I found a similar problem and I was going to report it here also; it wasn't working with "release a=unstable" and pins for debian repositories...
Finally I found the debian mirror I was using was missing the Release files in /var/lib/apt/lists and therefore the release wasn't being applied; does not seem to be your case, but I'd double check there, and perhaps would try as well changing mirrors, just in case... -- pinning negative preferences not preventing installation https://bugs.launchpad.net/bugs/185692 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
