[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
930447 at bugs.launchpad.net
Wed Aug 8 09:27:54 UTC 2012
+1 for Luiz's iso image which has worked perfectly for me on HP Pavilion
ZE4900. I first tried using the netboot mini.iso but this was
complicated (even thought it is stated to be 'non-pae' you have to
select advanced mode or it uses pae kernel) and very very slow for
downloading. And as others have noted David Henningsson's iso does not
fit on a CD.
Luiz's iso just works - thanks!
I guess that there is no point updating the kernel when advised from
update manager because all updated kernels will be pae only? And maybe
automatic security updates needs to be turned off to prevent this
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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:
Status in “syslinux” package in Ubuntu:
Status in Baltix GNU/Linux:
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.
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.version: 1RETDRWW (3.23 )
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.version: Not Available
dmi.product.version: ThinkPad T42
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