I am able to reproduce this bug with supermin 5.1.5 by doing: $ sudo dpkg --add-architecture i386 $ sudo apt-get update $ sudo apt-get install attr:i386 $ sudo apt-get install xfsprogs
(Note that xfsprogs requires attr.) After that: $ dpkg-query --show --showformat '${Package} ${Version} ${Architecture}\n' | grep attr attr 1:2.4.47-1 i386 libattr1 1:2.4.47-1 amd64 libattr1 1:2.4.47-1 i386 libattr1-dev 1:2.4.47-1 amd64 Now to reproduce the bug, do: $ supermin --version supermin 5.1.5 $ supermin --prepare attr xfsprogs -o /tmp/supermin.d supermin: internal error: assertion failed at dpkg.ml, line 86, char 19 However, using supermin 5.1.6 does not produce the assertion failure, and I am able to prepare and build an appliance: $ git describe v5.1.6 $ ./src/supermin --prepare attr xfsprogs -o /tmp/supermin.d $ ./src/supermin --build /tmp/supermin.d -o /tmp/appliance.d -f chroot So I think you should try upgrading to 5.1.6 to fix this bug. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org