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boot.7: Mention `systemd(1)' and its related `bootup(7)' 

It's important that the reader receive contemporary information.

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Witten 2015-03-11 21:00:00 +00:00 committed by Michael Kerrisk
parent a879ea438c
commit fbf0b164c2
1 changed files with 14 additions and 6 deletions
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@ -114,6 +114,15 @@ program
to which are passed the parameters that haven't already been to which are passed the parameters that haven't already been
handled by the kernel. handled by the kernel.
.SS Root user-space process .SS Root user-space process
.TP
Note:
The following description applies to an OS based on UNIX System V Release 4.
Namely, a number of widely used systems have adopted a related but
fundamentally alternative approach known as
.BR systemd (1),
for which the bootup process is detailed in its associated
.BR bootup (7).
.LP
When When
.I /sbin/init .I /sbin/init
starts, it reads starts, it reads
@ -141,11 +150,8 @@ that actually start/stop the individual services.
.SS Boot scripts .SS Boot scripts
.TP .TP
Note: Note:
The following description applies to an OS based on UNIX System V Release 4, The following description applies to an OS based on UNIX System V Release 4.
which currently covers most commercial UNIX systems (Solaris, HP-UX, Irix, Namely, a number of widely used systems (Slackware Linux, FreeBSD, OpenBSD)
Tru64) as well as the major Linux distributions (Red Hat, Debian, Mandriva,
SUSE, Ubuntu).
Some systems (Slackware Linux, FreeBSD, OpenBSD)
have a somewhat different scheme for boot scripts. have a somewhat different scheme for boot scripts.
.LP .LP
For each managed service (mail, nfs server, cron, etc.), there is For each managed service (mail, nfs server, cron, etc.), there is
@ -199,7 +205,7 @@ To allow a system administrator to change these
inputs without editing an entire boot script, inputs without editing an entire boot script,
some separate configuration file is used, and is located in a specific some separate configuration file is used, and is located in a specific
directory where an associated boot script may find it directory where an associated boot script may find it
(\fI/etc/sysconfig\fR on Red Hat systems). (\fI/etc/sysconfig\fR on older Red Hat systems).
In older UNIX systems, such a file contained the actual command line In older UNIX systems, such a file contained the actual command line
options for a daemon, but in modern Linux systems (and also options for a daemon, but in modern Linux systems (and also
@ -213,6 +219,8 @@ the variable values.
.IR /etc/rc[S0\-6].d/ , .IR /etc/rc[S0\-6].d/ ,
.I /etc/sysconfig/ .I /etc/sysconfig/
.SH SEE ALSO .SH SEE ALSO
.BR bootup (7)
.BR systemd (1)
.BR inittab (5), .BR inittab (5),
.BR bootparam (7), .BR bootparam (7),
.BR init (1), .BR init (1),