Public bug reported: In a fresh raring chroot adding foreign-arch armhf then apt-get installing crossbuild-essential-armhf works fine. But if a repo arch-qualified for another arch (arm64) is added, and apt-get update run, installing crossbuild-essential-armhf now fails.
The reason for this is not clear. Here is a summary of what I've found so far. apt-get install crossbuild-essential-armhf crossbuild-essential-armhf : Depends: dpkg-cross but it is not going to be installed apt-get install dpkg-cross dpkg-cross : Depends: libdebian-dpkgcross-perl (= 2.6.9ubuntu2) but it is not going to be installed apt-get install libdebian-dpkgcross-perl works, but tries to remove: libidn11 libssl1.0.0 libudev0 multiarch-support wget (and replace multiarch-support:amd64 with multiarch-support:armhf, which breaks things) doing apt-get install crossbuild-essential-armhf libdebian-dpkgcross- perl multiarch-support:amd64 gets apt to do the right thing. So the question is why is apt prefering the solution of not installing crossbuild-essential-armhf over the correct solution of installing crossbuild-essential-armhf libdebian-dpkgcross-perl multiarch- support:amd64 I did apt-get -oDebug::pkgProblemResolver=1 install crossbuild-essential-armhf and got the attached apt-debug file I've also attached a script log of the session demonstrating that crossbuild-essential-armhf installs as expected unti l the extra arm64 repo is made available I think this can be reproduced by doing sbuild-createchroot for raring on amd64 box adding this repo to apt config: deb [arch=arm64] http://people.debian.org/~wookey/bootstrap/ubunturepo/ raring-bootstrap main universe deb-src http://people.debian.org/~wookey/bootstrap/ubunturepo/ raring-bootstrap main universe and doing the above tests, as documented in the script log attached the problem seems to revolve around apt starting by considering multiarch-support:arm64 ** Affects: apt (Ubuntu) Importance: Undecided Status: New ** Attachment added: "apt debug resolver output" https://bugs.launchpad.net/bugs/1185896/+attachment/3690714/+files/apt-debug -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1185896 Title: apt makes wrong resolver choice when foreign arch repo included To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1185896/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
