  Battery Powered Linux Mini-HOWTO
  Hanno Mueller, hmueller@kabel.de
  5 May 1997

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3.  APM (Advanced Power Management)

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       Advanced Power Management BIOS support: Yes
       Ignore USER SUSPEND: No
       Enable PM at boot time: Yes
       Make CPU Idle calls when idle: Yes
       Enable console blanking using APM: Yes
       Power off on shutdown: Yes

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$B$9!#F1;a$O!V(BX $B$r5/F0$9$k$H!"2hLL$,>CEt$7$F$7$^$&$H$$$&>I>u$,$G$^$9!#$3$N(B
$B>I>u$OG$0U$N%-!<$r2!$7$F$d$k$H2r>C$G$-$k$N$,$U$D$&$G$9!#$3$l$O:3:Y$JLdBj(B
$B$G$9$,!"$$$i$$$i$NH(B
$B$7$F$/$@$5$$!W$H=R$Y$F$$$^$9!#F1;a$O$5$i$K!V%G%#%9%W%l!<$N%P%C%/%i%$%H$N(B
$Bl9g$d$b$H$NHG$,(B"module version information"$B!V$"(B
$B$j!W$G9=C[$7$?$b$N$G$"$C$?>l9g$K$O!"%I%i%$%P$N:F9=C[$,I,MW$G$9!#(B("module
version information" $B$NA*Br9`L\$O%+!<%M%k@_Dj$N(B"loadable module support"
$B$N9`$K$"$j$^$9(B)

PCMCIA $B%I%i%$%P$r9=C[$9$kJ}K!$N>\:Y$K$D$$$F$O(B PCMCIA-HOWTO $B$r8fFI(B
$B$_2<$5$$!#$"$k$$$O(B Linux PCMCIA $B%I%i%$%P$N%[!<%`%Z!<%8$G$"$k(B
http://hyper.stanford.edu/HyperNews/get/pcmcia/home.html $B$r$*K,$M2<$5$$!#(B

3.4. apmd $B%Q%C%1!<%8(B

APM $B$NAH$_9~$_$r:Q$^$;$?$i!"(Bapmd $B%Q%C%1!<%8$r(B Linux APM $B%I%i%$%P$NJG$+$i(B
$BCLW$9$k$H7Y9p$rH/$7$F$/$l$^$9!#(Bapm $B$O%7%9%F%`$r0l;~Dd;_$5$;$k$?$a(B
$B$N%7%'%k%3%^%s%I$G$9!#$^$?!"(Bxamp $B$OEECS$N8=67$rI=<($9$k$b$N$G$9!#(B

($BCm(B:$B0l;~Dd;_>uBV$+$iI|5"$7$?:]$K(B PCMCIA $B%+!<%I$KLdBj$,H/@8$9$k$h$&$J>l9g(B
$B$K$O!"JL$N(B apmd $B%Q%C%1!<%8$r(B http://www.cut.de/bkr/linux/apmd/apmd.html
$B$+$iF~uBV$K$O$$$kA0$K(B PCMCIA $B%I%i%$%P%b%8%e(B
$B!<%k$rl9g(B

$B%3%s%T%e!<%?!<$N(B BIOS $B$,>JEENO5!G=$rA4$/%5%]!<%H$7$F$$$J$$>l9g(B(apm $B$,$J$$(B
$B8E$$(B BIOS $B$G$b>/$J$/$H$b%O!<%I%G%#%9%/$d%G%#%9%W%l!<$rBT5!>uBV$K$9$k$3$H(B
$B$O2DG=$J$O$:$G$9(B)$B$K$b!"(B hdparm -S $B$G%O!<%I%G%#%9%/$NBT5!;~4V$r@_Dj$9$k$3(B
$B$H$,$G$-$^$9!#$3$l$@$1$G$b8z2L$O@dBg$G$9!#%O!<%I%G%#%9%/$OBgNL$NEENO$r>C(B
$BHq$9$k$+$i$G$9!#(Bhdparm $B$OAH$_9~$_:Q$N$O$:$G$9$+$i!"(Bhdparm $B$N%^%K%e%"%k$r(B
$BFI$s$GL?Na$N=q$-J}$rD4$Y$F$/$@$5$$!#(B

4. $B0lHLE*$J%7%9%F%`@_Dj$NJQ99Nc(B

$B%i%C%W%H%C%W$G(BLinux $B$r;H$&$h$&$K$J$C$F$+$i!"%O!<%I%G%#%9%/$X$N%"%/%;%9$,(B
$B?tIC$4$H$KH/@8$7$F$$$k$3$H$K5$$,IU$-$^$7$?!#$3$l$O%7%9%F%`$K$@$l$b%m%0%$(B
$B%s$7$F$$$J$$$H$-$bF1$8$G$7$?!#%O!<%I%G%#%9%/$O7h$7$F>J;q8;%b!<%I$KF~$k$3(B
$B$H$,$J$+$C$?$N$G$9!#%O!<%I%G%#%9%/$N6nF0$rM^@)$9$l$P!"EECS$N2TF/;~4V$O%0(B
$B%s$HD9$/$J$j$^$9!#$3$N>O$K$3$N$?$a$N$d$jJ}$r=8$a$?$N$O!"$=$N8z2L$,Bg$-$$(B
$B$+$i$J$N$G$9!#(B

$B;n83$KMxMQ$7$?$N$O(B RedHat 4.1$B$G$9!#G[I[$K$h$C$F$O@_Dj%U%!%$%k$NCV>l=j$,(B
$B0[$J$C$F$$$k$+$b$7$l$^$;$s(B($B$=$N@a$K$O!"EvJ}$^$G8fCN$i$;2<$5$$(B)$B!#(B

4.1. crond $B%G!<%b%s$H(B atrun

$B0lJ,$4$H$K5/F0$9$k%W%m%;%9$,$"$k$+$I$&$+(B/etc/crontab $B$H$$$&%U%!%$%k$rD4(B
$B$Y$F2<$5$$!#(Batrun $B$,8+$D$+$k$3$H$,B?$$$G$7$g$&!#(B

($BLuCm(B: slackware $B$N>l9g!"(B /var/spool/crontab/root $B$G$9(B)

at $BL?Na$r;H$($P!"$3$l$+$i@h$=$N$&$A5/F0$5$l$kL?Na$r%9%W!<%k$G$-$^$9!#(B
Linux $B%7%9%F%`$NCf$K$O!"$3$N;E;v$r(B atd  $B$H$$$&%G!<%b%s$K$^$+$;$F$$$k$b$N(B
$B$b$"$j$^$9!#$3$l$KBP$7(BRedHat $B$J$I$N>l9g$K$O!"(Bcrond $B$H$$$&%G!<%b%s$,0lJ,(B
$BKh$K(B atrun $B$r5/F0$7$^$9!#(B

$B$?$$$F$$$N%7%9%F%`$N>l9g!"$3$l$OK\Ev$KI,MW$J$b$N$G$O$"$j$^$;$s!#(Bat $BL?Na(B
$B$,@53N$J;~4V$K5/F0$5$l$k$3$H$,;`3hE*$G$"$k$H$$$&$N$O5)$@$+$i$G$9!#(B/etc/
crontab $B$K$O0J2<$N$h$&$J0l9T$,8+$D$+$k$+$b$7$l$^$;$s!#(B

       # Run any at jobs every minute (at $B$r0lJ,$4$H$K5/F0(B)
       * * * * * root [ -x /usr/sbin/atrun ] && /usr/sbin/atrun

$B$3$l$r0J2<$N$h$&$K=q$-49$($F$b2?$NLdBj$b$"$j$^$;$s!#(B

       # Run any at jobs every hour (at $B$r0l;~4V$4$H$K5/F0(B)
       00 * * * * root [ -x /usr/sbin/atrun ] && /usr/sbin/atrun


$B>\$7$/$O(B crontab.5 $B$N%^%K%e%"%k$r8fFI$_2<$5$$!#%U%)!<%/$K$h$C$F$O(B crond
$B%G!<%b%s$J$7$G$b5!G=$7$^$9!#$3$N>l9g$K$O(B crond $B%G!<%b%s$r40A4$K30$7$F$7(B
$B$^$C$F$b$+$^$$$^$;$s!#(B

4.2 update / bdflush $B%G!<%b%s(B

Linux $B$,FCDj$N%?%$%_%s%0$G=hM}$9$k%*!<%W%s%U%!%$%k%P%C%U%!$O$+$J$j$N?t$K(B
$BC#$7$^$9!#$9$J$o$A!"%7%9%F%`$O%U%!%$%k$K2C$($i$l$?JQ99$r%O!<%I%G%#%9%/$K(B
$B5-O?$5$l$?$3$H$r6KNOB.$d$+$K3NG'$7$J$1$l$P$J$i$J$$$N$G$9!#$5$b$J$1$l$P!"(B
$B%7%9%F%`$,%/%i%C%7%e$7$?:]$K$O!"JQ99FbMF$,<:$o$l$F$7$^$&$N$G$9!#(B

$B$3$N;E;v$rA0$rL>>h$C$F$$$^$9!#$7$?$,$C$F5/F0$9$k:]$K$O$3$N$&$A$N$I(B
$B$A$i$+$NL>A0$r8F$s$G$b$+$^$$$^$;$s(B)$B=i4|@_Dj$G$O!"(Bflush $B$r8^IC$4$H$K!"(B
sync $B$r;0==IC$4$H$K8F$S=P$7$9$k$h$&$K$J$C$F$$$^$9!#(B

$B8f;HMQCf$N%O!<%I%G%#%9%/>e$N%U%!!<%`%&%'%"l9g$3(B
$B$N=i4|@_Dj$G$O%O!<%I%G%#%9%/$K%"%/%;%9$7$CJ|$7$K$J$j$^$9!#(B($B%O!<%I%G%#%9(B
$B%/$K$h$C$F$O!"A4$/JQ99$,$J$/$F$b%-%c%C%7%e%i%`$r%U%i%C%7%e$9$k$h$&$G$9(B)

Linux $B$,$7$g$C$A$e$&!VMn$A$k!W$H$$$&$h$&$J$3$H$O$b$&$J$/$J$C$F$$$k$N$G!"(B
$BCxe5-$NN>@_DjCM$r(B 3600$BIC$KJQ99$7$F$$$^$9!#$3$l$,LdBj$r0z$-5/$3$7$?(B
$BNc$O$J$/!"%O!<%I%G%#%9%/$X$N%"%/%;%9$bDj4|E*$KDd;_$9$k$h$&$K$J$j$^$7$?!#(B
($B$b$A$m$s:#%7%9%F%`$,Mn$A$?$i!"%U%!%$%k$,$+$J$j$?$/$5$s$d$i$l$F$7$^$&$G(B
$B$7$g$&$,(B)

RedHat 4.1 $B$N>l9g(B /etc/inittab $BCf$N(B update $B8F$S=P$7$rl9g(B
update $B$r8F$S=P$7$7$F$$$k$N$O(B

        /sbin/init.d/boot 
Slackware $B$N>l9g!"(B update $B$r8F$S=P$7$7$F$$$k$N$O(B /etc/rc.d/rd.S $B$G$9!#(B

$B>\$7$/$O(B update $B$N%^%K%e%"%k$r;2>H$7$F$/$@$5$$!#(B

4.3. syslogd $B%G!<%b%s(B

syslogd $B%G!<%b%s$O!"(B/var/log $B%G%#%l%/%H%j$K$"$k(B Linux $B$NMM!9$J%7%9%F%`%m(B
$B%0%U%!%$%k$r;J$C$F$$$^$9!#%7%9%F%`%a%C%;!<%8$,H/$;$i$l$kEY$K%m%0%U%!%$%k(B
$B$rF14|$5$;$k$H$$$&$N$,=i4|@_Dj$H$J$C$F$$$^$9!#(B

$B$3$N5!G=$rDd;_$5$;$k$K$O!"(B/etc/syslog.conf $B>e$K5-:\$5$l$F$$$k%U%!%$%kL>(B
$B$NA0$K%@%C%7%e(B "-" $B$r$D$1$/$o$($^$9!#0J2<$NNc$OCxLL$9$k$3$H$K$J$j$^$9!#(B

4.4. init $B%3%^%s%I(B

$B%V!<%H%"%C%WCf$K=i4|%W%m%;%9$d%G!<%b%s$r5/F0$9$k$?$a$K;HMQ$9$k$N$,(B init
$B%3%^%s%I$G$9!#$3$N%3%^%s%I$b!"3F%W%m%;%9$4$H$K(B sync $B$r8F$S=P$7$7$^$9!#(B

$B$3$NE@$rJQ99$9$k$?$a$K$O!"%=!<%9%3!<%I$+$i(B sync() $B8F$S=P$7$rA0$NItJ,$K(B sync $B8F$S=P$7$rIU$12C$($k$H$$$&J}K!$G2sHr$G$-$^$9!#(B

4.5 $B%9%o%C%W(B $B%Q!<%F%#%7%g%s(B

Linux $B$N%9%o%C%W%Q!<%F%#%7%g%s$O2>A[5-21$rMQ$$$FJ*M}E*%a%b%j6u4V$r9-$2$k(B
$B$?$a$N$b$N$G$9!#%9%o%C%W%Q!<%F%#%7%g%s$r;H$&$H$$$&$N$O!"%G%#%9%/%"%/%;%9(B
$B$N860x$N0l$D$H$J$j$^$9!#8f;H$$$N%i%C%W%H%C%W$,%i%`$r==J,AuHw$7$F$$$k>l9g!"(B
$B$"$k$$$O7Z$$%"%W%j%1!<%7%g%s(B(vi $B$N$h$&$J(B)$B$r;H$&>l9g$K$O!"%9%o%C%W$r!V@Z!W(B
$B$K$9$k$3$H$r9MN8$7$?$/$J$k$G$7$g$&!#(B

$B%9%o%C%W$r!V@Z!W$K$G$-$k$+$I$&$+$O$b$A$m$s!V2?$r$7$h$&$H$9$k$+!We$N%a(B
$B%b%j$,$J$$8B$j%9%o%C%W$OI,?\$G$9!#(B

($BCp5-(B:$BCxl9g$G$b!"$3$l$r;H$o$J$$(B
$B$h$&$K$9$k$3$H$O$G$-$^$9!#(B /etc/rc.d/rc.sysinit $B$K$"$k(B swapon $B$r8F$S=P$9(B
$BItJ,$N@hF,$K(B "#" $B$rIU$1B-$;$P$$$$$N$G$9!#%9%o%C%W$r>o;~%*%U$K$O$7$F$7$^(B
$B$$$?$/$J$$;~$K$O!"%7%9%F%`N)$A>e$2;~$K%9%o%C%W;HMQ$N2DH]$rLd$$9g$o$;$k$h(B
$B$&$K$7$F$*$-$^$7$g$&!#(BRedHat 4.1 $B$N>l9g$K$O(B/etc/rc.d/rc.sysinit$B!"(BSuse
4.4.1 $B$N>l9g$K$O(B /sbin/init.d/boot $B$r0J2<$N$h$&$K5-=R$7$^$9!#(B(Slackware
$B$N>l9g$K$O!"(B /etc/rc.d/rc.S $B$G$9(B)

       echo "Should the system use swap?"
       echo "  0: No."
       echo "  1: Yes."
       /bin/echo "Your choice: \c"
       read SWAPCHOICE

       case "$SWAPCHOICE" in
           0)
               # Do nothing.
               echo "(Swap partitions disabled)"
               ;;
           *)
               # Start up swapping.
               echo "Activating swap partitions"
               swapon -a
       esac

$B$3$&$7$F$*$1$P!"8rN.EE8;$r;HMQ$7$F$$$k$H$-$K$O%9%o%C%W$rMQ$$!"EECS$r;HMQ(B
$B$7$F$$$k$H$-$K$O%9%o%C%W$rMQ$$$J$$$H$$$C$?$3$H$,2DG=$H$J$j$^$9!#(B

4.6. apace httpd webserver $B%G!<%b%s(B

$BCxe$GN)$A>e$2$F$$$k$N$O$=$N$?$a$J$N(B
$B$G$9!#=q<0$r;n83$7$?$jJG$r;~!98!::$7$?$j$9$k$@$1$N?M$K$H$C$FI8=`@_Dj$O$$(B
$B$5$5$+2a$.$?$k$b$N$G$7$g$&!#(B

httpd.conf $B$K$"$k(B MinSpareServers$B!"(B StartServers $B$NCM$r(B 1 $B$KJQ99$7$F$/$@(B
$B$5$$!#%m!<%+%k$N;n83%5%$%H$K$O$3$l$G==J,$G$7$g$&!#(B

Web $B%5!<%P!<$N%m%0$r\$7$/$OEv3:J8=q$r8fFI$_2<$5$$!#(B

4.7. $B99$J$k:GE,2=$rL\;X$7$F(B

Linux $B%7%9%F%`$,$^$@%O!<%I%G%#%9%/$rIQHK$K?($j$K9T$-$9$.$k$h$&$K;W$($k;~(B
$B$K$O!"(Bps ax $B%3%^%s%I$r;H$C$F0lBN2?$,5/$3$C$F$$$k$N$+$rD4$Y$k$H$$$&l9g$K$h$C$F$O!"3F%W%m%;%9$N%3%^%s%I%i%$%s0z?t$bI=<($5$l$^$9!#(B

($BLuCm(B:$BI=<($,2hLL$N1&C<$G@Z$l$F$7$^$&$H$-$K$O!"(B ps axwww $B$H$7$^$9(B)

$B.8B$N%$%s%9%H!<%k!W$N%@%$%(%C%H$OIT==J,$J$3$H$,B?$$!#%i%C%W%H%C%W%f!<(B
$B%6!<$,30$GMxMQ$9$k$K$OITI,MW$J$b$N$,$^$@$?$/$5$s4^$^$l$F$$$^$9!#l9g$K$O!"0u:~5!G=$bI,MW$J$$$N$,DLNc$G$9!#(B($B0u:~5!$J$I$H$O6bNX:]@\B3(B
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$B>CHqEENO4IM}$N2~A1!"(BPCMCIA $B%5%]!<%H$N1_3j2=!#%f!<%6!<$,I,MW$K1~$8$F%$%s(B
$B%9%H!<%k$G$-$k$h$&$J(B APM BIOS $BBP1~$N9=C[:Q$_%+!<%M%k$*$h$SBeBX(BPCMCIA$BMQ%I(B
$B%i%$%P$NG[I[!#%3%s%Q%$%k:Q$_(B APMD $B%Q%C%1!<%8$NG[I[!#(B

$B%M%C%H%o!<%/@_Dj$rF0E*$KJQ99$9$k5!G=$NIU2C(B: $B%i%C%W%H%C%W$G(B Linux $B$rMxMQ(B
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$B%o!<%/(B ID $B$rIQHK$KJQ99$7$J$1$l$P$J$i$J$$$3$H$,B?$$$N$G$9!#BgDq$NG[I[$N>l(B
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$B8f-Mh$NK\(BHOWTO $B$K$O8fR2p$9$k9`$r@_$1$5$;$FD:$-$^$9!#(B

5.2. $BpJs$NBgItJ,$O(B C't Magazine fuer Computertechinik$B;o(B
( Heise Verlag Hannover, Germany $B4)9T(B)10/96$B9f!"(B204$B%Z!<%80J2<$K(B Michael
Reiter$B;a$,4s9F$7$?!VEENO@aLs!W$H$$$&5-;v$r$b$H$K$7$?$b$N$G$9!#F1;o$N5v2D(B
$B$OoG[I[>l=j$G$"$k(Bhttp://sunsite.unc.edu/mdw/linux.html
$B$d$"$^$?$N%_%i!<%5%$%H$K$"$k$+$b$7$l$^$;$s!#$^$?!"Cx$K$O%i%C%W%H%C%WMQ$NEENO(B
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