<listitem><para>In the child, call
<function>fork()</function> again, to
- ensure the daemon can never re-aquire
+ ensure the daemon can never re-acquire
a terminal again.</para></listitem>
<listitem><para>Call <function>exit()</function> in the
to the CPU and IO schedulers. If a process
executed by the init system shall not
negatively impact the amount of CPU or IO
- bandwith available to other processes, it
+ bandwidth available to other processes, it
should be configured with
<varname>CPUSchedulingPolicy=idle</varname>
and/or
--variable=systemdsystemunitdir</command> (for
system services), resp. <command>pkg-config
systemd
- --variable=systemdsessionunitdir</command>
- (for session services). This will make the
+ --variable=systemduserunitdir</command>
+ (for user services). This will make the
services available in the system on explicit
request but not activate them automatically
during boot. Optionally, during package
machines, and optionally allows their
installation even on machines lacking
systemd. (Modification of this snippet for the
- session unit directory is left as excercise to the
+ user unit directory is left as excercise to the
reader.)</para>
<para>Additionally, to ensure that
<programlisting>%post
if [ $1 -eq 1 ]; then
- # On install, enable (but don't start) the units by default
+ # On install (not upgrade), enable (but don't start) the
+ # units by default
/bin/systemctl enable foobar.service foobar.socket >/dev/null 2>&1 || :
- # Alternatively, just call /bin/systemctl daemon-reload here,
- # if the daemon should not be enabled by default on package
+ # Alternatively, just call
+ # /bin/systemctl daemon-reload >/dev/null 2>&1 || :
+ # here, if the daemon should not be enabled by default on
# installation
fi
%preun
if [ $1 -eq 0 ]; then
- # On uninstall, disable and stop the units
- /bin/systemctl disable foobar.service foobar.socket >/dev/null 2>&1 || :
+ # On uninstall (not upgrade), disable and stop the units
+ /bin/systemctl --no-reload disable foobar.service foobar.socket >/dev/null 2>&1 || :
/bin/systemctl stop foobar.service foobar.socket >/dev/null 2>&1 || :
fi
%postun
-# On upgrade and uninstall, reload init system configuration, to make systemd honour changed unit files
+# Reload init system configuration, to make systemd honour changed
+# or deleted unit files
/bin/systemctl daemon-reload >/dev/null 2>&1 || :
if [ $1 -ge 1 ] ; then
- # Optionally, on upgrade, restart the daemon
+ # On upgrade (not uninstall), optionally, restart the daemon
/bin/systemctl try-restart foobar.service >/dev/null 2>&1 || :
fi</programlisting>
a fragment like the following:</para>
<programlisting>%triggerun -- foobar < 0.47.11-1
-if /sbin/chkconfig foobar ; then
- /bin/systemctl enable foobar.service foobar.socket >/dev/null 2>&1 || :
+if /sbin/chkconfig --level 5 foobar ; then
+ /bin/systemctl --no-reload enable foobar.service foobar.socket >/dev/null 2>&1 || :
fi</programlisting>
<para>Where 0.47.11-1 is the first package