HOWTO : Use more than 3GB RAM on Ubuntu 9.10 Desktop

If you have more than 3GB RAM on your 32-bit system, you can install PAE kernel of Ubuntu 9.10.



Step 1 :



You need to install Ubuntu 9.10 i386 as usual. Then,



sudo apt-get update

sudo apt-get upgrade



*If kernel is updated, please reboot and then go for further steps.



Step 2 :



sudo apt-get install linux-generic-pae

sudo apt-get install linux-image-generic-pae linux-headers-generic-pae



Step 3 :



Reboot to the new kernel - with "pae" extension.



After boot up, issue the following command to make sure you are in the PAE kernel.



uname -r



The output may look like this :



2.6.31-14-generic-pae



Step 4 :



sudo apt-get remove linux-generic

sudo apt-get remove linux-image-generic linux-headers-generic

sudo apt-get remove linux-image-`uname -r | grep "pae" | cut -d- -f1,2,3 | cut -c 1-`

sudo apt-get remove linux-headers-`uname -r | grep "pae" | cut -d- -f1,2,3 | cut -c 1-`



You may also need to do the following step.



sudo update-initramfs -u

sudo update-grub2



Step 5 :



Reboot your system.



That's all! See you.