Public bug reported: When Dir has a space, and it is set via APT_CONFIG file, keys are found and validated correctly. When Dir is set without a space via cmdline, keys are found and validated correctly. When Dir is set with a space via cmdline, keys are not found and repositories are not verified.
Please see attached reproducer, which works on xenial system (gpg1) but not on zesty system (gpg2) $ bash reproducer.sh ++ mktemp -d + tmpdir=/tmp/tmp.sFipy6h5yL + pushd /tmp/tmp.sFipy6h5yL /tmp/tmp.sFipy6h5yL ~ + mkdir 'Sub Dir' + pushd 'Sub Dir' /tmp/tmp.sFipy6h5yL/Sub Dir /tmp/tmp.sFipy6h5yL ~ + mkdir -p etc/apt/apt.conf.d + mkdir -p etc/apt/trusted.gpg.d + mkdir -p etc/apt/preferences.d + mkdir -p var/lib/apt/lists/partial + mkdir -p var/lib/dpkg + touch var/lib/dpkg/status + cp /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-archive.gpg etc/apt/trusted.gpg.d/ + echo 'deb http://archive.ubuntu.com/ubuntu/ trusty main' + echo 'Dir "/tmp/tmp.sFipy6h5yL/Sub Dir";' + export APT_CONFIG=/tmp/tmp.sFipy6h5yL/apt.conf + APT_CONFIG=/tmp/tmp.sFipy6h5yL/apt.conf + cat /tmp/tmp.sFipy6h5yL/apt.conf Dir "/tmp/tmp.sFipy6h5yL/Sub Dir"; + : + : == list available keys == + apt-key list /tmp/tmp.sFipy6h5yL/Sub Dir/etc/apt/trusted.gpg.d/ubuntu-keyring-2012-archive.gpg --------------------------------------------------------------------------------- pub rsa4096 2012-05-11 [SC] 790B C727 7767 219C 42C8 6F93 3B4F E6AC C0B2 1F32 uid [ unknown] Ubuntu Archive Automatic Signing Key (2012) <ftpmas...@ubuntu.com> + : + : == update with environ APT_CONFIG setting the Dir variable == + apt update Ign:1 http://archive.ubuntu.com/ubuntu trusty InRelease Get:2 http://archive.ubuntu.com/ubuntu trusty Release [58.5 kB] Get:3 http://archive.ubuntu.com/ubuntu trusty Release.gpg [933 B] Get:4 http://archive.ubuntu.com/ubuntu trusty/main amd64 Packages [1,350 kB] Fetched 1,410 kB in 0s (1,959 kB/s) Reading package lists... Done Building dependency tree... Done All packages are up to date. + unset APT_CONFIG + : + : == update with cmdline Dir option setting Dir to relative pwd == + apt -o Dir=./ update Ign:1 http://archive.ubuntu.com/ubuntu trusty InRelease Hit:2 http://archive.ubuntu.com/ubuntu trusty Release Reading package lists... Done Building dependency tree... Done All packages are up to date. + : + : == update with cmdline Dir option setting Dir to absolute pwd with space == + apt -o 'Dir=/tmp/tmp.sFipy6h5yL/Sub Dir' update Ign:1 http://archive.ubuntu.com/ubuntu trusty InRelease Hit:2 http://archive.ubuntu.com/ubuntu trusty Release Err:3 http://archive.ubuntu.com/ubuntu trusty Release.gpg The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 Reading package lists... Done Building dependency tree... Done All packages are up to date. W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.ubuntu.com/ubuntu trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/Release.gpg The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 W: Some index files failed to download. They have been ignored, or old ones used instead. ** Affects: apt (Ubuntu) Importance: High Status: Confirmed ** Attachment added: "reproducer.sh" https://bugs.launchpad.net/bugs/1672710/+attachment/4837553/+files/reproducer.sh ** Changed in: apt (Ubuntu) Status: New => Confirmed ** Changed in: apt (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1672710 Title: apt fails to verify keys when Dir has space, and set via cmdline To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1672710/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs