diff options
Diffstat (limited to 'man7/boot.7')
| -rw-r--r-- | man7/boot.7 | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/man7/boot.7 b/man7/boot.7 index 9f782fff9..f69e8c1c1 100644 --- a/man7/boot.7 +++ b/man7/boot.7 @@ -10,7 +10,7 @@ .\" .\" Modified 2004-11-03 patch from Martin Schulze <joey@infodrom.org> .\" -.TH boot 7 2023-02-05 "Linux man-pages 6.03" +.TH boot 7 2023-07-08 "Linux man-pages 6.05.01" .SH NAME boot \- System bootup process based on UNIX System V Release 4 .SH DESCRIPTION @@ -82,10 +82,10 @@ a primary OS loader and a secondary OS loader; this secondary OS loader may be located within a larger portion of persistent storage, such as a disk partition. .PP -In Linux, the OS loader is often either -.BR lilo (8) -or -.BR grub (8). +In Linux, the OS loader is often +.BR grub (8) +(an alternative is +.BR lilo (8)). .SS Kernel When the kernel is loaded, it initializes various components of the computer and operating system; each portion of software @@ -128,16 +128,19 @@ starts, it reads for further instructions. This file defines what should be run when the .I /sbin/init -program is instructed to enter a particular \fIrun-level\fR, giving +program is instructed to enter a particular run level, giving the administrator an easy way to establish an environment -for some usage; each run-level is associated with a set of services -(for example, run-level \fBS\fR is \fIsingle-user\fR mode, -and run-level \fB2\fR entails running most network services). -.PP -The administrator may change the current -run-level via +for some usage; each run level is associated with a set of services +(for example, run level +.B S +is single-user mode, +and run level +.B 2 +entails running most network services). +.PP +The administrator may change the current run level via .BR init (1), -and query the current run-level via +and query the current run level via .BR runlevel (8). .PP However, since it is not convenient to manage individual services @@ -165,7 +168,7 @@ start, "status" to display the service status, etc.). Running the script without parameters displays the possible arguments. .SS Sequencing directories -To make specific scripts start/stop at specific run-levels and in a +To make specific scripts start/stop at specific run levels and in a specific order, there are \fIsequencing directories\fR, normally of the form \fI/etc/rc[0\-6S].d\fR. In each of these directories, @@ -181,17 +184,19 @@ the argument "start" (thereby starting the service). Each link whose name begins with \[aq]K\[aq] is called with the argument "stop" (thereby stopping the service). .PP -To define the starting or stopping order within the same run-level, +To define the starting or stopping order within the same run level, the name of a link contains an \fBorder-number\fR. Also, for clarity, the name of a link usually ends with the name of the service to which it refers. For example, -the link \fI/etc/rc2.d/S80sendmail\fR starts the sendmail service on -runlevel 2. +the link \fI/etc/rc2.d/S80sendmail\fR starts the +.BR sendmail (8) +service on +run level 2. This happens after \fI/etc/rc2.d/S12syslog\fR is run but before \fI/etc/rc2.d/S90xfs\fR is run. .PP -To manage these links is to manage the boot order and run-levels; +To manage these links is to manage the boot order and run levels; under many systems, there are tools to help with this task (e.g., .BR chkconfig (8)). |