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The release notes say in known issues "Aptitude does not work on 64-bit systems without disabling multiarch in /etc/dpkg/dpkg.cfg.d/multiarch . (831768)"

Is this going to fail my i386 stuff in my amd64 10.04 LTS to 12.04 LTS release upgrade?

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No, because we don't use aptitude to upgrade between releases. We use update-manager for that (it uses APT under the hood, but not aptitude).

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So even even though the i386 stuff will upgrade ok, does multiarch handle dependencies now for i386 stuff seamlessly? – keepitsimpleengineer May 1 '12 at 20:43
It's not entirely seamless. Libraries need to be converted to multi-arch, and packages that are going to be widely cross-installed may need some tweaking. Oh, and aptitude has better multiarch support, but it's not great yet. – tumbleweed May 2 '12 at 12:26
I upgraded my x86 system to 12.04 Gnome Classic with out problems, but my amd64 upgrade was a disaster with many things broken including a stalled multiarch update and dependency problems in installing gnome-session. – keepitsimpleengineer May 17 '12 at 14:27
Didea you have many PPAs? If it was a fairly clean system, please file a bug. – tumbleweed May 17 '12 at 15:45
This 64bit is Otto's (the Orkin man) little piece of heaven. Bug reports are being filed, yet multiach doesn't seem to be a source. The only one I got there was a lib used by google picasa/earth. I am now just tying to get 10.10>11.04 to work. – keepitsimpleengineer May 19 '12 at 20:15

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