Changes in chapter09/introduction.xml [59d5489:c30b3cc]
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chapter09/introduction.xml
r59d5489 rc30b3cc 12 12 13 13 <para>Booting a Linux system involves several tasks. The process must 14 mount both virtual and real file systems, initialize devices, activate swap,15 check file systems for integrity, mount an y swap partitions or files, set14 mount both virtual and real file systems, initialize devices, 15 check file systems for integrity, mount and activate any swap partitions or files, set 16 16 the system clock, bring up networking, start any daemons required by the 17 system, and accomplish any other custom tasks needed by the user. This17 system, and accomplish any other custom tasks specified by the user. This 18 18 process must be organized to ensure the tasks are performed in the correct 19 order but, at the same time, be executed as fastas possible.</para>19 order and executed as quickly as possible.</para> 20 20 21 21 <sect2 id='sysv-desc'> … … 24 24 <para>System V is the classic boot process that has been used in Unix and 25 25 Unix-like systems such as Linux since about 1983. It consists of a small 26 program, <command>init</command>, that sets up basic pro grams such as26 program, <command>init</command>, that sets up basic processes such as 27 27 <command>login</command> (via getty) and runs a script. This script, 28 28 usually named <command>rc</command>, controls the execution of a set of … … 32 32 <para>The <command>init</command> program is controlled by the 33 33 <filename>/etc/inittab</filename> file and is organized into run levels that 34 can be run by the user. In LFS, they are used as follows:</para>34 can be chosen by the user. In LFS, they are used as follows:</para> 35 35 36 36 <literallayout>0 — halt … … 71 71 <listitem> 72 72 <para>Serial processing of boot tasks. This is related to the previous 73 point. A delay in any process such as a file system check, will73 point. A delay in any process, such as a file system check, will 74 74 delay the entire boot process.</para> 75 75 </listitem> … … 77 77 <listitem> 78 78 <para>Does not directly support advanced features like 79 control groups (cgroups) ,and per-user fair share scheduling.</para>79 control groups (cgroups) and per-user fair share scheduling.</para> 80 80 </listitem> 81 81
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