Re: Building an useful list to keep an eye on when migrating from i386

[Goswin von Brederlow <brederlo@informatik.uni-tuebingen.de>]

ismael@nerim.net writes:

> Hi,
>
> I was looking for this information, maybe this trick will be useful for
> someone (or maybe there is an easier way to do it).
>
> I wished to know exactly which packages installed on my i386 Debian would
> not be available on a newly installed amd64 Debian.
>
> First, from your i386 Debian, make a raw list of installed packages. I do
> that like this :
> $ dpkg --get-selections | sed -e '/\tinstall/!d ; s/^\([^\t]*\).*/\1/' >
> i386_debian_pkg_list.txt
>
> Next, from your amd64 Debian, make a raw list of available packages. You
> can do like this :
> $ apt-cache dumpavail | sed -e '/^Package:/!d ; s/^Package: \(.*\)/\1/' >
> amd64_debian_avail_list.txt

I find grep-dctrl is better suited for this:

apt-cache dumpavail | grep-dctrl "" -n -s Package

or if you don't have amd64 installed just:

grep-dctrl "" -n -s Package dists/sarge/main/binary-amd64/Packages

> Then, get the list of packages you won't be able to install :
> $ cat i386_debian_pkg_list.txt amd64_debian_avail_list.txt
> amd64_debian_avail_list.txt | sort | uniq -u
>
>
> Great, I only have 200 packages that I won't be able to install on my new
> amd64 system, in which 133 packages have been manually installed or
> obsoleted on my i386 Debian. In the 67 packages leaving, I see only 3~4
> packets for which I would make a 32 bits chroot. Quite enjoying :)

May I ask what those 3~4 packages are?

> -- 
> Jonathan ILIAS

MfG
        Goswin