I've been playing with it on EC2 and it just works.

I just upgraded from 10.04 and it stopped my 32 bit processes from starting.

The ia32-libs package somehow uninstalled itself. When I tried to reinstall it, it installed 300 mb worth of random libs instead of the usual 30.

I'm not sure upgrading servers is the best pattern to use when running on cloud platforms. It's really easy to just launch a new instance and redeploy your software (and make that process as automated as possible)

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