[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
saejin
930447 at bugs.launchpad.net
Wed Aug 15 05:21:58 UTC 2012
I must agree with Jeff on #132. I have been using Ubuntu since (I think) 6.04 I have current generation hardware without the PAE issue.
I faithfully upgraded with each release, and worked hard to work around the NVidia garbage for old KVM switches that do not allow the driver to see the hardware. 12.04 has been the first release that has consistently frozen, which seems related to the amount of video displayed. OK I thought, This has had to many generations of upgrade. Time to start clean.
I downloaded the 64 bit live disk. IT WOULD NOT BOOT! (Did it multiple times with multiple systems always doing the checksums) So I have a system that runs on 12.04 (and freezes) and I can not do a clean install.
So I tried Fidora 19 (heritic) and it seems just fine..... hummm what to do?
Please fix the live disk problem!
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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:
Won't Fix
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.
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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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