Public bug reported: I'm no longer able to print. I'm not sure exactly when the problem started. At some point, apt-get started listing some cups packages as no longer needed. I tried to install cups (I don't know when it was removed - I never removed it intentionally.) The installation fails.
sudo apt-get install cups Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: cups : Depends: libcups2 (= 2.1.3-4) but 2.1.3-4ubuntu0.2 is to be installed Depends: libcupscgi1 (>= 1.4.2) but it is not going to be installed Depends: libcupsmime1 (>= 1.4.0) but it is not going to be installed Depends: cups-core-drivers (>= 2.1.3-4) Depends: cups-daemon (>= 2.1.3-4) Recommends: printer-driver-gutenprint but it is not going to be installed E: Unable to correct problems, you have held broken packages. ProblemType: Package DistroRelease: Ubuntu 16.04 Package: cups-browsed (not installed) ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44 Uname: Linux 4.4.0-66-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.5 AptOrdering: cups-browsed: Install cups-browsed: Configure NULL: ConfigurePending Architecture: amd64 CupsErrorLog: Date: Wed Mar 29 08:50:18 2017 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2017-01-17 (70 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) Lpstat: Error: command ['lpstat', '-v'] failed with exit code 1: lpstat: Bad file descriptor MachineType: Dell Inc. Precision Tower 7810 Papersize: letter PpdFiles: Hewlett-Packard-HP-LaserJet-P3010-Series: HP LaserJet P3010 Series Postscript (recommended) Xerox-WorkCentre-7335: Xerox WorkCentre 7335 Foomatic/Postscript (recommended) ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-66-generic root=UUID=79afa339-6674-451b-ae78-a7194535ee4d ro quiet splash vt.handoff=7 RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.19 SourcePackage: cups-filters Title: package cups-browsed (not installed) 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: 03/09/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 0GWHMW dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 7 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd03/09/2016:svnDellInc.:pnPrecisionTower7810:pvr:rvnDellInc.:rn0GWHMW:rvrA00:cvnDellInc.:ct7:cvr: dmi.product.name: Precision Tower 7810 dmi.sys.vendor: Dell Inc. ** Affects: cups-filters (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1677255 Title: package cups-browsed (not installed) failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1677255/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs