<refnamediv>
<refname>bootup</refname>
- <refpurpose>The System Bootup Process</refpurpose>
+ <refpurpose>System bootup process</refpurpose>
</refnamediv>
<refsect1>
<para>A number of different components are involved in the
system boot. Immediately after power-up, the system
BIOS will do minimal hardware initialization, and hand
- control over to a boot loader stored on a persistant
+ control over to a boot loader stored on a persistent
storage device. This boot loader will then invoke an
OS kernel from disk (or the network). In the Linux
case this kernel now (optionally) extracts and
v
basic.target
|
- _________________/| emergency.service
- / | |
- | | v
- v v <emphasis>emergency.target</emphasis>
- (various system (various system
- services services)
- required for |
- graphical UIs) v
- | <emphasis>multi-user.target</emphasis>
- | |
- | _________________/
- |/
+ __________________________________/| emergency.service
+ / | | |
+ | | | v
+ v v v <emphasis>emergency.target</emphasis>
+ display- (various system (various system
+ manager.service services services)
+ | required for |
+ | graphical UIs) v
+ | | <emphasis>multi-user.target</emphasis>
+ | | |
+ \_______________ | _________________/
+ \|/
v
<emphasis>graphical.target</emphasis></programlisting>