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Date: Sun, 26 Mar 2000 01:42:11 +0900
From: Yu Ooasa <you@iij.ad.jp>
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Subject: [FreeBSD-users-jp 50799] Re: not ufs (Re: fixit disklabel)
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$B$*$*$"$5$G$9!"?"ED$5$s1n4]$5$s$"$j$,$H$&$4$6$$$^$9(B

>  $B$D$$:G6a!"(BMBR, fdisk, disklabel $B$r$U$C$H$P$7$^$7$?!#$G$b%U%!%$(B
>$B%k%7%9%F%`$OBgA{$.$7$^$7$?$,7k6IB;32L5$7$G$7$?!#(B

$B$o$?$7$b:#2s$O$J$s$H$+$J$j$=$&$J5$$,(B($B>!<j$K(B)$B$7$F$$$k$N$G$G$-$k(B
$B$J$i$P$J$s$H$+$7$?$$$H$3$m$G$9!#(B

>> $BK\<A$O(B
>> |Not ufs
>> |Not ufs
>> |No /boot/loader
>> |
>> |>> FreeBSD/i386 BOOT
>> |Default: 0:wd(0,a)/kernel
>> |boot:
>> |Not ufs
>> |No /kernel
>> $B$NItJ,$K$"$k$h$&$J5$$,$9$k$N$G$9$,!"(Bufs$B$8$c$J$1$l$P:#$3$N(Bslice$B$O(B
>> $B$J$s$J$N$G$7$g$&$+!#8=:_!"(B
(snip
>$B$H$$$&%A%'%C%/$rFI$s$@(B label $B$KBP$7$F9T$J$C$F$$$^$9$,!"$3$l$O@Z(B
>$B$jH4$1$F$$$k$h$&$G$9$M!#(Bmagic number $B$O(B 2$B2U=j$H$b$A$c$s$H;D$C$F(B
>$B$$$k$_$?$$$G$9$M!#(B

$B$($(!"$=$N$h$&$K;W$$$^$9(B

>$B%Q!<%F%#%7%g%s>pJs$r?.$8$F(B
(snip
>MAGIC $B$r8+$F$_$k$H0c$&$N$G(B
>        if (fs.fs_magic != FS_MAGIC) {
>            printf("Not ufs\n");
>$B$H=P$F$$$k!D!D!"$H$$$&$N$,N.$l$_$?$$$G$9!#?.$8$?%Q!<%F%#%7%g%s>p(B
>$BJs$,IT@5$@$C$?$N$G!"4V0c$C$?$H$3$m$rFI$s$G$$$k$N$G$7$g$&!#8D?ME*(B
>$B$K$O$3$&$$$&>uBV$N%V%m%C%/(B#1 $B$r8+$F$_$?$$5$$,$7$^$9(B :-)
>dd if=/dev/rwd0s2 bs=512 count=1 skip=1 of=label
>$B$H$+$7$F$$$?$@$1$k$H!"$H$F$b$&$l$7$$$G$9(B :):)

$B%Q!<%F%#%7%g%s>pJs$,2u$l$F$$$k(B?? $B=PNO$OJLJX$G(BDM$B$5$;$F$$$?$@$-$^$9(B_o_

>#define DISKMAGIC       ((u_int32_t)0x82564557) /* The disk magic number */
>$B$,(B "WEV<82>" $B$H$$$&7A$G8=$l$k%V%m%C%/$G$9(B
>(0x82 = <82>, 0x56 = V, 0x45 = E, 0x57 = W $B$,(B i386 $B$O(B little
>endian $B$J$N$G5U=g$GJB$V(B)$B!#(B

$B>e$N(Bdd$B$G=PNO$5$l$?(Blabel$B$r8+$k$H$?$7$+@hF,$+$i$K(B0x57 0x45 0x56 0x82
$B$HF~$C$F$$$^$9(B

>> $B$N$&$A!"(Bwd0s2f$B$@$1$,(Bmount$B2DG=$J>uBV$G$"$H$O(B
>> # mount -r /dev/wd0s2g /mnt
>> mount: /dev/wd0s2g on /mnt: incorrect super block
>> $B$H8@$o$l$^$9!#(B
>  $B$3$l$O$?$V$s!"(Bwd0s2f $B$N>pJs$@$1@5$7$/$F!"$"$H$O4V0c$C$F$$$k$s(B
>$B$8$c$J$$$+$H;W$&$s$G$9$,!"(Bdisklabel $B$O$^$@=q$-La$7$F$J$$$s$G$9$h(B
>$B$M!)(B

$B$=$N8e(Bsysinstall$B$N(BLabel$B$G=q$-La$7$^$7$?(B($B$D$b$j(B)$B!#8=:_$O@5$7$$(B
disklabel$B$,=q$-La$5$l$F$$$k$H;W$$$^$9(B($B>/$J$/$H$b(Bdisklabel wd0$B$N=PNO(B
$B$K@5>o2TF/$7$F$$$?$H$-$N$b$N$H$N0c$$$O8+$i$l$^$;$s(B)$B!#(B

>> >>  - $BAGKQ$J<ALd$J$N$G$9$,!"@5$7$$(Bdisklabel($BB>$N(Bwindows$B5!$KJ]B8$7$F$"$k(B)
>> >>    $B$r(Bfixit$B$G=q$-La$=$&$H$9$k>l9g!"$I$&$d$C$F;}$C$F$$$1$P$h$$$G$7$g$&$+(B
>  $BJL%^%7%s$,@8$-$F$$$k$N$G$"$l$P!"(Bfixit $B%U%m%C%T!<$r(B mount $B$7$F!"(B
>cp $B$9$k$N$,$$$$$s$8$c$J$$$G$7$g$&$+!#(Bfixit $B%U%m%C%T!<$O6u$-MFNL(B
>0 $B$H$$$&$o$1$G$O$"$j$^$;$s$N$G!#(B

$B$=$l$,$G$-$l$P$h$+$C$?$N$G$9$,!";DG0$J$,$i<+Bp$K$"$kJL%^%7%s$O(Bwindows
$B$7$+F~$C$F$$$J$$$N$G!"$O$F$I$&$9$l$P$$$$$+$J$HG:$s$G$7$^$$$^$7$?(B

>2000-03-25($BEZ(B) 20:36:52.$B:"!"(Bueta@pixy.issp.u-tokyo.ac.jp$B$5$s$O=q$-$^$7$?!#(B
>> FreeBSD $B$N(B fdisk $B$J$I$r;H$&$H!"(Bpartition(slice) $B$N(B ID $B$r8+$k$3$H$,=PMh(B
>> $B$^$9!#$=$l$,!"$U$C$H$s$G$$$k$h$&$J5$$,$7$^$9!#(B
>> $B!V$b$&!"$U$C$H$s$G$b9=$o$J$$!W(Bor$B!V(Bskill $B$K$O!"<+?.$,$"$j$^$9!W$H$$$&$3(B
>> $B$H$J$i!"(Bfixit.flp $B$"$?$j$r;H$C$?>e$G!"(Bfdisk $B$r<B9T$7$F!"(BID $B$rJQ99$9$l(B
>> $B$P!"$J$s$H$+$J$k$H;W$$$^$9!#(B
>  $B$?$V$s!"(B386BSD $B$J%9%i%$%9$OG'<1$5$l$F$$$k$N$@$H;W$$$^$9!D!D!#(B

$B8f0U!#(Bsysid$B$O(Bfdisk$B$N=PNO$r8+$k$+$.$jLdBj$"$j$^$;$s(B
The data for partition 1 is:
sysid 6,(Primary 'big' DOS (> 32MB))
    start 63, size 1012032 (494 Meg), flag 0
The data for partition 2 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
    start 1012095, size 18731790 (9146 Meg), flag 80 (active)

>($B0J2<M>CL$NM>CL(B)
>> #$B$H$$$&;d$O!":G6a(B EXABYTE $B$r$U$C$H$P$7$F!":$$C$?>uBV$K4Y$C$F$k$s$G$9(B
>> #$B$,(B ;-)
># Life with UNIX $B$K$h$k$H(B
>  vi $B$,%^%k%A%&%#%s%I%&5!G=$r;}$C$F$$$J$$$N$O!"(BBill Joy $B$N;H$C$F(B
>$B$$$?%F!<%W%I%i%$%V$,2u$l$F!"$=$N8e$b:n6H$rB3$1$F$$$?$i%G%#%9%/$b(B
>$BHt$s$G$7$^$C$?$+$i$@$=$&$G$9$h(B :-)

$B$=$N$h$&$G$9$M!#$3$l$@$1Ia5Z$9$k$H$o$+$C$F$$$?$i(Bvi$B$r:n$i$J$+$C$?(B
$B$@$m$&$H$$$C$?OC$b$"$C$?$h$&$J(B:)

--
Yu Ooasa  E-mail: you@iij.ad.jp
