[Ubuntu 12.10] "This kernel requires the following feautures not present on this CPU: PAE"

Asked by adom he on 2012-12-01

i downloaded ubuntu 12.10, and used unetbootin to make a bootable usb stick, after i installed ubuntu 12.10 i get a message that says... This kernel requires the following features not present on this CPU : pae
unable to boot- use a kernal appropriate for your CPU....
i have a dell latitude D505 laptop

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Solved by:
Warren Hill
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adom he (doobapooba1) said : #2

i get lost on step 2
    rename the downloaded "vmlinuz-3.5.0-17-wt-non-pae_3.5.0-17.28_i386" file to "vmlinuz" and copy it to the USB stick, under the "casper" folder, replacing the already existing "vmlinuz" file.
    rename the downloaded "initrd-3.5.0-17-wt-non-pae_3.5.0-17.28_i386.lz" file to "initrd.lz" and copy it to the USB stick, under the "casper" folder, replacing the already existing "initrd.lz" file

N1ck 7h0m4d4k15 (nicktux) said : #3


the easiest way to install Ubuntu 12.04 non-pae is through another Ubuntu Official flavor that supports non-pae .

Lubuntu 12.04 supports non-pae processors and Xubuntu 12.04 as well.

This thread in Ubuntu-Forums.org will illuminate you about what happen

I would prefer the Lubuntu and I would stuck with it , as a very light (low-resources) desktop environment but you can do anything you want :-)
I assume the PC is old one , because all of moderns PCs supports the PAE feature. So maybe Unity is a bit heavy (?)

If you want to install Unity .. just apply this command in terminal (lxterminal), after you make all updates

sudo apt-get install ubuntu-desktop

and unity should be there.

Have a good Install !


N1ck 7h0m4d4k15 (nicktux) said : #4

Of course if you want the 12.10 version , you can upgrade through 12.04 . But think about this twice , because 12.10 considered as heaviest that 12.04.


Best Warren Hill (warren-hill) said : #5

If your computer is old enough that it can't support PAE then running Ubuntu 12.10 even with a non-pae kernel you probably would find it too slow to use comfortably.

I would recommend Lubuntu 12.04, Lubuntu 12.10 has PAE kernel so wont work. However 12.04 was non PAE.

Download is here


Or take a look here


adom he (doobapooba1) said : #6

Thanks Warren Hill, that solved my question.