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3
votes
1answer
474 views

Why does Ubuntu recommend download the 32-bit version?

Why does Ubuntu recommend download the 32-bit version? On their 32bit_and_64bit Page they even say Unless you have specific reasons to choose 32-bit, we recommend 64-bit to utilise the full capacity ...
9
votes
2answers
3k views

How can I install a 64bit Linux virtual machine on a 32bit Linux?

I've got a computer (Intel core i5) with 32bit Linux installed (ubuntu 11.04) and I would like to install a 64bit Linux virtual machine on it so I can test 64bit command-line applications on it.
6
votes
2answers
292 views

Running 32 bit app on a 64 bit Linux machine

Are there any performance drawbacks (CPU, Memory or IO) when running a 32-bit application on a 64-bit Linux? My main concern is inefficient utilization of pointers and memory blocks.
32
votes
2answers
27k views

How do I run 32-bit programs on a 64-bit Debian/Ubuntu?

I have a 64-bit (amd64 a.k.a. x86_64) Debian or Ubuntu installation. I need to run 32-bit (i386/i686) programs occasionally, or to compile programs for a 32-bit system. How can I do this with a ...
4
votes
1answer
3k views

Building 32-Bit on a 64-Bit system

I'm trying to build the PHP memcache extension (v2.2.6) for i386 (32bit) on my x86_64 Ubuntu 11.04. ./configure uses config.guess by default (which outputs x86_64-unknown-linux-gnu on my system) but ...
5
votes
2answers
2k views

OpenBSD: 32 bit or 64 bit

I would like to use the 64 bit version of OpenBSD, but I'm not really sure how good it works. Are there any known problems? Is the 32 bit version more recommended for productive environment?
4
votes
3answers
2k views

How come I installed Ubuntu 64 bit on a Pentium 4 machine?

I have just tried booting the Ubuntu 10.10 64 bit live USB on this machine and to my amazement everything works fine. I even installed the system, after which I checked with uname -a and the result is ...