Not sure exactly how I got around this, but I think I left all windows open; opened a new terminal; ran apt update again, and that successfully completed which allowed me to close the upgrade window. I rebooted, and the system seems stable.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1575711 Title: package linux-image-extra-4.2.0-25-generic 4.2.0-25.30 failed to install/upgrade: package linux-image-extra-4.2.0-25-generic is not ready for configuration cannot configure (current status 'half- installed') Status in linux package in Ubuntu: Incomplete Bug description: Partial upgrade failed. package linux-image-extra-4.2.0-25-generic is not ready for configuration cannot configure (current status 'half-installed') ============================ ProblemType: Package DistroRelease: Ubuntu 15.10 Package: linux-image-extra-4.2.0-25-generic 4.2.0-25.30 ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5 Uname: Linux 4.2.0-35-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: stephen 1721 F.... pulseaudio /dev/snd/controlC0: stephen 1721 F.... pulseaudio Date: Wed Apr 27 07:36:35 2016 DpkgHistoryLog: Start-Date: 2016-04-27 07:36:26 Upgrade: oxideqt-codecs:amd64 (1.13.6-0ubuntu0.15.10.1, 1.14.7-0ubuntu0.15.10.1), firefox-locale-en:amd64 (45.0.2+build1-0ubuntu0.15.10.1, 46.0+build5-0ubuntu0.15.10.2), firefox:amd64 (45.0.2+build1-0ubuntu0.15.10.1, 46.0+build5-0ubuntu0.15.10.2), liboxideqtcore0:amd64 (1.13.6-0ubuntu0.15.10.1, 1.14.7-0ubuntu0.15.10.1), liboxideqtquick0:amd64 (1.13.6-0ubuntu0.15.10.1, 1.14.7-0ubuntu0.15.10.1), liboxideqt-qmlplugin:amd64 (1.13.6-0ubuntu0.15.10.1, 1.14.7-0ubuntu0.15.10.1), docker-engine:amd64 (1.11.0-0~wily, 1.11.1-0~wily) DuplicateSignature: package:linux-image-extra-4.2.0-25-generic:4.2.0-25.30:package linux-image-extra-4.2.0-25-generic is not ready for configuration cannot configure (current status 'half-installed') ErrorMessage: package linux-image-extra-4.2.0-25-generic is not ready for configuration cannot configure (current status 'half-installed') HibernationDevice: RESUME=UUID=3b90a5f2-f4d2-4642-a833-3b8fe62b8b05 InstallationDate: Installed on 2015-10-23 (186 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150924) MachineType: Notebook P7xxDM(-G) ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic.efi.signed root=UUID=eb9c58d3-5ba8-43d9-b8df-af22b7e4076e ro quiet splash nomodeset vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: grub-pc N/A SourcePackage: linux Title: package linux-image-extra-4.2.0-25-generic 4.2.0-25.30 failed to install/upgrade: package linux-image-extra-4.2.0-25-generic is not ready for configuration cannot configure (current status 'half-installed') UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/19/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.05.03 dmi.board.asset.tag: Tag 12345 dmi.board.name: P7xxDM(-G) dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.03:bd09/19/2015:svnNotebook:pnP7xxDM(-G):pvrNotApplicable:rvnNotebook:rnP7xxDM(-G):rvrNotApplicable:cvnNoEnclosure:ct10:cvrN/A: dmi.product.name: P7xxDM(-G) dmi.product.version: Not Applicable dmi.sys.vendor: Notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575711/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp