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runit-init(8) [centos man page]

runit-init(8)                                                 System Manager's Manual                                                runit-init(8)

NAME
init - a UNIX process no 1 SYNOPSIS
init [ 0 | 6 ] DESCRIPTION
runit-init is the first process the kernel starts. If runit-init is started as process no 1, it runs and replaces itself with runit(8). If runit-init is started while the system is up, it must be either called as init 0 or init 6: init 0 tells the Unix process no 1 to shutdown and halt the system. To signal runit(8) the system halt request, runit-init removes all permissions of the file /etc/runit/reboot (chmod 0), and sets the execute by owner permission of the file /etc/runit/stopit (chmod 100). Then a CONT signal is sent to runit(8). init 6 tells the Unix process no 1 to shutdown and reboot the system. To signal runit(8) the system reboot request, runit-init sets the execute by owner permission of the files /etc/runit/reboot and /etc/runit/stopit (chmod 100). Then a CONT signal is sent to runit(8). EXIT CODES
runit-init returns 111 on error, 0 in all other cases. SEE ALSO
runit(8), runsvdir(8), runsvchdir(8), sv(8), runsv(8), chpst(8), utmpset(8), svlogd(8) http://smarden.org/runit/ AUTHOR
Gerrit Pape <pape@smarden.org> runit-init(8)

Check Out this Related Man Page

runsvdir(8)						      System Manager's Manual						       runsvdir(8)

NAME
runsvdir - starts and monitors a collection of runsv(8) processes SYNOPSIS
runsvdir [-P] dir [ log ] DESCRIPTION
dir must be a directory. log is a space holder for a readproctitle log, and must be at least seven characters long or absent. runsvdir starts a runsv(8) process for each subdirectory, or symlink to a directory, in the services directory dir, up to a limit of 1000 subdirectories, and restarts a runsv(8) process if it terminates. runsvdir skips subdirectory names starting with dots. runsv(8) must be in runsvdir's PATH. At least every five seconds runsvdir checks whether the time of last modification, the inode, or the device, of the services directory dir has changed. If so, it re-scans the service directory, and if it sees a new subdirectory, or new symlink to a directory, in dir, it starts a new runsv(8) process; if runsvdir sees a subdirectory being removed that was previously there, it sends the corresponding runsv(8) process a TERM signal, stops monitoring this process, and so does not restart the runsv(8) process if it exits. If the log argument is given to runsvdir, all output to standard error is redirected to this log, which is similar to the daemontools' readproctitle log. To see the most recent error messages, use a process-listing tool such as ps(1). runsvdir writes a dot to the read- proctitle log every 15 minutes so that old error messages expire. OPTIONS
-P use setsid(2) to run each runsv(8) process in a new session and separate process group. SIGNALS
If runsvdir receives a TERM signal, it exits with 0 immediately. If runsvdir receives a HUP signal, it sends a TERM signal to each runsv(8) process it is monitoring and then exits with 111. SEE ALSO
sv(8), runsv(8), runsvchdir(8), runit(8), runit-init(8), chpst(8), svlogd(8), utmpset(8), setsid(2) http://smarden.org/runit/ AUTHOR
Gerrit Pape <pape@smarden.org> runsvdir(8)
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