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Message #32738
[Bug 930447] Re: 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
hopefully, this should (hopefully) be a comprehensive list of all
affected CPU`s:
Intel(R) Celeron(R) M processor 1400MHz 00000695 00000812 00000000 A7E9F9BF
Intel(R) Celeron(R) M processor 1400Mhz 000006D6 00000812 00000000 AFE9F9BF
Intel(R) Celeron(R) M processor 1500MHz 00000695 00000812 00000000 A7E9F9BF
Intel(R) Pentium(R) M processor 1300MHz 00000695 00000816 00000180 A7E9F9BF
Intel(R) Pentium(R) M processor 1400MHz 00000695 00000816 00000180 A7E9F9BF
Intel(R) Pentium(R) M processor 1500MHz 00000695 00000816 00000180 A7E9F9BF
Intel(R) Pentium(R) M processor 1600MHz 00000695 00000816 00000180 A7E9F9BF
Intel(R) Pentium(R) M processor 1600MHz 000006D6 00000816 00000180 AFE9FBBF
Intel(R) Pentium(R) M processor 1700MHz 000006D6 00000816 00000180 AFE9F9BF
Intel(R) Pentium(R) M processor 1800MHz 000006D6 00000816 00000180 AFE9F9BF
Intel(R) Pentium(R) M processor 2000MHz 000006D6 00000816 00000180 AFE9F9BF
the numbers after the cpu type are CPUID 0000_0001 (like on
https://help.ubuntu.com/community/Lubuntu-fake-PAE#Test )
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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:
Invalid
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.
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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
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