Thank you all for your help. $ apt-cache policy qemu gcc-powerpc64-linux-gnu qemu: Installed: (none) Candidate: 1:6.0+dfsg-2expubuntu1.1 Version table: 1:6.0+dfsg-2expubuntu1.1 500 500 http://de.ports.ubuntu.com/ubuntu-ports impish-updates/universe ppc64el Packages 1:6.0+dfsg-2expubuntu1 500 500 http://de.ports.ubuntu.com/ubuntu-ports impish/universe ppc64el Packages N: Unable to locate package gcc-powerpc64-linux-gnu
But: $ apt-cache policy gcc-powerpc-linux-gnu gcc-powerpc-linux-gnu: Installed: (none) Candidate: 4:11.2.0-1ubuntu1 Version table: 4:11.2.0-1ubuntu1 500 500 http://de.ports.ubuntu.com/ubuntu-ports impish/universe ppc64el Packages Thank you for telling me about `--arch-only`. That seems to be it. $ sudo eatmydata apt --arch-only build-dep qemu Reading package lists... Done Reading package lists... Done Building dependency tree... Done Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. As I had manually installed the dependencies before, nothing happened as expected. ** Changed in: qemu (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1960592 Title: `apt build-dep qemu-system-ppc` fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1960592/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs