Question

How can I get the current OS architecture using Mono?

Answer 1

This may be possible.

There’s no way to do this is proper plain Jane .NET, Environment (where’d you expect this to be) doesn’t expose it.

But Mono has the Mono.Unix.Native namespace (you’ll need to add a reference to Mono.Posix.dll), which has the Syscall class. This exposes uname, which may give you what you want; this doesn’t seem terribly standard across Linux/Unix versions, and I’m not sure how much normalizing Mono is doing here.

Mono.Unix.Native.Utsname results;
var res = Mono.Unix.Native.Syscall.uname(out results);
if(res != 0)
{
  throw new Exception("Syscall failed!");
}

When I run this on my Mac, results.machine is set to x86_64. I don’t have a Linux machine handy to test for consistency; but this would be the way to do it if there’s any at all.