanDisk Corp. Ultra Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bus 001 Device 002: ID 04f2:b56d Chicony Electronics Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP ENVY x360 m6 Convertible ProcKernelCmdLine: file=/cdrom/multiboot/hostname-16.04.3-desktop-amd64/preseed/hostname.seed boot=casper cdrom-detect/try-usb=true persistent persistent-path=/multiboot/hostname-16.04.3-desktop-amd64 noprompt floppy.allowed_drive_mask=0 ignore_uuid live-media-path=/multiboot/hostname-16.04.3-desktop-amd64/casper/ initrd=/multiboot/hostname-16.04.3-desktop-amd64/casper/initrd.lz quiet splash --- maybe-ubiquity RelatedPackageVersions: dpkg 1.18.4ubuntu1.3 apt 1.2.24 SourcePackage: systemd Title: package udev 229-4ubuntu21 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/21/2017 dmi.bios.vendor: Insyde dmi.bios.version: F.41 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 81AC dmi.board.vendor: HP dmi.board.version: 53.27 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.41:bd08/21/2017:svnHP:pnHPENVYx360m6Convertible:pvrType1ProductConfigId:rvnHP:rn81AC:rvr53.27:cvnHP:ct31:cvrChassisVersion: dmi.product.name: HP ENVY x360 m6 Convertible dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1736240/+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
