Package: systemd Version: 228-6 Severity: normal libpam-systemd, systemd, and libsystemd0 have = dependencies on each other. This invariant can be temporarily violated in the middle of a large upgrade, and AIUI that is normal and to be expected. However, systemd has several dpkg triggers that can fire while the = dependencies are violated, and when this happens, the entire upgrade bombs out. Worse, one of those triggers seems to be armed and immediately fired *by upgrading libsystemd0*, before dpkg has had a chance to upgrade systemd proper, so this is guaranteed to happen any time the systemd packages are upgraded.
It's possible to recover by manually installing the new versions of libpam-systemd, systemd, and libsystemd0, but there's got to be some way to make apt do the Right Thing, right? (I don't really understand triggers. I thought they were supposed to postpone work until the *end* of a large upgrade, but they seem to go off all the time in the middle.) Example upgrade transcript: # aptitude safe-upgrade [...] Extracting templates from packages: 100% Preconfiguring packages ... [...snip...] (Reading database ... 289818 files and directories currently installed.) Preparing to unpack .../linux-image-4.3.0-1-amd64_4.3.5-1_amd64.deb ... Unpacking linux-image-4.3.0-1-amd64 (4.3.5-1) over (4.3.3-7) ... Preparing to unpack .../archives/udev_228-6_amd64.deb ... Unpacking udev (228-6) over (228-5) ... Preparing to unpack .../libpam-systemd_228-6_amd64.deb ... Unpacking libpam-systemd:amd64 (228-6) over (228-5) ... Preparing to unpack .../libsystemd0_228-6_amd64.deb ... Unpacking libsystemd0:amd64 (228-6) over (228-5) ... Setting up libsystemd0:amd64 (228-6) ... Processing triggers for libc-bin (2.21-7) ... dpkg: dependency problems prevent processing triggers for systemd: systemd depends on libsystemd0 (= 228-5); however: Version of libsystemd0:amd64 on system is 228-6. dpkg: error processing package systemd (--triggers-only): dependency problems - leaving triggers unprocessed Processing triggers for man-db (2.7.5-1) ... Errors were encountered while processing: systemd E: Sub-process /usr/bin/dpkg returned an error code (1) Failed to perform requested operation on package. Trying to recover: Setting up libquadmath0:amd64 (5.3.1-8) ... Setting up linux-image-4.3.0-1-amd64 (4.3.5-1) ... [...snip...] Setting up libobjc4:amd64 (5.3.1-8) ... dpkg: dependency problems prevent configuration of libpam-systemd:amd64: libpam-systemd:amd64 depends on systemd (= 228-6); however: Version of systemd on system is 228-5. dpkg: error processing package libpam-systemd:amd64 (--configure): dependency problems - leaving unconfigured Setting up libx32gcc1 (1:5.3.1-8) ... [...snip...] Setting up udev (228-6) ... addgroup: The group `input' already exists as a system group. Exiting. update-initramfs: deferring update (trigger activated) dpkg: dependency problems prevent processing triggers for systemd: systemd depends on libsystemd0 (= 228-5); however: Version of libsystemd0:amd64 on system is 228-6. dpkg: error processing package systemd (--configure): dependency problems - leaving triggers unprocessed Setting up libx32asan2 (5.3.1-8) ... [..snip...] Processing triggers for libc-bin (2.21-7) ... Processing triggers for initramfs-tools (0.122) ... update-initramfs: Generating /boot/initrd.img-4.3.0-1-amd64 Errors were encountered while processing: libpam-systemd:amd64 systemd Press Return to continue. # aptitude safe-upgrade Performing actions... Reading changelogs... Done Extracting templates from packages: 100% Preconfiguring packages ... (Reading database ... 289818 files and directories currently installed.) Preparing to unpack .../acl_2.2.52-3_amd64.deb ... Unpacking acl (2.2.52-3) over (2.2.52-2) ... Preparing to unpack .../libacl1_2.2.52-3_amd64.deb ... Unpacking libacl1:amd64 (2.2.52-3) over (2.2.52-2) ... Setting up libacl1:amd64 (2.2.52-3) ... Processing triggers for libc-bin (2.21-7) ... dpkg: dependency problems prevent processing triggers for systemd: systemd depends on libsystemd0 (= 228-5); however: Version of libsystemd0:amd64 on system is 228-6. dpkg: error processing package systemd (--triggers-only): dependency problems - leaving triggers unprocessed Processing triggers for man-db (2.7.5-1) ... Errors were encountered while processing: systemd E: Sub-process /usr/bin/dpkg returned an error code (1) Failed to perform requested operation on package. Trying to recover: dpkg: dependency problems prevent configuration of libpam-systemd:amd64: libpam-systemd:amd64 depends on systemd (= 228-6); however: Version of systemd on system is 228-5. dpkg: error processing package libpam-systemd:amd64 (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent processing triggers for systemd: systemd depends on libsystemd0 (= 228-5); however: Version of libsystemd0:amd64 on system is 228-6. dpkg: error processing package systemd (--configure): dependency problems - leaving triggers unprocessed Setting up acl (2.2.52-3) ... Errors were encountered while processing: libpam-systemd:amd64 systemd Press Return to continue. # dpkg -i /var/cache/apt/archives/*systemd*_228-6_amd64.deb (Reading database ... 289815 files and directories currently installed.) Preparing to unpack .../libpam-systemd_228-6_amd64.deb ... Unpacking libpam-systemd:amd64 (228-6) over (228-6) ... Preparing to unpack .../libsystemd0_228-6_amd64.deb ... Unpacking libsystemd0:amd64 (228-6) over (228-6) ... Preparing to unpack .../systemd_228-6_amd64.deb ... Unpacking systemd (228-6) over (228-5) ... Preparing to unpack .../systemd-sysv_228-6_amd64.deb ... Unpacking systemd-sysv (228-6) over (228-5) ... Setting up libsystemd0:amd64 (228-6) ... Setting up systemd (228-6) ... addgroup: The group `systemd-journal' already exists as a system group. Exiting. Setting up systemd-sysv (228-6) ... Setting up libpam-systemd:amd64 (228-6) ... Processing triggers for man-db (2.7.5-1) ... Processing triggers for dbus (1.10.6-1) ... Processing triggers for libc-bin (2.21-7) ... # aptitude safe-upgrade [ ... proceeds normally ... ] -- Package-specific info: -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (501, 'unstable'), (500, 'testing'), (101, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.3.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages systemd depends on: ii adduser 3.113+nmu3 ii libacl1 2.2.52-3 ii libapparmor1 2.10-3 ii libaudit1 1:2.4.5-1 ii libblkid1 2.27.1-3 ii libc6 2.21-7 ii libcap2 1:2.24-12 ii libcap2-bin 1:2.24-12 ii libcryptsetup4 2:1.7.0-2 ii libgcrypt20 1.6.4-5 ii libkmod2 22-1 ii liblzma5 5.1.1alpha+20120614-2.1 ii libmount1 2.27.1-3 ii libpam0g 1.1.8-3.2 ii libseccomp2 2.2.3-2 ii libselinux1 2.4-3 ii libsystemd0 228-6 ii mount 2.27.1-3 ii util-linux 2.27.1-3 Versions of packages systemd recommends: ii dbus 1.10.6-1 ii libpam-systemd 228-6 Versions of packages systemd suggests: pn systemd-container <none> pn systemd-ui <none> Versions of packages systemd is related to: ii udev 228-6 -- no debconf information _______________________________________________ Pkg-systemd-maintainers mailing list Pkg-systemd-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-systemd-maintainers
