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Date: Thu, 22 Jul 2010 20:14:56 +0100
From: Etaoin Shrdlu <shrdlu@unlimitedmail.org>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Impossible question... Swithcing from "no
 multilib" to "multilib"
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On Thu, 22 Jul 2010 11:56:50 +0200 Andrea Momesso
<momesso.andrea@gmail.com> wrote:

> That's impossible, isn't it?
> 
> Swithcing profile and reemerging everithing isn't gonna work? Even from a 
> chroot?
> 
> Should I reinstall a new stage from scratch? Adobe stopped providing
> flash for linux 64 bit, and I some of the sites I need to visit for work
> need it. Mantaining a chroot is not worth the effort, so I really want to
> switch.

The only time I had to do that I followed these instructions:

http://www.gentoo-wiki.info/HOWTO_AMD_64#Howto_switch_to_multilib

and it did work just fine (I'm writing from that computer now).

************ WARNING WARNING WARNING ************************

Take backups, consider that it might not work for you, etc.