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From: Paul Hartman <paul.hartman+gentoo@gmail.com>
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Subject: Re: [gentoo-user] Compare two Gentoo machines - please help
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On Tue, May 17, 2011 at 8:42 AM, Helmut Jarausch
<jarausch@igpm.rwth-aachen.de> wrote:
> Hi,
>
> I have two (nearly) identical machines, both running ~amd64 Gentoo up-
> to-date and with a (nearly) identical set of installed packages.
>
> Still, on one of these machines KDE crashes with that infamous polkit-
> kde-authentication-agent-1 segmentation fault.
>
> On the other machine there is no problem.
>
> How can one smartly compare two Gentoo installations.
>
> Currently I would have to produce an md5sum of all files in
> /etc /usr /var and / and compare these. But there are dozens of
> thousands of files in these directories.
You could use rsync with =96dry-run to tell you what's different
(without actually transferring any files), or you could perhaps use
diff over ssh to compare a whole tree at once.