It's possible to use runit's service supervision without replacing the init scheme of the system. Simply run the stage 2 of runit as a service with your current init.
Normally this is done by either adding an entry for
/sbin/runsvdir-start to /etc/inittab, or by
adding /sbin/runsvdir-start as command to /etc/rc.local, or
by adding /sbin/runsvdir-start to the system's
StartupItems.
In any case, you first need to copy the stage 2 script to
/sbin/runsvdir-start, and create the services directory
/service/:
install -m0750 /package/admin/runit/etc/2 /sbin/runsvdir-start
mkdir -p /serviceHow to use with sysvinit and inittab
How to use with sysvinit and upstart
How to use with *BSD init
How to use with MacOSX init
If your system uses a sysvinit alike init scheme with a
/etc/inittab file, do:
cat >>/etc/inittab <<EOT
SV:123456:respawn:/sbin/runsvdir-start
EOTand tell init to re-read its configuration, e.g.:
init q
If your system uses a sysvinit alike init scheme that utilizes
upstart instead of inittab, and which has start and stop scripts located
in /etc/init/, do:
cat >/etc/init/runsvdir.conf <<\EOT
# for runit - manage /usr/sbin/runsvdir-start
start on runlevel 2
start on runlevel 3
start on runlevel 4
start on runlevel 5
stop on shutdown
respawn
exec /usr/sbin/runsvdir-start
EOTand tell init to start the new service, e.g.:
start runsvdir
If your system uses a BSD alike init scheme with a
/etc/rc.local script, do:
cat >>/etc/rc.local <<EOT
csh -cf '/sbin/runsvdir-start &'
EOTand reboot your system.
On MacOSX 10.2 create an entry for runit in
/System/Library/StartupItems/:
cd /System/Library/StartupItems
mkdir -p runit
cp -p /package/admin/runit/etc/macosx/StartupItems/* runit/and reboot your system.
On MacOSX 10.4 create an entry for runit in
/Library/LaunchDaemons/, and tell launchd to start
the new service:
cp /package/admin/runit/etc/macosx/org.smarden.runit.plist \
/Library/LaunchDaemons/
launchctl load /Library/LaunchDaemons/org.smarden.runit.plist