Saturday, February 16, 2013

Wubi missing i386 architecture

Just a quick post to highlight a bug in the disk images for Wubi 64-bit. It's supposed to have multiarch support so you can install 32-bit packages, but it's missing. I don't know a lot about it - other than to notice the bug report and a bunch of user support requests, but it looks like the way around it is to run:

sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install ia32-libs

Note that this only affects users who installed 64-bit Ubuntu by running wubi.exe standalone. If you installed from the ISO or installed any other flavour e.g. Kubuntu, Edubuntu, Lubuntu, Xubuntu, Mythbuntu it wouldn't apply.


  1. Hi, I'm Some Random Ubuntu Lover from Ask Ubuntu, I also noticed that Wubi will only install the 64-bit versions. I have only 32-bit computers.

    1. Wubi checks your computer architecture. It doesn't matter if you're running 32-bit Windows. Instead you need to identify and lookup your CPU to confirm (but I've never seen a case where Wubi has got it wrong). If you want to force 32-bit use: wubi.exe --32bit