path: root/zh/FAQ/install.sgml

<!-- $Id: install.sgml,v 1.6 1999-05-11 10:31:51 foxfair Exp $ -->
<!-- The FreeBSD Documentation Project -->
<!-- Translate into Chinese by foxfair@FreeBSD.ORG -->
<!-- English Version: 1.14 -->

  <sect>
    <heading>¦w¸Ë FreeBSD<label id="install"></heading>

    <sect1>
      <heading>§Ú¸Ó¤U¸ü­þ¨ÇÀÉ®×¥H¨ú±o FreeBSD¡H</heading>

      <p>³q±`§A¥u»Ý­n¤@±i³nºÐ image ÀÉ¡A<em>floppies/boot.flp</em>¡A§â¥¦«þ
	¨©¨ì 1.44MB ³nºÐ¤ù¤WµM«á±Ò°Ê¥¦¡A¦A¥h¤U¸ü¨ä¥Lªº³¡¥÷(¦w¸Ëµ{§Ç·|ºÞ
	²z§Aªº TCP/IP ³s½u¡A¥H¤Î tapes¡A¥úºÐ¾÷¡A³nºÐ¾÷¡ADOS ¤À³Î°Ï¡A¤Î
	¨ä¥L¥u­n¬O¦w¸Ë¹Lµ{¤¤»Ý­n¥Î¨ìªº¨Æª«)¡C

      <p>­Y§A¥u»Ý­n¦Û¤v¤U¸ü distributions(¥i¨³³tªº¥Ñ DOS Àɮרt²Î¨Ó¦w¸Ë)
	¡A¥H¤U¬O§Ú­Ì«Øij§A§ì¨Ó¦w¸Ëªº distributions¡G

      <itemize>
      <item> bin/<newline>
      <item> manpages/<newline>
      <item> compat*/<newline>
      <item> doc/ <newline>
      <item> src/ssys.* <newline>
      </itemize>

      <p>¦w¸Ëµ{§Çªº§¹¾ã«ü¥O¡A¥H¤Î§ó¦h´¶¹M©Ê¦w¸Ë®É·|¸I¨ìªº°ÝÃD¥i¥H¦b
	<url url="../handbook/install.html" 
	name="Handbook entry on installing FreeBSD.">³o¸Ì§ä¨ì¡C

    <sect1>
      <heading>±Ï©R¡I±Ò°Êªº³nºÐ image ÀɵLªk¶ë¨ì¤@¤ù³æ¿Wªº³nºÐ¤ù¸Ì¡I
      </heading>
      
      <p>¤@±i 3.5 ­^¦T(1.44MB)³nºÐ¤ù¥i¥H®e¯Ç 1474560 ¦ì¤¸²Õªº¸ê®Æ¡C
	±Ò°Êªº image ÀÉ´N­è¦n¬O³o­Ó¤j¤p¡C
      <p>¦b·Ç³Æ±Ò°Ê³nºÐ¤ù®É±`¨£ªº¿ù»~¦³¡G
      <itemize>
      <item>¨Ï¥Î <tt>FTP</tt> ®É¨S¦³¨Ï¥Î <tt>binary</tt> ¼Ò¦¡¤U¸ü³nºÐ
	image¡C
	<p>¬Y¨Ç FTP client ³nÅ饦­Ì¤º©wªº¶Ç¿é¼Ò¦¡¬O <tt>ascii</tt> 
	¨Ã¥B¸ÕµÛ§ó§ï¥ô¦óªº end-of-line ¦r¤¸¡A¥H²Å¦X³o­Ó client ¨t²Î
	¥»¨­ªºÂà´«¡C¤j³¡¤À±¡§Î¤U³o¥²µM·|·´·l±Ò°Ê image ÀÉ¡AÀˬd¤@¤U
	§A¤U¸üªº±Ò°Ê image Àɤj¤p¡G¦pªG³o¤£¬O<em>§¹¥þ¦a</em>»P server 
	ºÝ¤Wªº¤j¤p¬Û¦P¡A¨º»ò§Aªº¤U¸üµ{§Ç´N¦³°ÝÃD¡C
	<p>¸Ñ¨M¤èªk¡G¦b§A³s±µ¤W server ¦ý©|¥¼¶}©l¤U¸ü¬M¹³Àɤ§«e¡A
	¬Ý¨ì FTP ©R¥O´£¥Ü¸¹®É¥´ <tt>binary</tt>¡C

      <item>¨Ï¥Î DOS ªº <tt>copy</tt> ©R¥O(©Îµ¥®Äªº GUI ¤u¨ã)¨Ó§â±Ò
	°Ê image Àɶǰe¨ì³nºÐ¤ù¡C
	<p>Ãþ¦ü¹³ <tt>copy</tt> ªºµ{¦¡¡A¦b±Ò°Ê image ÀɳQ«Ø¥ß¨Ã¥Bª½±µ
	¶}¾÷«á¨Ã¨S¦³¥\¥Î¡C¬M¹³Àɸ̦³§¹¾ãªººÏºÐ¤º®e¡AºÏ­y¹ïºÏ­y¡A³o¥N
 	ªíµÛ§AµLªk¥ÎºÏ¤ù¤W©T©wªºÀÉ®×¥h¨ú¥N¥¦¡C
	§A¥²¶·§â¥¦¶Ç°e¨ì³nºÐ¤ùªº``raw''¤W¡A¨Ï¥Î§C¶¥¤Æ¤u¨ã(¹³¬O 
	<tt>fdimage</tt> ©Î <tt>rawrite</tt>)¡A³o¨Ç¦b 
	<url url="../handbook/install.html" name="installation guide to
	FreeBSD">¸Ì­±¦h¦³´y­z¡C
      </itemize>

    <sect1>
      <heading>¦w¸Ë FreeBSD ªº«ü¥O¦b­þ¸Ì¡H</heading>

      <p>§A¥i¥H¦b³o¸Ì§ä¨ì¦w¸Ë«ü¥O¡C
      <url url="../handbook/install.html" 
	name="Handbook entry on installing FreeBSD.">

    <sect1>
      <heading>­n°õ¦æ FreeBSD §ÚÁٻݭn¤°»ò¡H</heading>

      <p>§A»Ý­n¤@¥x 386 ©Î§ó¦nªº PC¡A¥]§t 5MB ©Î§ó¦hªº RAM ¥H¤Î¦Ü¤Ö 60MB
	ªººÏºÐªÅ¶¡¡C¥i¥H¶È¨Ï¥Î¤@­Ó§C¶¥ªº MDA ¹Ï§Î¥d¡A¦pªG§A­n°õ¦æ X11R6
	¡A´N»Ý­n VGA ©Î§ó¦nªºµø°T¥d¡C

      <p>¥ç°Ñ¦Ò³o­Ó³¹¸` <ref id="hardware" name="Hardware compatibility">

    <sect1>
      <heading>§Ú¥u¦³ 4MB RAM¡A¨º§Ú¯à¦w¸Ë FreeBSD ¶Ü¡H</heading>

      <p>FreeBSD 2.1.7 ¬O³Ì«á¤@­Ó¥i¦b 4MB ¨t²Î¤W³Q¦w¸Ëªºª©¥»¡C·sª©ªº 
	FreeBSD¡A¹³¬O 2.2¡A»Ý­n¦Ü¤Ö 5MB ¨Ó¦w¸Ë¥¦¦b¤@­Ó¥þ·sªº¨t²Î¤W¡C

      <p>FreeBSD ªº©Ò¦³ª©¥»¡A¥]¬A 3.0¡A³£¯à¦b 4MB ªº°O¾ÐÅé¤U°õ¦æ¡A¤£
	¹L¦w¸Ë®É¤£¯à¥u¥Î 4MB¡C¦pªG§A·Q³o¼Ë¡A§A¥i¥H¦b¦w¸Ë®É¥[¤JÃB¥~ªº
	°O¾ÐÅé¡AµM«áµ¥¨t²Î¥i¥H°õ¦æ«á¡A´«¦^ 4MB¡C©Î¬O§A¥i¥H§â§AªººÏºÐ
	¾÷¤Á¥X¤@­Ó 4MB ¥H¤W¸m´«ªÅ¶¡¡A¦w¸Ë¦n¨t²Î«á¦A§â¸m´«ªÅ¶¡¬å±¼¡C

      <p>FreeBSD 2.1.7 ¤]¦³¤£¯à¦b 4MB ¦w¸Ëªº±¡§Î¡C¥¿½Tªº»¡¡AÀ³¸Ó¬O«ü
	¤£¯à¦b°ò¥»ªº 640kB ¥[¤W 3MB ©µ¦ù°O¾ÐÅé¸Ì¦w¸Ë¡C¦pªG§Aªº¥D¾÷ªO
	¥i¥H­«·s§ä¦^¦b 640kB ¨ì 1MB ½d³ò¤¤¨º¨Ç``¿ò¥¢''ªº°O¾ÐÅé¡A¨º»ò
	©Î³\§AÁÙ¬O¥i¥H§â FreeBSD 2.1.7 ¸Ë°_¨Ó¡C

      <p>¸ÕµÛ¶i¤J§Aªº BIOS ³]©w¿ï³æ¨Ã§ä¤@­Ó``remap''¿ï¶µ¡A§â¥¦¥´¶}¡C
	§A©Î³\¤]¸Ó§â ROM shadowing µ¹Ãö±¼¡C

      <p>¥u¦b¦w¸Ë®É¨Ï¥Î 4MB ¥i¯à®e©ö¤@ÂI¡A«Ø¥ß¤@­Ó¥u¦³§A»Ý­nªº¿ï¶µªº
	®Ö¤ßµ{¦¡¡AµM«á´N¥i¥H¥u¥Î 4MB¡C

      <p>§A¤]¥i¥H¦w¸Ë 2.0.5 µM«á¦A§â§Aªº¨t²Î¥Î 2.1.7 ¦w¸Ëµ{¦¡¸Ì
	``upgrade''ªº¿ï¶µ¤É¯Å¨ì 2.1.7 ª©¥»¡C

      <p>¦w¸Ë«á¦pªG§A«Ø¥ß¤@­Ó¦Û­qªº®Ö¤ß¡A³o±N·|¦b 4MB ¤U°õ¦æ¡C´¿¦³
	¤H¦¨¥\ªº¥Î 2MB ¶}¾÷(¤£¹L¨t²Î´X¥G¤£¯à¥Î :-))¡C

    <sect1>
      <heading>
	§Ú¸Ó«ç»ò»s§@¦Û­qªº¦w¸Ë³nºÐ¤ù¡H
      </heading>

      <p>¥Ø«e§AµLªk*¥u*»s§@¤@­Ó¦Û­qªº¦w¸Ë³nºÐ¤ù¡C§A¥²¶·°µ¥X¾ã­Ó¥þ·sªº
	release ¨t²Î¡A³o¸Ì­±´N¥]¬A§Aªº¦w¸Ë³nºÐ¤ù¡C¬Y¨Ç¦b
	<tt>/usr/src/release/floppies/Makefile</tt> ¸Ìªºµ{¦¡½X°²³]¯àÅý
	§A*¥u*°µ¥X¨º¨Ç³nºÐ¤ù¡A¦ý¬O¨Æ¹ê¤WÁÙ¤£¦æ¡C

      <p>­n°µ¥X¦Û­qªº release ª©¥»¡A½Ð¿í´` <ref id="custrel" name="here">
	ªº«ü¥O¡C

    <sect1>
      <heading>§Ú¥i¥H¦b§Úªº PC ¤W¾Ö¦³¶W¹L¤@­Ó¥H¤Wªº§@·~¨t²Î¶Ü¡H</heading>

      <p>½Ð°Ñ¦Ò <url url="../tutorials/multios/multios.html"
      name="The multi-OS page.">

    <sect1>
      <heading>Windows 95 ¥i¥H¸ò FreeBSD ¨Ã¦s¶Ü¡H</heading>

      <p>¥ý¦w¸Ë Windows 95¡AµM«á¦A¸Ë FreeBSD¡CFreeBSD ªº±Ò°ÊºÞ²z­û
	·|±µµÛºÞ²z±Ò°Ê Win95 ©M FreeBSD ªº¤u§@¡C°²¨Ï§A²Ä¤G­Ó¤~¥h¸Ë 
	Win95¡A¥¦±N·|°Ý³£¤£°Ýªº²Ê¾|¦a§â§Aªº±Ò°ÊºÞ²z­ûÂмg¹L¥h¡C°²
	¦p³o¤w¸gµo¥Í¡A½Ð¬Ý¤U¤@¸`¡C

    <sect1>
      <heading>
	Windows 95 §â§Úªº±Ò°ÊºÞ²z­û±þ±¼¤F¡I§Ú¸Ó«ç»ò§â¥¦±Ï¦^¨Ó¡H
      </heading>

      <p>§A¥i¥H¥Î¥H¤U¨âºØ¤èªk¤§¤@¨Ó­«·s¦w¸Ë FreeBSD ªº±Ò°ÊºÞ²z­û¡G

      <itemize>
        <item>°õ¦æ DOS¡A¶i¤J§Aªº FreeBSD distributions ªº tools/ ¥Ø¿ý
	¨Ã§ä¨ì <bf>bootinst.exe</bf>¡C§A¥i¥H³o¼Ë°õ¦æ¥¦¡G

        <p><bf>bootinst.exe boot.bin</bf>

        <p>³o¼Ë±Ò°ÊºÞ²z­û±N·|¦A¦¸³Q¦w¸Ë¡C

        <item>¥Î FreeBSD ±Ò°Ê³nºÐ¤ù¦A¦¸¶}¾÷µM«á¶i¤J Custom ¦w¸Ë¿ï³æ
	¶µ¥Ø¡A¿ï¾Ü Partition¡A¿ï¾Ü¨º­Ó¥]§t±Ò°ÊºÞ²z­ûªººÏºÐ¾÷(¤j¦h¬O
	²Ä¤@­Ó)¡AµM«á·í¤À³Î°Ï½s¿è¾¹(partition editor)¥X²{®É¡A²Ä¤@¥ó
	¨Æ(·N«ä´N¬O¡G¤£­n°µ¥ô¦ó§ó§ï) ¥ý¿ï¾Ü (W)rite¡C·|¥X²{½T»{ªº¸ß
	°Ý¡A¦^µª yes¡AµM«á·í§A¬Ý¨ì Boot Manager ªº¿ï¾Ü´£¥Ü®É¡A½T©w
 	§A¿ïªº¬O"Boot Manager"³o¶µ¡C
	³o·|§â±Ò°ÊºÞ²z­û­«·s¼g¦^ºÏºÐ¸Ì¡C¸õÂ÷¦w¸Ë¿ï³æµM«á´N¸ò¥¿±`±¡§Î
	¤@¼Ë­«·s±Ò°ÊµwºÐ¡C
      </itemize>

    <sect1>
      <heading>§Ú¥i¥H¦b¤@­Ó¦³Ãa­y(bad blocks)ªººÏºÐ¤W¶i¦æ¦w¸Ë¶Ü¡H</heading>

      <p>FreeBSD ªº bad block (<htmlurl 
      url="http://www.freebsd.org/cgi/man.cgi?bad144" name="bad144">
      ©R¥O) ³B²z¨Ã«D 100&percnt §¹¥þ(¥Î¹Ï§Î¤Æ¨Ó¬Ý)¡A¦Ó¥B«Ü¤£©¯§Ú­n§i
	¶D§A°²¦p§A¦³¤@­Ó IDE ©Î ESDI ¸Ë¸m¥]§t¤j¶qªº bad blocks¡A¨º»ò
	FreeBSD ¥i¯à¤£¾A¦X§A¡I³oªí¥Ü¡A¹ï¨ä¥L¤j¦h¼Æªº IDE ¨t²Î¥i¯à¦³
	¥Î¡A§A¥i¯à·Q¦b©ñ±ó«e¥ý¹Á¸Õ¬Ý¬Ý¡C

      <p>¦pªG§A¦³¤@­Ó¦³ bad blocks ªº SCSI ¸Ë¸m¡A½Ð¬Ý <ref id="awre"
      name="this answer">.

    <sect1>
      <heading>·í§Ú±Ò°Ê¦w¸Ë³nºÐ¤ù®É¡A©_©Çªº¨Æ±¡µo¥Í¤F¡I</heading>

      <p>¦pªG§A¬Ý¨ì©_©Çªº¨Æ±¡¡A¹³¬O¾÷¾¹°±¦í¤F©Î¬O·í§A¸ÕµÛ±q¦w¸ËºÏ¤ù°_
	°Ê®É¬ðµM¦Û°Ê­«·s¶}¾÷¤F¡A³o¸Ì¦³¤T­Ó°ÝÃD§A¸Ó¥ý°Ý°Ý¦Û¤v:-

      <enum>
        <item>§A¬O§_¨Ï¥Î¤@­Ó·sªº¡A­è®æ¦¡¤Æ¹L¡A¨S¦³¥ô¦ó¿ù»~ªº³nºÐ¤ù(¥i
	¥H¬O¤@±i¥þ·s­è©î«Êªº¡A¦Ó«D¬O¨ººØ¤w¸g§Aªº§É¤U½ö¤F¤T¦~¡A¬OÂø»xÃØ
	°eªº«Ê­±ºÏ¤ù)¡H

        <item>§A¬O§_¥Î binary ¼Ò¦¡¤U¸ü³nºÐ¬M¹³ÀÉ¡H
	(¤£¥Î¤£¦n·N«ä¡A´Nºâ¬O§Ú­Ì¤§¤¤³Ì¦nªº¤@­Ó¤H¤]´¿·N¥~ªº§â binary
	ÀɥΠASCII ¼Ò¦¡¤U¸ü¦Ü¤Ö¤@¦¸¡I)

        <item>¦pªG§A¥¿¦b¨Ï¥Î¹³¬O Windows95 ©Î Windows NT ³o´XºØ·s«¬ªº
 	§@·~¨t²Î¡A§A¦³¨S¦³§â¨t²ÎÃö¾÷µM«á±Ò°Ê¨ì³Ì­ì©lª¬ºA¡A¥u¦³ DOS¡H
	³o¨Ç OS ¬Ý°_¨Ó·|ªý꨺¨Çª½±µ¾Þ§@µwÅ骺µ{¦¡¡A¹³¬O«Ø¥ßºÏºÐªºµ{¦¡
	¡A¥u­n¦b GUI Àô¹Ò¤Uªº DOS shell ´N·|¾É­P³o­Ó°ÝÃD¡C
      </enum>

      <p>¤]¦³¹L³ø§i¦³Ãö Netscape ·|¾É­P¤U¸ü±Ò°Ê³nºÐªº°ÝÃD¡A¦]¦¹¦pªG§A
	¥i¥H¡A³Ì¦n¨Ï¥Î§OºØ¤£¦Pªº FTP client ¡C

    <sect1>
      <heading>±Ï©R¡I§Ú¤£¯à±q tape ¦w¸Ë¡I</heading>

      <p>¦pªG§A±q tape ¦w¸Ë 2.1.7¡A§A¥²¶·¥Î¨C­Ó tar blocksize ¬O 10
	(5120 bytes)«Ø¥ß³o­Ó tape¡C¤º©wªº tar blocksize ¬O 20(10240
	bytes)¡AµM¦Ó¥Î³oºØ¤º©w¤j¤p«Ø¥ßªº tape µLªk¥Î¨Ó¦w¸Ë 2.1.7R¡F
	¦pªG§A¥Î³oºØ tapes¡A§A·|¬Ý¨ì¦³Ãö¸ê®Æ°O¿ý°Ï¤j¤p¹L¤jªº©ê«è°T
	®§¡C

    <sect1>
      <heading>¥Î¤@±ø¨ÃÁp½u(PLIP)³s±µ¨â¥x FreeBSD¡C
	</heading>

      <p>§ä¤@±ø laplink ½u¡A½T©w¨âÃä¹q¸£ªº®Ö¤ß³£¤ä´© lpt ÅX°Êµ{¦¡¡C

      <verb>
      $ dmesg | grep lp
      lpt0 at 0x378-0x37f irq 7 on isa
      lpt0: Interrupt-driven port
      lp0: TCP/IP capable interface
      </verb>

      <p>§â laplink ½u´¡¤J¨ÃÁp¬É­±¤W¡C

      <p>¥Î root ¨­¤À¦b¨â¥x¹q¸£¤W³]©w lp0 ªººô¸ô¬É­±°Ñ¼Æ¡CÁ|¨Ò¡A¦pªG
	§A·Q¥Î max ³s±µ moritz¡G

      <verb>
                 max <-----> moritz
IP Address    10.0.0.1      10.0.0.2
      </verb>

     max ºÝÀ³¸Ó³o¼Ë¶}©l¡G
     <verb>
	# ifconfig lp0 10.0.0.1 10.0.0.2
     </verb>

     moritz «h³o¼Ë¡G

     <verb>
	# ifconfig lp0 10.0.0.2 10.0.0.1
     </verb>

     <P>¦n¤F¡I¤]½Ð§A¬Ý¬Ý lp(4) ©M lpt(4) ªº manpages¡C

     <P>§A¤]¸Ó§â³o¨Ç¥D¾÷¥[¨ì /etc/hosts ¸Ì­±¡C

     <verb>
     127.0.0.1               localhost.my.domain localhost 
     10.0.0.1                max.my.domain max
     10.0.0.2                moritz.my.domain moritz
     </verb>

     <P>¥Î¥H¤U¤èªkÀˬd¬O§_¦³¥¿±`°Ê§@¡G

     on max:

<verb>
$ ifconfig lp0
lp0: flags=8851<UP,POINTOPOINT,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 10.0.0.1 --> 10.0.0.2 netmask 0xff000000 
</verb>

<verb>
$ netstat -r
Routing tables

Internet:
Destination        Gateway            Flags     Refs     Use     Netif Expire
moritz              max              UH          4   127592       lp0
</verb>

<verb>
$ ping -c 4 moritz
PING moritz (10.0.0.2): 56 data bytes
64 bytes from 10.0.0.2: icmp_seq=0 ttl=255 time=2.774 ms
64 bytes from 10.0.0.2: icmp_seq=1 ttl=255 time=2.530 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=255 time=2.556 ms
64 bytes from 10.0.0.2: icmp_seq=3 ttl=255 time=2.714 ms

--- moritz ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 2.530/2.643/2.774/0.103 ms
</verb>

    <sect1>
      <heading>
	§Ú¥i¥H¦b§Úªº½¥¤W«¬¹q¸£¥Î PLIP(Parallel Line IP)¦w¸Ë¶Ü¡H
      </heading>

      <p>¥Î laplink ¨ÃÁp½u³s±µ¨â¥x¹q¸£¥H¨Ï¥Î³o­Ó¯S©Ê¡G

      <verb>
            +----------------------------------------+
            |A-name A-End   B-End   Descr.  Port/Bit |
            +----------------------------------------+
            |DATA0  2       15      Data    0/0x01   |
            |-ERROR 15      2               1/0x08   |
            +----------------------------------------+
            |DATA1  3       13      Data    0/0x02   |
            |+SLCT  13      3               1/0x10   |
            +----------------------------------------+
            |DATA2  4       12      Data    0/0x04   |
            |+PE    12      4               1/0x20   |
            +----------------------------------------+
            |DATA3  5       10      Strobe  0/0x08   |
            |-ACK   10      5               1/0x40   |
            +----------------------------------------+
            |DATA4  6       11      Data    0/0x10   |
            |BUSY   11      6               1/0x80   |
            +----------------------------------------+
            |GND    18-25   18-25   GND -            |
            +----------------------------------------+
      </verb>

      <p>½Ð°Ñ¦Ò Mobile Computing ºô­¶ªº <ref id="pao" name="this note">¡C

    <sect1>
      <heading>
	§Ú¸Ó«ç»ò¨Ï¥Î¤@­ÓºÏºÐ¸Ë¸mªº geometry¡H<label id="geometry">
      </heading>

      <p>(¤@¥xºÏºÐªº"gromrtry"¡A§Ú­Ì«üªº¬O³o¥xºÏºÐ¤W cylinders, heads 
	©M sectors/track ªº¼Æ¥Ø - ¬°¤F¤è«K¥BºÙ¤§¬° C/H/S¡C³o¬O PC ªº
	BIOS ¥Î¨ÓŪ/¼gºÏºÐªº¨Ì¾Ú)¡C

      <p>¬°¤F¬Y¨Ç²z¥Ñ¡A³o¦ü¥G·|¾É­P«Ü¦h§xÂZ¡C­º¥ý¡A¤@¥x SCSI ¸Ë¸mªº
	<tt /physical/ geometry ¸ò FreeBSD ¦b¨Ï¥Îªº disk blocks ¬O§¹
	¥þµLÃöªº¡C¨Æ¹ê¤W¡A¨Ã¨S¦³©Ò¿×"physical geometry"³oºØªF¦è¡A³o
	¬O«üºÏºÐ¾÷¤WºÏ°Ï±K«×ªºÅÜ¤Æ - »s³y°Ó­n¨D¬O"¯u¹êªº"physical
	geometry ³q±`¬O«ü¡A¥L­Ì©Ò¯à§ä¥X®ö¶O³Ì¤ÖªÅ¶¡ªº geometry µ²ªG¡C
  	¹ï IDE ºÏºÐ¨Ó»¡¡AFreeBSD ¨Ï¥Î C/H/S ¤è¦¡¤u§@¡A¦ý¬O©Ò¦³²{¦b
	ªººÏºÐ¤w¸g¦b¤º³¡°Ñ¦Ò®É§â¥¦Âà´«¦¨ block ¤F¡C

      <p>¥t¥~´N¬O©Ò¿×ªº<tt /logical/ geometry - ³o¬O·í BIOS °Ý"§Aªº
	geometry ¬O¤°»ò¡H"ªº®É­Ô¡A©Ò±o¨ìªºµª®×¨Ã¥B§â¥¦¥Î¨Ó¦s¨úºÏºÐ¡C
	·í¶}¾÷®É FreeBSD ¨Ï¥Î BIOS ¸ê®Æ¡AÅý³o­Ó¥¿½T¬O¬Û·í­«­nªº¡C¥t¥~
	¡A¦pªG§A¦b¦P¤@­ÓºÏºÐ¾÷¤W¦³¤@­Ó¥H¤Wªº§@·~¨t²Î¡A¥L­Ì¥²¶·³£¦P·N
	grometry¡A§_«h§A¦b¶}¾÷®É·|¦³¤j°ÝÃD¡I

      <p>¹ï SCSI ºÏºÐ¾÷¨Ó»¡¡Ageometry ªº¨Ï¥Î¬O¨Ì¾a±Ò°Ê±±¨î¾¹¨Ó¤ä´© 
        extended translation (³o³q±`ºÙ¤§¬°"¹ï&gt;1GB DOS ºÏºÐ¾÷
        ªº¤ä´©©Î"Ãþ¦üªººÙ©I)¡C¦pªG¤£¤ä´©¡A¨º»ò¨Ï¥Î N cylinders¡A64 
        heads ©M 32 sectors/track¡A³o¸Ì'N'¬O«üºÏºÐ¾÷ªº MB ®e¶q¡CÁ|¨Ò
        ¨Ó»¡¡A¤@­Ó 2GB ªººÏºÐ¾÷À³¸Ó°²³]¥¦¦³ 2048 cylinders¡A64 heads
        ©M 32 sectors/track¡C

      <p>¦pªG¥¦½T©w<tt /¬O/ ¥´¶}ªº(³q±`´£¨Ñ³oºØ¤èªk¦b MSDOS ¤U¦³¬Y¨Ç­­
        ¨î)¡A¨Ã¥BºÏºÐ®e¶q¶W¹L 1GB¡A¨Ï¥Î M cylinders, ¨C­Ó track 63 sectors
	(*¦Ó«D* 64)¡A¥H¤Î 255 heads¡A³o¸Ì 'M' ¬O¨C MB ªººÏºÐ®e¶q°£¥H
	7.844238 (!)¡C©Ò¥H§Ú­Ìªº³o­Ó½d¨Ò¡A2G ºÏºÐ¾÷´N¦³ 261 cylinders, 
	¨C­Ó track 63 sectors ¥H¤Î 255 heads¡C

      <p>¦pªG§A¤£½T©w¥H¤W³o­Ó¡A©Î¬O FreeBSD ¦b¦w¸Ë¹Lµ{¤¤­n°»´ú geometry
	ªº¥¿½T©Ê®É¥¢±Ñ¤F¡A³Ì²³æªº¸Ñ¨M¤èªk³q±`¬O¦bºÏºÐ¤W«Ø¥ß¤@­Ó¤pªº DOS
	¤À³Î°Ï¡C¥¿½Tªº geometry À³¸Ó¯à³Q°»´ú¨ì¡]¦Ó¥B¦pªG§A¤£·Q«O¯d¥¦¡A
	§AÁ`¬O¥i¥H¦b¤À³Î°Ï½s¿è¾¹¸Ì§â³o­Ó DOS ¤À³Î°Ï²¾°£±¼¡A©Î¬O§â¥¦¯d¤U
        ¨Ó¡Aµ¹µ{¦¡¤Æºô¸ô¥d¨Ï¥Î©ÎÀH§A°ª¿³«ç»ò¥Î¥¦¡^¡C

      <p>¥t¥~¡A¦³¤@­Ó§K¶O¦Ó¦³¥Îªº¤½¥Îµ{¦¡¥s  ``<tt/pfdisk.exe/'' ÀHµÛ
        FreeBSD ´²¼½¥X¨Ó¡]¦ì©ó FreeBSD CDROM ªº <tt>tools</tt> ¤l¥Ø¿ý
        ¤U©Î¬O¦b¤j¦h¼Æªº FreeBSD ftp ¯¸¥x¤º¥i§ä¨ì¡^¡A³o­Óµ{¦¡¥i¥Î¨Ó§ä
	¥X¥t¤@§@·~¨t²Î¥¿¦b¨Ï¥ÎºÏºÐ¾÷¤Wªº­þ¶ô geometry¡CµM«á§A´N¥i¥H¦b
	¤À³Î°Ï½s¿è¾¹¸Ì­±¿é¤J¥¦¡C

    <sect1>
      <heading>·í§Ú¤À³ÎºÏºÐ¾÷®É¦³¥ô¦ó­­¨î¶Ü¡S</heading>

      <p>¬Oªº¡C§A¥²¶·½T»{§Aªº root ¤À³Î°Ï¬O¦b 1024 cylinders ¤§¤º¡AÅý
        BIOS ¥i¥H±q¨ä¤¤±Ò°Ê®Ö¤ß¡C(ª`·N¡G³o¬O PC ªº BIOS ¥\¯à­­¨î¡A¦Ó¤£
        ¬O FreeBSD ªº)

      <p>¹ï SCSI ¸Ë¸m¨Ó»¡¡A³o³q±`·t¥ÜµÛ root ¤À³Î°Ï±N©ñ¦b¶}©lªº 1024
        MB(©Î¬O¶}©lªº 4096MB¡A¦pªG extended translation ¬O¥´¶}ªº - ½Ð
        °Ñ¦Ò«e¤@¸`)¡C¹ï IDE ¨Ó»¡¡A¬ÛÃöªº³¡¥÷¬O 504MB¡C

    <sect1>
      <heading>
        ¥i¥H¨Ï¥ÎºÏºÐºÞ²zµ{¦¡(disk managers)¶Ü¡S©Î¬O¡A§Ú¦³¤@­Ó¥¨¤jªººÏºÐ¾÷¡I
      </heading>

      <p>FreeBSD »{ÃÑ Ontrack Disk Manager ¨Ã¥B¤¹³\¨Ï¥Î¥¦¡A¨ä¥Lªº disk
	managers «h¤£¦b¤ä´©¤§¦C¡C

      <p>¦pªG§A¥u·Q¦bºÏºÐ¾÷¤W¨Ï¥Î FreeBSD ¨º»ò§A®Ú¥»¤£»Ý­n disk manager¡C
	¥u­n§âºÏºÐ³]©w¦¨ BIOS ¯à§ì¨ìªº³Ì¤jªÅ¶¡(³q±`¬O 504 megabytes)¡A¨º»ò
	FreeBSD À³¸Ó´N¥i¥Hºâ¥X§A¨Æ¹ê¤W¾Ö¦³¦h¤ÖªÅ¶¡¡C¦pªG§A¥¿¨Ï¥Î¤@­Ó MFM
 	±±¨î¾¹¨Ó±±¨îªº¦ÑºÏºÐ¡A§A¥i¯à»Ý­n©ú¥Õªº§i¶D FreeBSD ­n¨Ï¥Î¦h¤Ö­Ó
	cylinders¡C

      <p>¦pªG§A·Q¦bºÏºÐ¤W¨Ï¥Î FreeBSD ©M¥t¤@­Ó§@·~¨t²Î¡A§A¥i¯à¤£»Ý­n
	disk manager¡G¥u­n½T©w FreeBSD ªº±Ò°Ê¤À³Î°Ï¸ò¨ä¥L§@·~¨t²Îªº 
	slice ³£¦ì©ó¶}©lªº 1024 cylinders ¤º¡C¦pªG§A¬Û·í¦a¤p¤ß¡A¤@­Ó
	20 megabytes ªº±Ò°Ê¤À³Î°ÏÀ³¸Ó´N°÷¤F¡C

    <sect1>
      <heading>
	·í§Ú±Ò°Ê FreeBSD¡A§Ú¬Ý¨ì ``Missing Operating System''
        <label id="missing_os">
      </heading>

      <p>³o¬O¤@­Ó¨å«¬ªº±¡§Î¡A¦³Ãö FreeBSD ¥H¤Î DOS ©Î¨ä¥L¦bºÏºÐ³B²z¤èªk
	¤W¦³½Ä¬ðªº OS <ref id="geometry" name="geometry.">¡C§A»Ý­n­«·s
	¦w¸Ë FreeBSD¡A¦ý¬O½Ð¿í·Ó¤W­±©Ò´£¨ìªº«ü¥OÀ³¸Ó´N¥i¥H¤F¡C

    <sect1>
      <heading>§Ú¬Ý¤£¨ì boot manager ªº 'F?' ´£¥Ü¸¹¡C</heading>

      <p>³o¬O«e¤@­¶©Ò´y­z°ÝÃDªº¥t¤@­Ó¼x¥ü¡C§Aªº BIOS geometry ©M FreeBSD
	ªº geometry ³]©w¤£¬Û¦P¡I¦pªG§Aªº±±¨î¾¹©Î BIOS ¤ä´© cylinders 
	translation (³q±`³Q¼Ð¥Ü¦¨``&gt;1GB drive support'')¡A¸ÕµÛ§â³o­Ó
	³]©w¥´¶}µM«á­«·s¦w¸Ë FreeBSD¡C

    <sect1>
      <heading>
	§Ú¦³ &gt;16MB RAM¡C³o·|¾É­P¥ô¦ó°ÝÃD¶Ü¡S<label id="bigram">
      </heading>

      <p>±q®Ä¯àªº¨¤«×¨Ó¬Ý¡A¤£·|¡CFreeBSD 2.X ¤º§t bounce buffers¡A³o¤¹³\
	§Aªº bus mastering controller ¦s¨ú¶W¹L 16MB¡C(ª`·N¦pªG§A¥¿¨Ï¥Î
	ISA ¸Ë¸m³oÀ³¸Ó¬O¥²»Ýªº¡A¾¨ºÞ¤@­Ó©Î¨â­Ó§ó¦­ªº EISA ©M VLB ¸Ë¸m¤]
	¥i¯à»Ý­n¥¦)¡C

      <p>¤]½Ð°Ñ¦Ò <ref id="reallybigram" name="&gt;64M machines"> 
	³o¸`¡A°²¦p§A¦³³o»ò¦h°O¾ÐÅé¡A©Î§A¨Ï¥Îªº¬O Compaq ©Î¬O¨ä¥L¯à³B²z
	³o»ò¦h¦³¥Î°O¾ÐÅ骺¾÷¾¹¡C

    <sect1>
      <heading>§Ú»Ý­n¦w¸Ë§¹¾ãªº­ì©lµ{¦¡(sources)¶Ü¡S</heading>

      <p>³q±`¬O¤£»Ý­n¡CµM¦Ó¡A·|±j¯P«Øij§A¦Ü¤Ö¦w¸Ë ``<tt/base/'' ³o­Ó
	source kit¡A³o¥]§t¼Æ­Ó³o¸Ì²³æ´y­z¹LªºÀɮסAÁÙ¦³ ``<tt/sys/''
	(kernel) source kit¡A³o¥]§t®Ö¤ßµ{¦¡ªº sources¡C¨t²Î¸Ì­±¤£»Ý
	­n¦³ sources ¤~¯à¾Þ§@¡AµM¦Ó¡A°£¤F kernel-configuration µ{¦¡
	<htmlurl url="http://www.freebsd.org/cgi/man.cgi?config"
	name="config">¥H¥~¡C¯Ê¤Ö®Ö¤ßªº sources¡A§Ú­Ìªº«Ø¿v¬[ºc¬O³]©w
	¦¨Åý§A¥i¥H±q§O³B¦p NFS ¨Ó±¾¤W°ß¿Wªº­ì©lµ{¦¡¡A¦]¦¹ÁÙ¬O¥i¥H»s
	§@·sªº binaries¡C¡]¦]¬° kernel-source ªº­­¨î¡A§Ú­Ì«Øij§A¤£­n
	ª½±µ§â¥¦±¾¦b <tt>/usr/src</tt> ¤U¡A³Ì¦n¥Î¨ä¥L¾A¦Xªº²Å¸¹©Ê­«
	½Æ³sµ²¨ì source tree ªº¤W¼h¬[ºc¡C¡^

      <p>½u¤W¾Ö¦³ sources ¨Ãª¾¹D¦p¦ó«Ø¥ß¤@­Ó¨t²Î¡A±N·|Åý§A¦b¤É¯Å¤µ«á
	FreeBSD ªº releases ª©¥»§ó®e©ö¤@ÂI¡C

      <p>­n¹ê»Úªº¿ï¾Ü sources ªº¤@­Ó¤l¶°¦X¡A¦b§A¦b¨t²Î¦w¸Ë¤u¨ãªº
	Distributions ¿ï³æ®É¡A¨Ï¥Î Custom ¿ï³æ¶µ¥Ø¡C<tt>src/install.sh</tt>
	script ±N·|§â sources distribution ªº³¡¥÷¦w¸Ë¶i¥h¡A¥D­n¬O¬Ý
	§A¶Ç¤J­þ¨Ç°Ñ¼Æ¡C

    <sect1>
      <heading>§Ú»Ý­n«Ø¥ß¤@­Ó®Ö¤ß¶Ü¡S</heading>

      <p>«Ø¥ß¤@­Ó·sªº®Ö¤ß¦b FreeBSD ¦w¸Ë¹Lµ{¤¤¬Oµ´¹ï¥²»Ýªº¤@­Ó¨BÆJ¡C
	¦ý·sª© releases ±a¨Ó¤@­Ó§ó¤Íµ½ªº®Ö¤ß³]©w¤u¨ã«ü¥Oªº¦n³B¡C¦b
	FreeBSD ±Ò°Ê´£¥Ü¸¹(boot:)®É¡A¨Ï¥Î "-c" flag §A´N·|¶i¤J¤@­Ó³]
	©w¿Ã¹õ¡A³o¤¹³\§A°µ±`¨£ ISA ¥dªº®Ö¤ß³]©w¡C

      <p>¤´µM«Øij§A³Ì«á«Ø¥ß¤@­Ó®Ö¤ß¡A¥u¥]§t§A»Ý­nªºÅX°Êµ{¦¡¡A³o¬O¬°¤F
	¸`¬Ù¤@ÂI RAM¡A¦ý¬O¹ï¤j¦h¼Æªº¨t²Î¨Ó»¡³o«o¤£¬OÄY®æªº­n¨D¡C

    <sect1>
      <heading>§Ú¤£¬O¦í¦b¬ü°ê¡A¨º§Ú¥i¥H¨Ï¥Î DES ¶Ü¡S</heading>

      <p>¦pªG¹ï§A¨Ó»¡¨Ï¥Î DES ®æ¦¡ªº¥[±K§Þ³N¤£¬Oµ´¹ï»Ý­nªº¡A§A¥i¥H¨Ï
	¥Î FreeBSD ªº¤º©w¥[±K§Þ³N¡A¦³<bf/§ó¦n/ ªº¦w¥þ©Ê¡A¨Ã¥B¨S¦³ÃB¥~
	ªº­­¨î¡CFreeBSD 2.0 ªº±K½X²{¦b¨Ï¥Î¤º©wªº <bf/MD5/-based ¥[¥H
	²V¦X¡A­n¥Î¦Û°Ê¯}¸Ñ±K½Xªºµ{¦¡¥h¯}¸Ñ¥¦¡A¤ñ°_ DES »Ý­n¨Ï¥Î§ó¦h
	CPU ±j¤Æ©Ê¥H«K¥Î¦Û°Ê±K½X¯}¸Ñ¾¹¡A¥¦ÁÙ¤¹³\§óªøªº±K½X¡C¤µ¤é¤£¨Ï
	¥Î <bf/MD5/-based ¥[±K§Þ³Nªº°ß¤@²z¥Ñ¬O¦b FreeBSD ©M«D FreeBSD
	¨t²Î¤W¨Ï¥Î¬Û¦Pªº±K½X¶µ¥Ø¡C

      <p>¦]¬° DES ¥[±Kºtºâªk¤£¯à¥Ñ US ¦Xªk¿é¥X¨ì°ê¥~¡A«D US ¨Ï¥ÎªÌ¤£
	À³¸Ó±q US FTP ¯¸¥x¤U¸ü³o­Ó³nÅé(<tt/secrdist/ªº¥ô¤@³¡¥÷)¡C

      <p>µM¦Ó¥t¥~ÁÙ¦³­Ó¦³®Äªº libcrypt¡A­ì©lµ{¦¡°ò¥»¤W¥Ñ¿D¬wªº
	David Burren ¼g¦¨¡C³o­Óµ{¦¡½X¥Ø«e¦b¬Y¨Ç«D US FreeBSD mirror
	¯¸¥x¤W¥i¥H§ä¨ì¡C³o­Ó¨S¦³­­¨îªº libcrypt ­ì©lµ{¦¡¡A¥H¤Î¨Ï¥Î¥¦
	ªº binaries µ{¦¡¡A¥i¥H¦b¥H¤U FTP ¯¸¥xÀò±o¡G

      <descrip>
        <tag/South Africa/
          <tt>ftp://ftp.internat.freebsd.org/pub/FreeBSD</tt><newline>
          <tt>ftp://storm.sea.uct.ac.za/pub/FreeBSD</tt>

        <tag/Brazil/
          <tt>ftp://ftp.iqm.unicamp.br/pub/FreeBSD</tt>

        <tag/Finland/
          <tt>ftp://nic.funet.fi/pub/unix/FreeBSD/eurocrypt</tt>
      </descrip>

      <p>«D US ªº <tt/securedist/ ¥i¥H·í­­¨î©Ê US <tt/securedist/ 
	ªº§¹¥þ´À¥N¡C³o­Ó <tt/securedist/ package ¦w¸Ë¤èªk¸ò US 
	package §¹¥þ¤@¼Ë(²Ó¸`½Ð°Ñ¦Ò¦w¸Ë¶·ª¾)¡C¦pªG§A­n¸Ë DES ¥[±Kªk
	§AÀ³¸Ó¾¨¥i¯à¦a¦b¦w¸Ë¨ä¥L³nÅ餧«e¥ý¸Ë¦n¥¦¡A¦A¸Ë¨ä¥L³nÅé¡C

      <p>«D US ¨Ï¥ÎªÌ½Ð¤Å±q USA ¤U¸ü¥ô¦ó¥[±K³nÅé¡C³o·|¾É­P¯¸¥xªººÞ²z
	ªÌ¦]¬°³Q¤U¸üªº³nÅé·S¤W¼Æ­Óªk«ß©Êªº§xÃø¡C

      <p>¤@­Ó«D US ªº Kerberos distribution ¥ç¥¿¦bµo®i¤¤¡A²{¦æª©¥»³q
	±`¥i¥Ñ°Î¦W FTP <tt>braae.ru.ac.za</tt> ¨ÓÀò±o¡C

      <p>¤]¦³¤@­Ó <ref id="mailing" name="mailing list"> ±Mªù¥Î¨Ó°Q½×
	«D US ¥[±K³nÅé¡C±ýÀò±o§ó¦h¸ê°T¡A±H¤@«Ê¤º§t³æ¿W¤@¦æ°T®§»¡
	``<tt/help/'' ªº email µ¹¡G

          <tt>&lt;majordomo@braae.ru.ac.za&gt;</tt>.

   <sect1>
    <heading>
	±Ò°Ê³nºÐ¶}©lŪ¤F¥i¬O«o°±¦b``Probing Devices...''¿Ã¹õ¡C
    </heading>

    <p>¦pªG§A¦w¸Ë¤F IDE Zip ©Î Jaz ¸Ë¸m¡A²¾°£¥¦¨Ã­«·s¸Õ¤@¹M¡C
	±Ò°Ê³nºÐ¤ù¥i¯à·|³Q³o¨Ç¸Ë¸m²V²c¤F¡C·í¨t²Î¦w¸Ë¦n¥H«á§A¥i¥H¦A
	§â¥¦±µ¦^¨Ó¡C§Æ±æ³o¦b¤§«áªº release ª©¥»¥i¥H³Q­×¥¿¡C

   <sect1>
    <heading>·í§Ú¦w¸Ë¦n­«·s±Ò°Ê¨t²Î«á¡A§Ú¬Ý¨ì``panic: cant mount root'' 
	ªº¿ù»~°T®§¡C
    </heading>

    <p>³o­Ó¿ù»~¬O¦]¬°±Ò°Ê°Ï¶ô¸ò®Ö¤ßµ{¦¡¹ïºÏºÐ¸Ë¸mªº»{ª¾¤£¬Û¦P¡C³q±`³o­Ó
	¿ù»~·|¥X²{¦bÂùºÏºÐªº IDE ¨t²Î¡AµwºÐ©ñ¦b master¡A©Î¬O¦b¤ÀÂ÷ªº
	IDE ±±¨î¾¹¤W¥u¦³³æ¤@ºÏºÐ¾÷¡A¦ý¬O FreeBSD ¸Ë¦b secondary IDE ¤W
        ¡C·í®Ö¤ß«ü©w²Ä¤G­ÓºÏºÐ±±¨î¾¹ªº²Ä¤@­ÓºÏºÐ¾÷ wd2 ®É¡A±Ò°Ê block 
        «o»{¬°¨t²Î¸Ë¦b wd1(²Ä¤G­Ó BIOS ºÏºÐ¾÷)¡C°»´ú§¹¸Ë¸m«á¡A®Ö¤ßµ{¦¡
        ¸ÕµÛ§â±Ò°Ê block »{¬°ªº±Ò°ÊºÏºÐ(wd1) mount °_¨Ó¡A¨Æ¹ê¤W«o¬O wd2
        ¡A©Ò¥H¥¢±Ñ¤F¡C

    <p>­n­×¥¿³o­Ó°ÝÃD¡A¥H¤U´XºØ¤èªk¤§¤@³£¥i¥H¸Ñ¨M¡G

    <enum>
     <item>·í Boot: ´£¥Ü¸¹¥X²{®É¡A¿é¤J¡G <tt>1:wd(2,a)kernel</tt>
	µM«á«ö Enter¡C¦pªG¨t²Î¶}©l¤F¡A´N°õ¦æ¥H¤U©R¥O¡G
<verb>
echo "1:wd(2,a)kernel" > /boot.config
</verb>
     Åý¥¦Åܦ¨¤º©wªº boot string¡C
     <item>§â FreeBSD ºÏºÐ¾÷²¾¨ì primary IDE controller¡A¦]¦¹µwºÐ¾÷¬O
	³sÄòªº¡C
     <item><url url="../handbook/kernelconfig.html" name="Rebuild your kernel,">
     ­×§ï¦³Ãö wd ³]©wªº¦æ¼Æ¡G

<verb>
controller      wdc0    at isa? port "IO_WD1" bio irq 14 vector wdintr
disk            wd0     at wdc0 drive 0
# disk            wd1     at wdc0 drive 1 # comment out this line

controller      wdc1    at isa? port "IO_WD2" bio irq 15 vector wdintr
disk            wd1     at wdc1 drive 0 # change from wd2 to wd1
disk            wd2     at wdc1 drive 1 # change from wd3 to wd2
</verb>

	¦w¸Ë·sªº®Ö¤ßµ{¦¡¡C
	¦pªG§A²¾°Ê§AªººÏºÐ¾÷¡A¨Ã§Æ±æ§â¥ý«eªº³]©w«ì´_¡A¥u­n§âºÏºÐ¥Î¹w´Á
	ªº³]©w¸m´«¦^¨ÓµM«á­«·s¶}¾÷¡C§Aªº¨t²ÎÀ³¸Ó´N¯à¦¨¥\ªº±Ò°Ê¡C
    </enum>

   <sect1>
     <heading>°O¾ÐÅ骺­­¨î¬O¤°»ò¡S</heading>
     
     <p>¹ï°O¾ÐÅé¨Ó»¡¡A(²z½×¤W)­­¨î¬O 4 gigabytes¡C1 gigabytes ¤w³Q´ú¸Õ
	¹L¡F¤@¯ë§A¤£¥i¯à¶R¨ì¥i¥H¤ä´©¶W¹L³o­Ó¼Æ¥Øªº i386 PC¡C

     <sect1>
     <heading>ffs Àɮרt²Îªº­­¨î¬O¤°»ò¡S</heading>
     
     <p>¹ï ffs filesystems ¦Ó¨¥¡A³Ì¤j²z½×­È­­¨î¦b 8 terabytes(2G blocks
	)¡A©Î·í¨Ï¥Î¤º©w 8K block ¤j¤p®É¡A­­¨î¬O 16TB¡CÁÙ¦³¡A³nÅé­­¨î¬O
	1 terabytes¡A¦ý¦pªG¬O¸g¹L­×§ïªºÀɮרt²Î¤W 4 terabytes ¬O¥i¯à(¨Ã
	¥B¦s¦b)ªº¡C

     <p>³æ¤@ ffs Àɮתº¤j¤p³Ì¤j¬OÁͪñ 1G blocks(4TB) - °²¦p block ¤j¤p¬O
	4K¡C

     <verb>
                           maxfilesize
                ----------------------------------
                2.2.7    3.0
fs block size   -stable  -current  works  should-work
-------------   -------  --------  -----  -----------
4K              4T-1       4T-1    4T-1   4+T
8K              32+G       8T-1    32+G   16T-1
16K             128+G      16T-1   128+G  32T-1
32K             512+G      32T-1   512+G  64T-1
64K             2048+G     64T-1   2048+G 128T-1
     </verb>

     <p>·í fs block ¤j¤p¬O 4K¡Atriple indirect block ¹B§@¨Ã¥B©Ò¦³ªº¨Æ±¡
	³£À³¸Ó¥Hªí¥Ü¦¨¨Ï¥Î triple indirect block ªº³Ì¤j fs block ¨Ó§@­­
	¨î(ªñ¦ü©ó 1K^3 + 1K^2 + 1K)¡A¦ý¦b fs block ¼Æ¥Ø¤W«o¦³¤@­Ó(¿ù»~)
	ªº 1G-1 ­­¨î¡C¹ï fs block ¼Æ¥Øªº­­¨îÀ³¸Ó¬O 2G-1¡C¦b fs block 
	¼Æ¥Ø±µªñ 2G-1 ®É¦³ÂI¿ù»~¡A¦ý·í fs block ¤j¤p¬O 4K ®É³o­Ó block
	¼Æ¥Ø¬O¤£¯à¹F¨ìªº¡C

     <p>block ¤j¤p¦pªG¬O 8K ©Î§ó¤j¡Afs block ¼Æ¥ØÀ³¸Ó­­¨î¦b 2G-1¡A¦ý¹ê
	»Ú fs block ¼Æ¥Ø«o­­¨î¦b 1G-1¡A°£¤F¦b -stable ®É triple indirect
	blocks ¬OµLªk¹F¨ìªº¡A©Ò¥H³Ì¦h fs block ¼Æ¥Øªº­­¨î¥i¥Hªí¥Ü¦¨¥Î
	double indirect blocks(ªñ¦ü©ó(blocksize/4)^2 + (blocksize/4))
	¡A¥B¦b -current ¤U¶W¹L³o­Ó­­¨î¥i¯à·|¾É­P°ÝÃD²£¥Í¡C¨Ï¥Î¥¿½Tªº
	2G-1 block ­­¨îªº½T·|¾É­P°ÝÃDµo¥Í¡C

     <sect1>
     <heading>§Ú¸Ó«ç»ò¦b³nºÐ¤W©ñ¤J 1TB ÀɮסH</heading>

     <p>§Ú¦Û¤v´N¦b³nºÐ¤ù¤W©ñ¦n´X­Ó :-)¡CÀɮתº³Ì¤j®e¶q¨Æ¹ê¤W¸òºÏºÐ³Ì¤j
 	ªº®e¶q¨Ã¨S¦³±K¤Á¬ÛÃö¡CºÏºÐªº³Ì¤j®e¶q¬O 1TB¡A³o¬O¤@­ÓÀɮפj¤p¥i
	¥H¶W¹LºÏºÐ®e¶qªº¤@­Ó¯S¦â¡C

     <p>¥H¤U½d¨Ò·|¦b¤@­Ó¨Ï¥Î¾ã­Ó 32K ªÅ¶¡³o¼Ë¤pªº root partition ºÏºÐ
	¤W«Ø¥ß¤@­Ó¤j¤p¬O 8T-1 ªºÀÉ®×(3 indirect blocks and 1 data block
	)¡Cdd «ü¥O»Ý­nÅý dd ¯à¦b¤@­Ó¤jÀɮפU°õ¦æ¡C

<verb>
ttyv0:bde@alphplex:/tmp/q> cat foo
df .
dd if=/dev/zero of=z bs=1 seek=`echo 2^43 - 2 | bc` count=1
ls -l z
du z
df .
ttyv0:bde@alphplex:/tmp/q> sh foo
Filesystem  1024-blocks     Used    Avail Capacity  Mounted on
/dev/sd0a         64479    27702    31619    47%    /
1+0 records in
1+0 records out
1 bytes transferred in 0.000187 secs (5346 bytes/sec)
-rw-r--r--  1 bde  bin  8796093022207 Sep  7 16:04 z
32	z
Filesystem  1024-blocks     Used    Avail Capacity  Mounted on
/dev/sd0a         64479    27734    31587    47%    /
ttyv0:bde@alphplex:/tmp/q> exit
</verb>

<p>Bruce Evans, September 1998
  </sect>