** Description changed: [Impact] /var/log's Permission is going back to 755 after upgrading systemd if there are rsyslog's configuration on /var/lib/tmpfiles.d/ Affected X, A, B, C + + This is because rsyslog's pkg has 00rsyslog.conf and copied it on /var/lib/tmpfiles.d/ when it is installing. + after upgrading systemd, systemd only refresh it's own tmpfiles so disappear conf for 00rsyslog.conf ( it doesn't remove file itself ) + so, systemd-tmpfiles --create /var/lib/tmpfiles.d/00rsyslog.conf back permission to 775 [Test Case] 1. deploy 16.04 vm 2. check ll /var (775) 3. apt install --reinstall systemd 4. check ll /var (755) [Regression Potential] - This changes debhelper's override process. so if the other pkgs are using same technic like rsyslog pkg do, It should be changed like rsyslog + This fix changes debhelper's override process by using absolute path to filename. so if the other pkgs using debhelper e.g systemd are there, It should be re-build with new debhelper after patching. also, pkg like rsyslog which is using systemd's tmpfile system need to be changed to use /etc/tmpfiles.d/[SAME_FILENAME_IN_VAR_LIB_TMPFILES.D_FOR_OVERRIDING] instead of 00rsyslog.conf. [Others] For this issue, need to fix below pkgs debhelper systemd ( rebuilding with new debhelper is needed ) rsyslog ( 00rsyslog.conf to var.conf and location should be /etc/tmpfiles.d, to support override supported by debhelper ) [Original description] Upgrading or reinstalling the systemd package when using rsyslogd results in bad permissions (0755 instead of 0775) being set on /var/log/. As a consequence of this, rsyslogd can no longer create new files within this directory, resulting in lost log messages. The default configuration of rsyslogd provided by Ubuntu runs the daemon as syslog:syslog and sets ownership of /var/log to syslog:adm with mode 0775. Systemd's default tmpfiles configuration sets /var/log to 0755 in /usr/lib/tmpfiles.d/var.conf, however this is overridden in /usr/lib/tmpfiles.d/00rsyslog.conf which is provided by package rsyslog. It looks as though an upgrade of the systemd package fails to take /usr/lib/tmpfiles.d/00rsyslog.conf into account, as demonstrated below. This results in /var/log receiving mode 0755 instead of the expected 0775: nick @ log2.be1.ams1:~ $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.3 LTS Release: 16.04 Codename: xenial nick @ log2.be1.ams1:~ $ apt policy systemd systemd: Installed: 229-4ubuntu21.1 Candidate: 229-4ubuntu21.1 Version table: *** 229-4ubuntu21.1 500 500 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages 100 /var/lib/dpkg/status 229-4ubuntu4 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages nick @ log2.be1.ams1:~ $ apt policy rsyslog rsyslog: Installed: 8.16.0-1ubuntu3 Candidate: 8.16.0-1ubuntu3 Version table: *** 8.16.0-1ubuntu3 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages 100 /var/lib/dpkg/status nick @ log2.be1.ams1:~ $ grep -F /var/log /usr/lib/tmpfiles.d/var.conf d /var/log 0755 - - - f /var/log/wtmp 0664 root utmp - f /var/log/btmp 0600 root utmp - nick @ log2.be1.ams1:~ $ cat /usr/lib/tmpfiles.d/00rsyslog.conf # Override systemd's default tmpfiles.d/var.conf to make /var/log writable by # the syslog group, so that rsyslog can run as user. # See tmpfiles.d(5) for details. # Type Path Mode UID GID Age Argument d /var/log 0775 root syslog - nick @ log2.be1.ams1:~ $ ls -ld /var/log drwxrwxr-x 8 root syslog 4096 Feb 7 13:45 /var/log nick @ log2.be1.ams1:~ $ sudo apt install --reinstall systemd Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 7 not upgraded. Need to get 3,634 kB of archives. After this operation, 0 B of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 systemd amd64 229-4ubuntu21.1 [3,634 kB] Fetched 3,634 kB in 0s (24.3 MB/s) (Reading database ... 86614 files and directories currently installed.) Preparing to unpack .../systemd_229-4ubuntu21.1_amd64.deb ... Unpacking systemd (229-4ubuntu21.1) over (229-4ubuntu21.1) ... Processing triggers for dbus (1.10.6-1ubuntu3.3) ... Processing triggers for ureadahead (0.100.0-19) ... Processing triggers for man-db (2.7.5-1) ... Setting up systemd (229-4ubuntu21.1) ... addgroup: The group `systemd-journal' already exists as a system group. Exiting. nick @ log2.be1.ams1:~ $ ls -ld /var/log drwxr-xr-x 8 root syslog 4096 Feb 7 13:45 /var/log
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1748147 Title: [SRU] debhelper support override from /etc/tmpfiles.d for systemd To manage notifications about this bug go to: https://bugs.launchpad.net/debhelper/+bug/1748147/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
