?????????????У????????????????????????linux????????????Щ???????ó????????????????????????????????????????????????????????????????????linux???????????????????????????????????????ж????????????á?????????????????? linux????????????????redhat??????????????????linux????????磬?linux???????????????????????????????linux??????????÷??????????????????????н?????á?
????Linux???????????????
????1??Redhat????????????д???
????·  ???????
????·  ???init????
????·  /etc/rc.d/rc.sysinit # ??init??е????????
????·  /etc/rc.d/rc $RUNLEVEL # $RUNLEVEL???????????
????·  /etc/rc.d/rc.local
????·  /sbin/mingetty # ?????????
???????У?/etc/rc.d/rc.sysinit???????????????????????????????????????
????·  ????keymap?????????
????·  ???swapping
????·  ??????????
????·  ????NIS????
????·  ??饗fsck????mount?????
????·  ??quota
????·  ??????????
????·  ??????????????
????2??Linux /etc/rc.d/???????
????rc.d?????????￡?
????·  init.d/ :???????????????????????????????
????·  rcx.d/: ??????????????г??????????????????????????init.d/???Щ????????????????????
????·  ?????????????rc.sysinit?? rc??rc.local??
???????У?/etc /rc.d/rc?????????????????????(???м???????inittab????п???????)???????????μ???????????Kxx????? ??????stop??????????????????Sxx??????????start??????????á?????????xx ??С????????С????磬????????????????3??/etc/rc.d/rc????????????? /etc/rc.d/rc3.d/?μ?????
??????????????Redhat?е???????2??3??5????/etc/rc.d/rc.local????????????е???????????????????????????????????Щ????????????????????????????е????
?????????????????????
???????linux???????????????????????????????????????????????в????ε?????????????????????????????????????????????????????rc.local??? /etc/init.d???á?
???????????????? /etc/rc.local????????????????????????????
??????????????????????????????????????rc.local?????????????к???????????????????????????????????????????y????????????????????
??????????????????????????????κ?????????????е??????????????д?? /etc/rc.local??????ù???????????????????????????????????????????????????????linux???????Σ???????д???rc.local?е??????windows?????“???”????е????????????鷳Щ??????????
????PS????????rc.local????????????????????????????exit??????????????????С?
??????????????? /etc/init.d???????????????????
????????????????Щ??????????linux??rpm???????趨???Щ????????????????????????? rpm???????????к???????????????Щ??????????????????????????Щ????????????????????????????? sendmail ???????????? sendmail ???? rpm ????????????′? /etc/rc.d/init.d/sendmail restart ?????????? sendmail ???
????????????/etc/rc.d/init.d??????μ?????????windows?е????????????????????С????????е?????(init???????????м???)?????????init.d???????????????????????У?????????????????????????????е????
?????????????????????Щ????????Щ??????????????????м??????????????????????????run level???/etc/rc.d/rc??????????С???RH9??FC7??????????????????check_runlevel()?????????????????????С????????????м?????????????????м?????rc.d?????????????????rc0.d??rc1.d ….. rc6.d?????????????????2/3/5???????????????
???????????????init.d????????????Щ??????????????????Щ???????????????￡????缶??5?????????????rc5.d?￡???????????rc5.d?μ?????Щ??????????????init.d????????????????????init.d???????