Package: proftpd-core
Version: 1.3.7b+dfsg-1
Severity: normal
Tags: patch
X-Debbugs-Cc: plore...@disroot.org

Dear Maintainer,

during the last upgrade of proftpd i got

[...]
Setting up proftpd-core (1.3.7b+dfsg-1) ...
usermod: no changes
Can't exec "systemctl": No such file or directory at 
/usr/bin/deb-systemd-invoke line 110.
sh: 1: systemctl: not found
Can't exec "systemctl": No such file or directory at 
/usr/bin/deb-systemd-invoke line 94.
proftpd.service is a disabled or a static unit not running, not starting it.
insserv: warning: current start runlevel(s) (empty) of script `proftpd' 
overrides LSB defaults (2 3 4 5).
insserv: warning: current stop runlevel(s) (0 1 2 3 4 5 6) of script `proftpd' 
overrides LSB defaults (0 1 6).
insserv: Script `lvm2' has overlapping Default-Start and Default-Stop runlevels 
(S) and (S). This should be fixed.
Stopping ftp server: proftpd.
Starting ftp server: proftpd.
[...]

Not a tragic issue since it looks that postinst script proceeds anyway with the 
rest
of the configuration, but if you look at snippets from debhelper 
deb-systemd-invoke is always
called only if systemd is PID1. The patch at the bottom should fix the issue.

Regards,
Lorenzo

$ diff -u ./proftpd-core.postinst proftpd-core.postinst-new 
--- ./proftpd-core.postinst     2021-07-15 23:33:15.000000000 +0200
+++ proftpd-core.postinst-new   2021-07-19 10:02:48.080741451 +0200
@@ -207,8 +207,10 @@
        # enable and start proftpd daemon via systemctl
        if egrep -qi "^[[:space:]]*ServerType.*standalone" 
/etc/proftpd/proftpd.conf
        then
-               deb-systemd-invoke enable proftpd.service
-               deb-systemd-invoke restart proftpd.service
+               if [ -d /run/systemd/system ]; then
+                       deb-systemd-invoke enable proftpd.service
+                       deb-systemd-invoke restart proftpd.service
+               fi
        fi
 fi
 


-- System Information:
Debian Release: 11.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.7.0-1-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND, TAINT_OOT_MODULE, 
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_US:en
Shell: /bin/sh linked to /bin/dash
Init: runit (via /run/runit.stopit)

Versions of packages proftpd-core depends on:
ii  adduser              3.118
ii  debianutils          4.11.2
ii  init-system-helpers  1.60
ii  libacl1              2.2.53-10
ii  libc6                2.31-13
ii  libcap2              1:2.44-1
ii  libcrypt1            1:4.4.18-4
ii  libhiredis0.14       0.14.1-1
ii  libmemcached11       1.0.18-4.2
ii  libmemcachedutil2    1.0.18-4.2
ii  libncursesw6         6.2+20201114-2
ii  libpam-runtime       1.4.0-9
ii  libpam0g             1.4.0-9
ii  libpcre3             2:8.39-13
ii  libssl1.1            1.1.1k-1
ii  libtinfo6            6.2+20201114-2
ii  lsb-base             11.1.0
ii  netbase              6.3
ii  sed                  4.7-1
ii  ucf                  3.0043
ii  zlib1g               1:1.2.11.dfsg-2

Versions of packages proftpd-core recommends:
ii  proftpd-doc  1.3.7b+dfsg-1

Versions of packages proftpd-core suggests:
pn  openbsd-inetd | inet-superserver  <none>
ii  openssl                           1.1.1k-1
ii  proftpd-mod-crypto                1.3.7b+dfsg-1
pn  proftpd-mod-geoip                 <none>
pn  proftpd-mod-ldap                  <none>
pn  proftpd-mod-mysql                 <none>
pn  proftpd-mod-odbc                  <none>
pn  proftpd-mod-pgsql                 <none>
pn  proftpd-mod-snmp                  <none>
pn  proftpd-mod-sqlite                <none>
ii  proftpd-mod-wrap                  1.3.7b+dfsg-1

-- no debconf information

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