Public bug reported: When evaluating:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-advantage- tools/+bug/1700611 On 16.04 and greater, apt-cache fails to run if a single sources.list.d is not readable (by the current user). On Trusty, the behavior was a bit more friendly in that it would run and just not show results from the file that cannot be read. My expectation is that when run it would warn if any .list file could not be read, but show results for everything it can see. This terminal interaction shows the problem (trusty and precise behave the same here): ubuntu@precise-esm:~$ ll /etc/apt/sources.list.d/staging-ubuntu-esm-precise.list -rw------- 1 root root 200 Jun 7 18:35 /etc/apt/sources.list.d/staging-ubuntu-esm-precise.list ubuntu@precise-esm:~$ apt-cache policy landscape-client landscape-client: Installed: (none) Candidate: 14.12-0ubuntu0.12.04 Version table: 14.12-0ubuntu0.12.04 0 500 http://br.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 100 /var/lib/dpkg/status 12.04.3-0ubuntu1 0 500 http://br.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages ubuntu@precise-esm:~$ sudo apt-cache policy landscape-client landscape-client: Installed: (none) Candidate: 14.12-0ubuntu5.12.04 Version table: 14.12-0ubuntu5.12.04 0 500 https://extended.security.staging.ubuntu.com/ubuntu/ precise/main amd64 Packages 14.12-0ubuntu0.12.04 0 500 http://br.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 100 /var/lib/dpkg/status 12.04.3-0ubuntu1 0 500 http://br.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages ubuntu@xenial-test:~$ apt-cache search juju E: Opening /etc/apt/sources.list.d/juju-ubuntu-stable-xenial.list - ifstream::ifstream (13: Permission denied) E: The list of sources could not be read. ubuntu@xenial-test:~$ ** Affects: apt (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1701852 Title: (xenial+) apt-cache fails to run if a single sources.list.d entry is not readable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1701852/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
