Date: Tue, 19 Apr 2016 15:36:42 +0900 From: Naomichi Nonaka <nao@enuenu.org> To: freebsd-users-jp@freebsd.org Subject: [FreeBSD-users-jp 95785] Re: GPT and EFI Message-ID: <5715D1FA.30507@enuenu.org> In-Reply-To: <ydlzisqhq5m.fsf@indra.ism.ac.jp> References: <ydlzisqhq5m.fsf@indra.ism.ac.jp>
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$BLnCf$G$9!#(B
On 2016/04/19 0:50, $B4];3D>>;(B wrote:
> $BE}7W?tM}8&5f=j$N4];3$G$9!#(B
>
> $BH/C<$H$J$C$?LdBj$O4{$K2r7h$7$?$H;W$$$^$9$,!"(BSubject$B$rJQ$($F(B GPT $B$H(B EFI$B$N(B
> $B4X78$K$D$$$F9M$($F$_$?$$$H;W$$$^$9!#;d$,5$$K$J$C$?$N$OLnCf$5$s$N(B
>
>> GPT$B%9%-!<%`$O85!9(B(U)EFI$B5,3J$N0lIt$H$7$F:n@.$5$l$?$N$G$9$,!"8=>u$G$O(B
>> Legasy BIOS$B$H(BGPT$B$NAH9g$;$b(B($B$NJ}$,!)(B)$BB?MQ$5$l$F$*$j!"(B
>
> $B$H$$$&ItJ,$G$9!#$=$N$"$?$j$NNr;K$OCN$i$J$$$N$G!"$^$:$O2?$+;2>H$G$-$kJ88%(B
> $B$,$"$l$P$465<(4j$$$?$$$H;W$$$^$9!#(B
Wikipedia$B$N(B
https://ja.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface
$B$,$h$/E;$^$C$F$^$9!#(B
UEFI$B$N5,3J=q<+BN$O(B
http://www.uefi.org/sites/default/files/resources/UEFI%20Spec%202_6.pdf
$B$GF~<j2DG=$G$9!#(B
> $B$=$l$O$H$b$+$/!"(BGPT $B$r>/$7CN$C$F!"(B UEFI $B$N$3$H$OKX$ICN$i$J$$;d$+$i8+$k$H!"(B
> $BNr;K$O$I$&$G$"$l!"(BGPT$B$O$3$l$^$G9-$/Ia5Z$7$F$$$?!V(B(Microsoft slice)+(BSD
> label)$B!W$NJ}<0(B($B:#$G$O(BMBR$B%9%-!<%`$r8F$V$h$&$K$J$C$?$,(B)$B$,$O$i$s$G$$$?LdBj(B
> $B$r2r7h$7$F$*$j!"Nc$((B UEFI$B5,3J$,L5$/$F$b!"(BUEFI$B%b!<%I$,$J$/(BBIOS boot $B$7$+(B
> $B$G$-$J$$%^%7%s$G$"$C$F$b!"(BMBR$B$O<N$F$F(BGPT$B$K0\9T$9$Y$-!"$H;W$($k$N$G$9!#$G(B
> $B$9$+$i!"(B
>
>> $B8=>u$G$O(BLegasy BIOS$B$H(BGPT$B$NAH9g$;$b(B($B$NJ}$,!)(B)$BB?MQ$5$l$F$*$j!"(B
>
> $B$O5/$k$Y$/$7$F5/$C$F$$$k8=>]$G$"$C$F!"$=$3$K4:$($F(B UEFI boot $B%b!<%I$NOC(B
> $B$r;}$A=P$9I,MW$b$J$$$7!"$^$?(B GPT$B$N5,3J$O(BLegacy BIOS, UEFI$B$N5/F0%b!<%I$H(B
> $B$OFHN)$N5,3J$G$"$k$Y$-$@$H;W$&$N$G$9!#(B
>
> $B3'MM$N$40U8+$r;G$$$?$$!#(B
$B5,3J>e$O(BUEFI$B%V!<%H$b(BUEFI$B$N;EMM$N0l$D$G$"$j!"(BLegacy BIOS$B$G5/F0$9$k$3$H$r(B
$BH]Dj$7$F$k$o$1$G$O$J$$$G$9!#(B
$B;d$N=q$-J}$,$"$$$^$$$@$C$?$N$G$9$,!"(BLegacy BIOS$B!\(BGPT$B$O5,3J0cH?$G!"D>$A$K(B
$BGQ;_$9$Y$-$H$O9M$($F$$$^$;$s$7!"$=$&=q$$$F$b$$$J$$$D$b$j$G$9!#(B
$B$?$@!"8D?ME*$K$O(BUEFI$B%V!<%H$K0\9T$9$Y$-$@$H9M$($F$$$k$N$G!"$=$N7k2LA02s$N(B
$B$h$&$JI=8=$H$J$j$^$7$?!#8m2r$5$;$?$h$&$G?=$7Lu$"$j$^$;$s!#(B
$BJL$N5-;v$G4];3MM$b=q$+$l$F$$$^$9$,!"(BLegacy BIOS$B!\(BGPT$B4D6-$G!V0l$D$N(BHD$B>e$K(B
$BJ#?t$N(BOS(Windows,Linux,FreeBSD$BEy(B)$B$N0[$J$k%P!<%8%g%s$r%$%s%9%H!<%k$7!"(B
$B%V!<%H;~$K%a%K%e!<7A<0$G%V!<%H(BOS$B$rA*Br$7$F5/F0$9$k!W$3$H$O(BGrub2$B$G4{$K(B
$B<B8=2DG=$G$9!#$b$A$m$s(BGrub2$B$N%$%s%9%H!<%k$d@_Dj$,MF0W$@$H$O;W$C$F$$$^(B
$B$;$s$,!"8D?ME*$K$O==J,Lr$KN)$C$F$^$9!#(B
$BLnCf(B
> $B$J$*!"0l1~!V(B(Microsoft slice)+(BSDlabel)$B$NJ}<0$,$O$i$s$G$$$?LdBj!W$NCf$G(B
> $BFC$K=EBg$J$b$N$r$3$3$K=q$$$F$*$/$H!"(B
>
> 1. Microsoft slice $B$N%"%I%l%9;XDj$O(B 32$B%S%C%H$G$"$C$F!"(B2TB$B$r1[$($k%9%H%l!<(B
> $B%8$G$O!"%"%I%l%9;XDj$,IT2DG=$K$J$k!#(B(/usr/include/sys/diskmbr.h $B0?$$$O(B
> /usr/src/sys/boot/i386/boot0/boot0.S $B;2>H(B)
>
> 2. stage 1 boot code $B$NBg$-$5$,(B 15 sector(7680$B%P%$%H(B)$B$K@)8B$5$l$F$$$F!"(B
> $B<+M3$,8z$+$J$$!#(B
>
> 3. (2$B$H<B<AF1$80UL#$@$,(B)boot manager $B$rFCDj$N(BOS$B%Q!<%F%#%7%g%s$NCf$KKd$a(B
> $B9~$^$6$k$rF@$:!"$=$N(B OS$B%Q!<%F%#%7%g%s$r:o=|$9$k$H!"B>$N(BOS$B%Q!<%F%#%7%g(B
> $B%s$^$G5/F0:$Fq$K$J$k!#(B
>
> --------
> $B4];3D>>;!wE}7W?tM}8&5f=j(B
>
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