I'm reprinting what I wrote in comment #105 because it is still so very easy to install PAE, though it does require a little effort.
1) Download ISO of ubuntu flavor you wish to use, for example, xubuntu. I wil use the name xubuntu.iso, for convenience. 2) partition and format USB stick, in this example, /dev/sdb and /dev/sdb1. The USBStick has to be larger then the iso. Use mkvfat for formatting of /dev/sdb1. 3) Eject and insert the USB to have the automounter mount the USB drive. Make note of the location. 4) Use grub to install grub to the USB stick grub-install --no-floppy --root-directory=/media/ubuntu/2341-af31/ (obviously this will have to match the mounted path) 5) grub-mkconfig > /meda/ubuntu/2341-af31/boot/grub/grub.cfg Open grub.cfg in your favorite editor and remove all the menuentry sections to replace it with the following. menuentry "Xubuntu (32bit)" { iso_path=/xubuntu-13.10-dvd-i386.iso export iso_path search --set --file $iso_path loopback loop $iso_path root=(loop) configfile /grub/loopback.cfg loopback --delete loop } Save, unmount and reboot from the USB stick. What will happen is, the USB stick will be booted as usual by grub, grub will then do a loopback mount of the iso, as is (so no modification to it required). The beauty of this all is, you can add MORE iso's and just add menu entries for them. So xubuntu 32bit, 64bit, gnomebuntu, you name it, you can add it. The only requirement is that the iso does actually support grub booting (e.g. has the /grub/loopback.cfg). Not all iso's have this! After the installer has finished, it is required however to install fake-pae to make updates function properly, so to that extend, this bugreport is still relevant. -- 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/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux Status in “linux” package in Ubuntu: Confirmed Status in “syslinux” package in Ubuntu: Confirmed Status in Baltix GNU/Linux: Triaged Bug description: Ubuntu 12.04 doesn't start from Desktop CD or USB with syslinux boot loader on Pentium M 1.6Ghz or faster Pentium M CPU - displays error message about missing PAE feature in CPU, but *the same* *Ubuntu 12.04* Desktop CD/LiveUSB starts fine on *the same CPU* (and same PAE kernel) if GRUB boot loader is used, for example when WUBI or LiveUSB with GRUB boot loader, like Multisystem (http://liveusb.info/dotclear/index.php?pages/install ) is used! The error message is: "This kernel requires the following features not present on the CPU: pae. Unable to boot - please use a kernel appropriate for you CPU." THIS IS AN IMPORTANT REGRESSION! People are able to install and successfully use Ubuntu 12.04 on such pretty new hardware, like IBM Thinkpad T42 laptop with Pentium M 1700Mhz processor, but the bug in syslinux (or something related) forbids Ubuntu 12.04 installation. This bug is reproducible on lots of computers, there are several log files and /proc/cpuinfo file attached to this bugreport, AFAIK it's enough to reopen this bug. --- ApportVersion: 1.23-0ubuntu4 Architecture: i386 CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied MachineType: IBM 2373PPU dmi.bios.date: 06/18/2007 dmi.bios.vendor: IBM dmi.bios.version: 1RETDRWW (3.23 ) dmi.board.name: 2373PPU 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:bvr1RETDRWW(3.23):bd06/18/2007:svnIBM:pn2373PPU:pvrThinkPadT42:rvnIBM:rn2373PPU:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable: dmi.product.name: 2373PPU dmi.product.version: ThinkPad T42 dmi.sys.vendor: IBM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+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