How do I install a 64-bits kernel in my Ubuntu?

How do I install a 64-bits kernel in my Ubuntu? I'm running in a machine with a 64bits CPU, but my kernel shows me (when I use uname -m command) that I'm running on 32bits (686). How can I change the kernel version to use all capacity of my machine?
Asked by: Guest \| Views: 228

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bert [Entry]

"You need to download and install the 64-Bit version of Ubuntu.

There is no way to do a direct upgrade from 32-Bit to 64-Bit.

You can get the X86_64 version from the Ubuntu download site here"