操作系统开发

开发平台：
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INSTALLB.8：源码内容
							%!PS-Adobe-1.0
%%Creator: devps (Pipeline Associates, Inc.)
%%CreationDate: Fri Sep 13 14:23:51 1996
%%Pages: (atend)
%%DocumentFonts: (atend)
/devps 180 dict def devps begin
/res 10.000000 def
/y_offset 843 def
/X{exch}bind def
/mm {transform round X round X itransform} bind def
/r{rmoveto}bind def
/m{moveto}bind def
/l{lineto}bind def
/rl{rlineto}bind def
/st{stroke}bind def
/gs{gsave}bind def
/gr{grestore}bind def
/cp{currentpoint}bind def
/np{newpath}bind def
/ct{curveto}bind def
systemdict /setpacking known
 { /savepacking currentpacking def true setpacking } if
/m0{0 0 moveto}bind def
/xc{//res div}bind def
/yc{//res neg div //y_offset add}bind def
/lc{yc X xc X l st}bind def
/mc{yc X xc X m}bind def
/el{gs /a X def a div 1 X scale cp np a xc 2 div 0 360 arc st gr}bind def
/ar{cp 7 2 roll np xc 5 1 roll atan 3 1 roll atan X arc st}bind def
/sp{yc X xc X 6 2 roll yc X xc X 6 2 roll yc X xc X 6 2 roll ct}bind def
/V{//res neg div //y_offset add
currentpoint pop X
m}bind def
/H{//res div
0 transform X round X itransform pop
currentpoint X pop
moveto}bind def
/h{//res div 0 r}bind def
/v{//res neg div 0 X r}bind def
/S{X H show}bind def
/A{H //res div 1 index stringwidth pop sub 1 index length div 0 3 2 roll ashow}bind def
/psize 10 def
/height 0 def
/cheight { height 0 ne { height } { psize } ifelse } bind def
/slant 0 def
/FF{findfont X dup 30 div 0 mm pop setlinewidth /psize X def
    [psize 0 cheight slant sin slant cos div mul cheight 0 0]
    makefont setfont}bind def
/shade{gs
 /dy X def
 /dx X def
 np m
 0 /dy rl
 /dx 0 rl
 0 /dy neg rl
 /dx neg 0 rl
 closepath
 .9 setgray
 fill
gr}bind def
1 setlinecap
/resolution res 72 mul def
/startFig {
	/SavedState save def
	userdict maxlength dict begin
	currentpoint transform
	DocumentInitState setmiterlimit setgray setdash setlinejoin setlinecap
		setlinewidth setmatrix
	itransform moveto
	/ury exch def
	/urx exch def
	/lly exch def
	/llx exch def
	/y exch 72 mul resolution div def
	/x exch 72 mul resolution div def
	
	currentpoint /cy exch def /cx exch def
	/sx x urx llx sub div def
	/sy y ury lly sub div def
	sx sy scale
	cx sx div llx sub
	cy sy div ury sub translate
	
	/DefFigCTM matrix currentmatrix def
	/initmatrix {
		DefFigCTM setmatrix
	} def
	/defaultmatrix {
		DefFigCTM exch copy
	} def
	/initgraphics {
		DocumentInitState setmiterlimit setgray setdash 
			setlinejoin setlinecap setlinewidth setmatrix
		DefFigCTM setmatrix
	} def
	/showpage {
		initgraphics
	} def
}bind  def
/clipFig {
	currentpoint 6 2 roll
	newpath 4 copy
	4 2 roll moveto
	6 -1 roll exch lineto
	exch lineto
	exch lineto
	closepath clip
	newpath
	moveto
}bind  def
/doclip { llx lly urx ury clipFig } def
/endFig {
	end SavedState restore
}bind  def
/globalstart {
	fontnum psize slant height resolution currentpoint 
	pagesave restore gsave 
}bind  def
/globalend {
	grestore moveto
	/resolution exch def /height exch def
	/slant exch def /psize exch def /fontnum exch def
	F
	/pagesave save def
}bind  def
/fontnum 1 def 
systemdict /setpacking known { savepacking setpacking} if
end
/BP{
save mark devps begin m0
/DocumentInitState [ matrix currentmatrix currentlinewidth currentlinecap
currentlinejoin currentdash currentgray currentmiterlimit ] cvx def
}bind def
/EP{
end cleartomark restore showpage}def
/Encoding-1 256 array def
0 1 255 {Encoding-1 exch /.notdef put} for
Encoding-1 8#301 StandardEncoding 8#101 26 getinterval putinterval %A-B
Encoding-1 8#341 StandardEncoding 8#141 26 getinterval putinterval %a-b
Encoding-1 8#241 StandardEncoding 8#301 16 getinterval putinterval %accents
Encoding-1 8#373 StandardEncoding 8#365 1 getinterval putinterval %dotlessi
Encoding-1
dup 8#41 /copyright put
dup 8#42 /registered put
dup 8#43 /trademark put
dup 8#44 /logicalnot put
dup 8#45 /Eth put
dup 8#46 /eth put
dup 8#47 /Thorn put
dup 8#50 /thorn put
dup 8#51 /brokenbar put
dup 8#52 /degree put
dup 8#53 /divide put
dup 8#54 /multiply put
dup 8#55 /minus put
dup 8#56 /onehalf put
dup 8#57 /onequarter put
dup 8#60 /threequarters put
dup 8#101 /Aacute put
dup 8#102 /Acircumflex put
dup 8#103 /Adieresis put
dup 8#104 /Agrave put
dup 8#105 /Aring put
dup 8#106 /Atilde put
dup 8#107 /Ccedilla put
dup 8#110 /Eacute put
dup 8#111 /Ecircumflex put
dup 8#112 /Edieresis put
dup 8#113 /Egrave put
dup 8#114 /Iacute put
dup 8#115 /Icircumflex put
dup 8#116 /Idieresis put
dup 8#117 /Igrave put
dup 8#120 /Ntilde put
dup 8#121 /Oacute put
dup 8#122 /Ocircumflex put
dup 8#123 /Odieresis put
dup 8#124 /Ograve put
dup 8#125 /Otilde put
dup 8#126 /Scaron put
dup 8#127 /Uacute put
dup 8#130 /Ucircumflex put
dup 8#131 /Udieresis put
dup 8#132 /Ugrave put
dup 8#133 /Ydieresis put
dup 8#134 /Zcaron put
dup 8#135 /aacute put
dup 8#136 /acircumflex put
dup 8#137 /adieresis put
dup 8#140 /agrave put
dup 8#141 /aring put
dup 8#142 /atilde put
dup 8#143 /ccedilla put
dup 8#144 /eacute put
dup 8#145 /ecircumflex put
dup 8#146 /edieresis put
dup 8#147 /egrave put
dup 8#150 /iacute put
dup 8#151 /icircumflex put
dup 8#152 /idieresis put
dup 8#153 /igrave put
dup 8#154 /ntilde put
dup 8#155 /oacute put
dup 8#156 /ocircumflex put
dup 8#157 /odieresis put
dup 8#160 /ograve put
dup 8#161 /otilde put
dup 8#162 /scaron put
dup 8#163 /uacute put
dup 8#164 /ucircumflex put
dup 8#165 /udieresis put
dup 8#166 /ugrave put
dup 8#167 /ydieresis put
dup 8#170 /zcaron put
pop
/Enc-dict 30 dict def
Enc-dict /tmpstr1 50 string put
Enc-dict /tmpstr2 50 string put
Enc-dict /tmpstr3 50 string dup (Encoding-) exch cvs pop put
/AEnc-def { % arguments: the original font's name, encoding nr
Enc-dict begin
tmpstr2 cvs /Enc-no exch def % Remember the number in a string
dup /OrigName exch def % remember the name
findfont dup maxlength dict /newdict exch def % get dictionary for new font
{ exch dup /FID ne
   { exch newdict 3 1 roll put }
   { pop pop } % Ignore FID
   ifelse
} forall
newdict begin
/Encoding
  tmpstr3 9 Enc-no putinterval tmpstr3 0 9 Enc-no length add getinterval
  cvn load
  def % Replace encoding
currentdict /UniqueID known
{ /UniqueID UniqueID Enc-no cvi 49999 mul add def } if % Derive New UniqueID
end % newdict
/FNlength OrigName tmpstr1 cvs length def % convert name, remember length
FNlength 1 add Enc-no length add string
dup 0 OrigName tmpstr1 cvs putinterval
dup FNlength (-) putinterval
dup FNlength 1 add Enc-no putinterval
dup 0 tmpstr1 0 FNlength getinterval putinterval % Add old name
cvn dup newdict /FontName 3 2 roll put newdict definefont
end % Enc-dict
} def
/Times-Roman 1 AEnc-def pop
/R-1{/Times-Roman-1 FF}def
/Times-Bold 1 AEnc-def pop
/B-1{/Times-Bold-1 FF}def
/R{/Times-Roman FF}def
/B{/Times-Bold FF}def
/I{/Times-Italic FF}def
%%EndProlog
%%Page: 1 1
BP
/slant 0 def
/height 0 def
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10 R
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(masterboot)452 2536 A
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1268(N)S
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1587(may)S
1803(be)S
1941(used)S
2168(to)S
2290(make)S
2552(a)S
2641(device)S
(bootable)346 2948 A
3338(by)S
3482(constructing)S
4023(a)S
4112(kernel)S
4408(image)S
4698(and)S
(installing)374 4887 A
2256 V
(bootstrap)374 1080 A
1481(code)S
1698(into)S
1881(the)S
(boot)178 2031 A
2236(block)S
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2597(a)S
2669(Minix)S
2940(256le)S
3095(system.)S
3450(To)S
(understand)441 3588 A
4055(how)S
4254(this)S
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4591(be)S
(done)195 4712 A
4933(one)S
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1080(has)S
1239(to)S
(know)223 1342 A
1590(what)S
1811(happens)S
2165(when)S
2408(a)S
2478(PC)S
2626(is)S
(booted.)298 2718 A
2544 V
1080(When)S
1348(the)S
1499(power)S
1779(is)S
1874(turned)S
2159(on)S
2287(the)S
2438(typical)S
2740(PC)S
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3216(to)S
3322(read)S
3525(the)S
3677(256rst)S
3863(sector)S
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4463(hard)S
4675(disk)S
((from)230 4875 A
5138(the)S
2784 V
1080(so-called)S
1472(master)S
(boot)178 1769 A
1975(sector))S
(will)157 2278 A
2463(immediately)S
(replace)292 2995 A
3316(itself)S
3547(by)S
3676(the)S
3828(code)S
(found)234 4047 A
4310(in)S
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4755(sector)S
5025(of)S
5138(the)S
2904 V
1080(active)S
(partition.)366 1351 A
1772(Thus)S
2003(the)S
2156(PC)S
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2406(now)S
2609(executing)S
3030(the)S
(bootstrap)374 3183 A
3587(code)S
(found)234 3807 A
4071(in)S
4179(the)S
4332(256rst)S
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4788(of)S
4901(/dev/fd0,)S
3024 V
(/dev/hd1,)376 1080 A
(/dev/hd2,)376 1482 A
(/dev/hd3,)376 1884 A
2286(or)S
(/dev/hd4.)376 2396 A
2823(The)S
(bootstrap)374 3006 A
(will)157 3406 A
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10 R
(mounted)351 2630 A
3006(on)S
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10 R
(bootable,)371 3358 A
3754(enter)S
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4129(following:)S
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1566(/usr/mdec/boot)S
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4477(the)S
(bootblock)401 4635 A
5071(code)S
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(placed)263 1080 A
1372(in)S
1479(the)S
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2585(and)S
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(will)157 2844 A
3030(take)S
3227(care)S
3424(of)S
3536(loading)S
3865(the)S
4016(kernel)S
4296(image)S
4570("minix")S
4914(from)S
5138(the)S
4224 V
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1774(the)S
1925(256le)S
2082(system.)S
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2960((8))S
3106(for)S
3252(a)S
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4891(that)S
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2535(/dev/fd0)S
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4293(as)S
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4464 V
10 B
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1673(normally)S
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9 R
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10 B
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10 R
2001(:])S
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10 R
(...)75 2611 A
10 I
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4872 V
10 R
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10 B-1
1624(-)S
10 B
1681(image)S
10 R
1965(option)S
2248((or)S
2393(the)S
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10 B
2600(i)S
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3112(combines)S
3524(the)S
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4329(needed)S
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4748(run)S
4910(Minix)S
5183(in)S
4992 V
1440(one)S
1619(256le.)S
1832(Only)S
2067(the)S
2224(names)S
2515(and)S
2694(a)S
2773(few)S
2959(zero)S
3167(bytes)S
3413(are)S
3571(inserted)S
3924(into)S
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5143(for)S
5112 V
1440(identi256cation)S
2001(and)S
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2945(to)S
3054(pad)S
3230(separate)S
(pieces)252 3592 A
3875(to)S
3984(sector)S
(boundaries)441 4256 A
4728(for)S
4877(fast)S
5054(load-)S
5232 V
1440(ing.)S
5400 V
1440(An)S
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5161(by)S
5520 V
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1721(So)S
1862(more)S
2104(than)S
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3448(included)S
3828(in)S
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4097(image,)S
(each)185 4402 A
4621(with)S
4834(a)S
4913(different)S
5640 V
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2332(instance.)S
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(1996)200 5061 A
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10 I
2468(backup-256le)S
10 R
(count=1)330 2940 A
7536 V
1440(A)S
1542(simple)S
1839('cat)S
10 I
2021(backup-256le)S
10 R
2498(>)S
10 I
2585(device)S
10 R
2843(')S
(will)157 2907 A
3094(put)S
3252(it)S
3338(back.)S
3608(You)S
3811(can)S
3981(also)S
4173(use)S
10 B
4337(fdisk)S
4580(/mbr)S
10 R
(under)229 4823 A
5082(MS-)S
7903 V
720(September)S
1176(13,)S
(1996)200 1326 A
4990(Page)S
5211(2)S
8143 V
EP
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BP
/slant 0 def
/height 0 def
480 V
10 R
720(INSTALLBOOT)S
1425(()S
1467(8)S
1525())S
2696(Eighth)S
(Edition)296 2989 A
4422(INSTALLBOOT)S
5127(()S
5169(8)S
5227())S
960 V
1440(DOS)S
1667(5.0)S
1817((or)S
1960(newer))S
2266(to)S
2369(restore)S
2669(the)S
2817(master)S
(bootstrap.)399 3111 A
1128 V
9 R
720(F)S
722(FI)S
774(IL)S
807(LE)S
865(ES)S
923(S)S
1248 V
10 B
1080(/usr/mdec/bootblock)S
10 R
2330(Minix)S
(bootstrap)374 2601 A
3001(for)S
3145(the)S
3294(Minix)S
3565(root)S
3753(device.)S
4092(To)S
4230(be)S
(placed)263 4351 A
4640(in)S
4744(the)S
(boot)178 4893 A
5098(sec-)S
1368 V
2330(tor.)S
1536 V
10 B
1080(/usr/mdec/boot)S
10 R
2330(Minix)S
2614(Boot)S
2848(Monitor.)S
3266(Can)S
3467(usually)S
3796(be)S
(found)234 3931 A
4205(in)S
4323(the)S
4486(root)S
4688(directory)S
5092(of)S
5216(a)S
1656 V
(bootable)346 2330 A
2701(device.)S
1824 V
10 B
1080(/usr/mdec/masterboot)S
10 R
2330(Master)S
(bootstrap.)399 2637 A
3088(Can)S
3277(be)S
(placed)263 3399 A
3689(in)S
3794(the)S
3944(256rst)S
4128(sector)S
4396(of)S
4507(a)S
4579(disk)S
4774(to)S
4880(select)S
5138(the)S
1944 V
2330(active)S
(partition.)366 2608 A
3036(In)S
3157(a)S
3239(Minix)S
3521(primary)S
(partition)341 3877 A
4255(it)S
4347(selects)S
4652(the)S
4811(active)S
5088(sub-)S
2064 V
(partition.)366 2330 A
2232 V
10 B
1080(/usr/mdec/extboot)S
10 R
2330(Extended)S
(partition)341 2735 A
(bootstrap.)399 3101 A
2400 V
9 R
720(S)S
722(SE)S
774(EE)S
832(E)S
913(A)S
915(AL)S
983(LS)S
1041(SO)S
1093(O)S
2520 V
10 B
1080(part)S
10 R
1265((8),)S
10 B
1433(monitor)S
10 R
1780((8).)S
2688 V
9 R
720(D)S
722(DI)S
790(IA)S
823(AG)S
891(GN)S
959(NO)S
1027(OS)S
1095(ST)S
1147(TI)S
1205(IC)S
1238(CS)S
1300(S)S
2808 V
10 I
1080(Boot)S
10 R
1295(doesn't)S
1616(256t)S
1725(on)S
10 I
1850(device)S
2928 V
10 R
1440(If)S
1542(there)S
1779(is)S
1881(no)S
(space)224 2016 A
2275(on)S
2410(the)S
2568(device)S
2866(to)S
2979(add)S
3159(the)S
(boot)178 3317 A
3530(code.)S
3805(This)S
4019(usually)S
4344(means)S
4636(that)S
4822(there)S
5059(is)S
5161(no)S
3048 V
(boot)178 1440 A
1643(code)S
1858(in)S
1961(the)S
2109(256le)S
2263(system)S
(you)150 2567 A
2742(use)S
10 B
2901(installboot)S
10 B-1
3379(-)S
10 B
3436(device)S
10 R
3730(on.)S
3216 V
10 I
1080(Image)S
10 R
1357(doesn't)S
1678(256t)S
1787(on)S
10 I
1912(device)S
3336 V
10 R
1440(If)S
1533(the)S
1681(device)S
1969(is)S
2061(too)S
2214(small)S
2457(for)S
2600(all)S
2726(the)S
2874(images)S
(you)150 3184 A
3359(try)S
3496(to)S
3599(put)S
3752(on)S
3877(it.)S
3504 V
9 R
720(B)S
722(BU)S
784(UG)S
852(GS)S
920(S)S
3624 V
10 R
1080(It)S
1167(has)S
1326(four)S
1519(more)S
1751(options)S
2071(than)S
2269(the)S
2417(SunOS)S
(installboot)424 2727 A
3176(program)S
3542(it)S
3623(is)S
3715(modeled)S
4086(after.)S
3792 V
1080(The)S
(bootblock)401 1272 A
1708(code)S
1933(has)S
2102(been)S
2327(crunched)S
2731(to)S
2844(such)S
3063(ugliness)S
3427(that)S
(you)150 3613 A
3798(can)S
3973(use)S
4142(it)S
4233(to)S
4346(scare)S
(little)185 4589 A
4810(kids)S
5013(out)S
5177(of)S
3912 V
(your)184 1080 A
1289(garden.)S
4080 V
9 R
720(A)S
722(AU)S
790(UT)S
858(TH)S
916(HO)S
984(OR)S
1052(R)S
4200 V
10 R
1080(Kees)S
1307(J.)S
1396(Bot)S
1566((kjb@cs.vu.nl))S
7903 V
720(Page)S
941(3)S
4455(September)S
4911(13,)S
(1996)200 5061 A
8143 V
EP
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