New answers tagged 64bit
32-bit packages on 64-bit platform First of all you need to allow your package manager to install packages with different architecture. But who is who? Apt is simple combination of wget and dpkg. The real package manager is dpkg, which provides low-level infrastructure for handling operations with real *.deb packages. So, lets see available architectures ...
I expect you have a DUAL CORE Pentium 4 and this enables you to run 64bit code. The earlier single processor P4s ran at a lower speed and only worked 32bit.
Well, this issue was fixed in Ubuntu 14.04. It also switches to USB modem mode automatically. So, upgrading to 14.04 solved the problem.
I did try to use the live CD and realized then what the problem was. For some reason when I try to boot using the live CD it never actually boots. When the Grub loader starts the computer goes into an infinite reboot loop. I had to change the boot parameters (way back when) to 'mem=3000M' and that is why it only recognized 3gb. I've since changed (grub.cfg) ...
It required to modify /etc/apt/sources.list adding i386 to downloadable architectures like that: deb [arch=amd64,i386] http://httpredir.debian.org/debian/ jessie main contrib After that you need to make apt-get update dpkg --add-architecture i386 apt-get update and to install package for i386 architecture: apt-get install ...
Don't rely on the high scoring answers to this question because these methods are not always correct. I've a computer with a Intel Atom N230 CPU which according to all of the tests mentioned is capable to support 64 bit OS'es. According to http://en.wikipedia.org/wiki/Intel_Atom#32-bit_and_64-bit_hardware_support the CPU is not capable of running 64 bit ...
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