Debian AMD64 label for its version of x86 64bit platform operating system often leads to misunderstanding that the installer only supports AMD CPU only. In fact the label was meant to support Intel based x86-64 bit CPU as well (such as the Core Duo processor) in addition of AMD machines.
Why Debian use ‘AMD64’ ?
The source of confusion traces back when AMD being the first to design the instruction set for the 64bit version of x86 CPUs (for Athlon 64) back in 2002. Back then Intel hasn’t produced 64bit CPU yet making AMD the sole vendor for 64bit x86 CPU. The Debian project elected to support this architecture with the name AMD64.
Does Debian AMD64 works on Intel Core 2 Duo CPU ?
To make the story short, Intel then produces its own x86 64bit line of CPU base on AMD design. Since there are similarities, so both AMD64 and EM64T (Intel x86 64bit) shares instruction set design practically Debian AMD64 bit works on Intel CPU too (that includes Core 2 Duo CPU)
The confusion persists as Debian (and previously Ubuntu), still uses the AMD64 to identify with x86-64 platform which most other GNU/Linux distro doesnt (Fedora, Red Hat, Kanotix, Cent OS). In this case, I would prefer Debian to change its AMD64 labelling to ‘x86-64’ in order to refer to 64bit x86 based machines.
Conclusion
Debian still stuck with the old AMD64 labelling despite x86-64 is not limited to AMD CPU only and if you are wondering which version of Debian to install on your Intel Core 2 Duo computer, then please choose AMD64 with confidence.
[tags]debian,ubuntu,amd64,intel,amd,feisty fawn, gutsy gibbon[/tags]
A short history lesson:
– AMD invents the extension, calls it x86-64.
– Linux, the first OS that supports x86-64, calls the arch accordingly.
– AMD renames x86-64 to amd64, to make clear they invented it.
– Intel implements amd64 support, but calls it em64t, to trick users into thinking they didn’t copy from AMD.
– Intel asks the Linux kernel devs to rename the arch to em64t, or at least add em64t as an alias. Linus refuses, tells Intel that he would rather call the whole arch amd64 system-wide.
– Intel asks Microsoft to rename Windows XP amd64, and they do. Microsoft invents the x86 name, maybe to please both parties, or maybe to make mere users think Microsoft invented amd64.
– SUN, being the opportunists they are, call the Solaris arch x64 too.
Resume: x86-64 (original name) == amd64 (official standard name) == em64t (Intel trademark) == x64 (Microsoft/ SUN buzzword)… ;-)
I always say this mantra to my friend, “Kalau takut dengan risiko, jangan bicara tentang architecture x86_64”
Maybe you can file a bug report to Debian? I’m sure a lot of people will benefit from that bug report.
ya ya,
debian amd64 is for intel and amd cpus