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 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 :) -- Jonathan ILIAS -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]