Possible Duplicate:
Why does Ubuntu only show 3GB of RAM?
System reports 2.6GiB, I have 8GB installed in the machine.
In previous versions when installing 32 bit versions the GRUB entry would mention "pae", physical address extension, on the list, but not with this.
Any chance I can get that set up correctly without doing a reinstall?
System details: i5 2500K on ASRock Z68M-ITX/HT
steven@steven-desktop:~$ uname -a
Linux steven-desktop 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686 i686 i386 GNU/Linux
steven@steven-desktop:~$ free -m
total used free shared buffers cached
Mem: 2688 1310 1378 0 113 562
-/+ buffers/cache: 633 2055
Swap: 3904 0 3904
steven@steven-desktop:~$
uname -a
when run in a terminal? That should tell us what kernel you're running. And why not alsofree -m
while we're at it, which shows how much RAM the system thinks you have.