On 2013-05-19 19:22, Chris Bainbridge wrote: >> The reason why I want people to >> check the address size is the we are working around the check, that >> should make it impossible to boot a non-pae CPU with a pae kernel. > > Fake -PAE bypasses the check to stop dpkg installing a PAE kernel. But, > even after that, the PAE kernel won't boot on a non-PAE CPU. PAE is not > something that gets enabled (or disabled) at runtime, it is actually a > replacement of functions in the kernel source (#ifdef .. #endif etc.), > so if you have a PAE kernel it will not boot on non-PAE. So it makes no > sense to ask people to check the address size on a CPU that has already > booted a PAE kernel, since the fact that it successfully booted a PAE > kernel means it must support PAE. (afaik - this is from the > documentation, I do not have a non-Pentium-M non-PAE system to test > with) > I see your point. I will look for some links, that support what you say, and change the text accordingly. If you have a link available, please send it to me :-)
Can you explain why the non-pae ubuntu code reports 32 bits physical memory, while the pae code reports 36 bits? Some people say it should report the same. But there is a difference on the computers I have tested. -o- If it is the general truth that non-pae CPUs won't boot at all, it is even harder to understand why the Pentium M CPUs are excluded by the Ubuntu developers. Why are those tests implemented (in syslinux), or why are they shutting down, and not only printing the message? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs