Errors with the following: This kernel requires the following features not present on the CPU: 0:6 Unable to boot- please use a kernel appropriate for your CPU Reproducible: Always This does not occur when I boot from the kernel on the minimal livecd.
http://forums.gentoo.org/viewtopic-p-5080419.html#5080419
Which ISO did you download?
the i686 livecds. The md5s checked out too.
Strange. Would you be able to download a couple ISO images to test to try to resolve this?
(In reply to comment #4) > Strange. > > Would you be able to download a couple ISO images to test to try to resolve > this? > Yeah, I don't have a problem with that. Bring em on :)
The same thing is occurring for me with the i686 beta2 and beta2r1 iso's on VirtualBox with an Athlon 64 X2 6400+ host. The beta1 iso works fine.
*** Bug 220259 has been marked as a duplicate of this bug. ***
apparently it's due to PAE (http://en.wikipedia.org/wiki/Physical_Address_Extension) http://forums.virtualbox.org/viewtopic.php?p=14665&sid=0e8c589f9b488aa7c68b25858d86bd87 https://lists.linux-foundation.org/pipermail/bugme-new/2008-February/017728.html
So...which kernel option do we need to enable/disable to fix this?
(In reply to comment #9) > So...which kernel option do we need to enable/disable to fix this? > CONFIG_HIGHMEM64G=y is the answer. http://books.google.ca/books?id=1rFLGKO0dywC&pg=PA128&lpg=PA128&dq=linux+pae&source=web&ots=WfbC44xEc9&sig=UTBH-X_MnPunT7lfPx8SKZbscz8&hl=en#PPA128,M1
I can confirm that the liveCD iso boots in VirtualBox if PAE is enabled for the virtual machine.
Nice. So we cannot support more than 4GB of RAM on x86. Oh well... agaffney: Just switch it back to 4GB from 64GB.
(In reply to comment #12) > Nice. So we cannot support more than 4GB of RAM on x86. Oh well... > > agaffney: Just switch it back to 4GB from 64GB. Is it possible to provide both kernels: PAE enabled and PAE disabled? That's like other distributions answer same problem...
Why? It seems like a massive waste of time/resources to support 2 kernels for one kernel option. I'd rather see us ship a single kernel, since that's all the we need for installation, and let people with > 4GB of RAM change the one option when compiling their own kernel. Nightmorph: Can we add a note to the Handbook for x86 stating that if you have more than 4GB of RAM you need to change the CONFIG_HIMEM option to CONFIG_HIGHMEM64G? I didn't even think about the mobile stuff possibly not supporting PAE.
OK, this is fixed in SVN...
(In reply to comment #14) > Nightmorph: Can we add a note to the Handbook for x86 stating that if you have > more than 4GB of RAM you need to change the CONFIG_HIMEM option to > CONFIG_HIGHMEM64G? Done. It's almost the sort of thing that we'd leave out of the handbook, as it's such an exceptional edge case that anyone who has it in their x86 box knows what to do. Sort of like the hundreds of other necessary individual config options we don't cover in the handbooks. However, since you requested it, it's in. Note that it's only in the networked x86 HB, as of course networkless users just get the kernel from the liveCD. Feel free to re-CC me later/as needed. Fixed for now. :)
*** Bug 221995 has been marked as a duplicate of this bug. ***
*** Bug 224457 has been marked as a duplicate of this bug. ***
This should be fixed in 2008.0, which is now released.
