"But would like a more permanent solution" - I agree with that! I upgrade XUbuntu 14.10 to 15.10 and then software update kernel 4.2.0-25-generic and then I got same error.
The problem solved as Derek wrote, but what about next update? -- 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/1528047 Title: package linux-image-4.2.0-22-generic (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1 Status in linux package in Ubuntu: Confirmed Bug description: This machine (I believe) has PAE capabilities (Pentium-M), but 15.10 has become very unforgiving of machines that don't report PAE flags in /proc/cpuinfo. I had a royal pain in the behind upgrading from 15.04 (where --forcepae just did the business) to 15.10 because this package wouldn't install and only managed to retrive a completely stuffed machine by hacking /proc/cpuinfo to force the PAE flag on there. This is of course temporary. It would be useful if whoever maintains the code that does /proc/cpuinfo would recognize the exception created by Intel with not correctly reporting PAE and fix this flag if future Ubuntu releases are going to barf so badly on not seeing it. ProblemType: Package DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-22-generic (not installed) ProcVersionSignature: Ubuntu 4.2.0-21.25-generic 4.2.6 Uname: Linux 4.2.0-21-generic i686 ApportVersion: 2.19.1-0ubuntu5 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: der 1402 F.... pulseaudio Date: Sun Dec 20 20:38:38 2015 DpkgTerminalLog: Preparing to unpack .../linux-image-4.2.0-22-generic_4.2.0-22.27_i386.deb ... This kernel does not support a non-PAE CPU. dpkg: error processing archive /var/cache/apt/archives/linux-image-4.2.0-22-generic_4.2.0-22.27_i386.deb (--unpack): subprocess new pre-installation script returned error exit status 1 DuplicateSignature: package:linux-image-4.2.0-22-generic:(not installed):subprocess new pre-installation script returned error exit status 1 ErrorMessage: subprocess new pre-installation script returned error exit status 1 HibernationDevice: RESUME=UUID=8c5a77c4-3860-4ef9-8bed-60184472e824 InstallationDate: Installed on 2015-01-29 (324 days ago) InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release i386 (20141022.1) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: IBM 2371EG2 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-21-generic root=UUID=332336ad-e4aa-403e-bca9-8c4d9c38a491 ro quiet splash 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 2.02~beta2-29ubuntu0.2 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux Title: package linux-image-4.2.0-22-generic (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1 UpgradeStatus: Upgraded to wily on 2015-12-17 (2 days ago) dmi.bios.date: 10/13/2004 dmi.bios.vendor: IBM dmi.bios.version: 1UET93WW (1.43 ) dmi.board.name: 2371EG2 dmi.board.vendor: IBM dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: IBM dmi.chassis.version: Not Available dmi.modalias: dmi:bvnIBM:bvr1UET93WW(1.43):bd10/13/2004:svnIBM:pn2371EG2:pvrThinkPadX40:rvnIBM:rn2371EG2:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable: dmi.product.name: 2371EG2 dmi.product.version: ThinkPad X40 dmi.sys.vendor: IBM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1528047/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp