Package: piuparts Version: 0.72 Followup-For: Bug #704037 Dear Maintainer,
I ran into this issue when working on a java package, it is indeed related to binfmt-support as the original submitter said. I am not attaching the log as it looks a lot like the one already posted. I found some more info in an Ubuntu bug report: https://bugs.launchpad.net/ubuntu/+source/binfmt-support/+bug/534211 And it looks like debian-live has a workaround for this issue as well: https://lists.debian.org/debian-live/2007/01/msg00039.html I can reproduce the problem with the "signtos" package, which has similar dependencies to the one I am working on which is not in debian yet (in particular they both depend on jarwrapper). Here's how to reproduce it with a pbuilder chroot: $ DIST=sid ARCH=amd64 BUILDER=pbuilder git pbuilder create $ wget http://deb.debian.org/debian/pool/main/a/android-platform-build/signtos_6.0.1+r55-3_all.deb $ DIST=sid ARCH=amd64 eval sudo piuparts --log-level dump --list-installed-files --pedantic-purge-test --warn-on-leftovers-after-purge --warn-on-others -b '/var/cache/pbuilder/base-$DIST-$ARCH.tgz' signtos_6.0.1+r55-3_all.deb The change below works around it, after applying it piuparts unmounts the chroot successfully: ------------------------------------------------------------------------------ --- /usr/sbin/piuparts 2016-08-03 11:24:56.000000000 +0200 +++ piuparts 2016-10-29 15:23:16.137417215 +0200 @@ -1576,6 +1576,13 @@ class Chroot: def unmount_all(self): """Unmount everything we mount()ed into the chroot.""" + + # Hack to umount /proc/sys/fs/binfmt_misc which is mounted by + # update-binfmts, see + # https://bugs.launchpad.net/ubuntu/+source/binfmt-support/+bug/534211 + # https://lists.debian.org/debian-live/2007/01/msg00039.html + run(["umount", self.relative("/proc/sys/fs/binfmt_misc")], ignore_errors=True) + for mountpoint in reversed(self.mounts): run(["umount", mountpoint], ignore_errors=True) ------------------------------------------------------------------------------ I don't know if this can or should be fixed in binfmt-support, but if you want to add the workaround to piupoarts I can send a proper patch. Thanks, Antonio -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (900, 'unstable'), (500, 'unstable-debug') Architecture: amd64 (x86_64) Kernel: Linux 4.7.0-1-amd64 (SMP w/2 CPU cores) Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Init: systemd (via /run/systemd/system) Versions of packages piuparts depends on: ii debootstrap 1.0.85 ii debsums 2.1.2 ii dpkg 1.18.10 ii lsb-release 9.20161016 ii lsof 4.89+dfsg-0.1 ii piuparts-common 0.72 ii python-debian 0.1.29 pn python:any <none> Versions of packages piuparts recommends: ii adequate 0.15.1 Versions of packages piuparts suggests: pn schroot <none> -- no debconf information -- Antonio Ospite https://ao2.it https://twitter.com/ao2it A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing?
