I was testing the Lubuntu Trusty desktop i386 final iso file and had the message 'This kernel does not support a non-PAE CPU' when I tried to install the low latency kernel.
Please make the installer (or some other program part) add forcepae into /etc/default/grub and from there into /boot/grub/grub.cfg so that it will be possible to install and upgrade kernels. The *big* problem will arrive, when new kernel versions arrive, and the system wants to upgrade to them. And we can expect quite a lot of new users who come to Lubuntu and Xubuntu after the end of life of Windows XP. Let us save trouble for these new users by adding forcepae automatically to the installed system :-) -o- Just to confirm my suggested solution, I added forcepae to /etc/default/grub and ran sudo update-grub After reboot it was possible to install the new kernel (in this somewhat synthetic case the low-latency kernel), and the computer can run with it (both kernels work). -- 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/1307105 Title: Kernel install fails due PAE checks Status in “linux” package in Ubuntu: Triaged Bug description: [TRIAGE NOTE] When a user boots Ubuntu Live/Install media with 'forcepae' option, the option should automatically be added to /etc/default/grub, or kernel upgrades will refuse to install when they do not see pae capability in cpuinfo. [ORIGINAL REPORT] On Thinkpad T42 with Pentium M processor linux image upgrade fails with message "This kernel does not support a non-PAE CPU.". System was installed from ubuntu-14.04-beta2-desktop-i386.iso with "forcepae" kernel option. After install, system works, but cannot be upgraded to laters kernel. root@t42:/boot# apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these. The following packages have unmet dependencies: linux-image-extra-3.13.0-24-generic : Depends: linux-image-3.13.0-24-generic but it is not installed linux-image-generic : Depends: linux-image-3.13.0-24-generic but it is not installed E: Unmet dependencies. Try using -f. root@t42:/boot# apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: linux-image-3.13.0-24-generic Suggested packages: fdutils linux-doc-3.13.0 linux-source-3.13.0 linux-tools The following NEW packages will be installed: linux-image-3.13.0-24-generic 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. 3 not fully installed or removed. Need to get 0 B/14.6 MB of archives. After this operation, 32.3 MB of additional disk space will be used. Do you want to continue? [Y/n] (Reading database ... 196089 files and directories currently installed.) Preparing to unpack .../linux-image-3.13.0-24-generic_3.13.0-24.46_i386.deb ... This kernel does not support a non-PAE CPU. dpkg: error processing archive /var/cache/apt/archives/linux-image-3.13.0-24-generic_3.13.0-24.46_i386.deb (--unpack): subprocess new pre-installation script returned error exit status 1 Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-24-generic /boot/vmlinuz-3.13.0-24-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-24-generic /boot/vmlinuz-3.13.0-24-generic Errors were encountered while processing: /var/cache/apt/archives/linux-image-3.13.0-24-generic_3.13.0-24.46_i386.deb E: Sub-process /usr/bin/dpkg returned an error code (1) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1307105/+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
