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From: "Hirokazu WATANABE" <gwna@geocities.co.jp>
To: <FreeBSD-users-jp@jp.freebsd.org>
References: <20010523.115342.125115484.morishita@skywing.org><20010523160213K.m_chiba@f7.dion.ne.jp><3B0B8FCC.AF9CBF93@honsha.meidensha.co.jp> <20010523230306L.m_chiba@f7.dion.ne.jp>
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Subject: [FreeBSD-users-jp 61753] Re: FreeBSD4.2-R(98)
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$BEOJU$G$9!#(B

$B$3$NDxEY$N$3$H$O3NG'$7$F$+$iH/8@$5$l$?$[$&$,$h$m$7$$$+$H;W$$$^$9!#(B
$B!t?M$N$3$H$O8@$($J$$$,!D!#(B

$BAw?.<T(B : "Masashi CHIBA" <m_chiba@f7.dion.ne.jp>
$BAw?.F|;~(B : 2001$BG/(B5$B7n(B23$BF|(B 23:03

>>> 4.1R $B$N;~$OKM$b(B /dev/wd* $B$H(B /etc/fstab $B$K5-=R$7$F$$$^$7$?!#8e$K!"(Bad $B$K(B
>>> $B0\9T$7$^$7$?$,!"FC$K$5$7$?$kJQ2=$O$"$j$^$;$s$G$7$?!#(B
>> 
>> $B$3$l$C$F0UL#$,2r$i$J$$$s$G$9$1$I!#!#!#(B
>> /etc/fstab $B$N5-=R$,(B /dev/wd* $B$N$^$^$G$b(B ad* $B$H$7$F%"%/%;%9$G$-$?$C$F(B
>> $B$3$H!)(B
>> # $B$=$s$JGO</$J!#!#!#(B

> $B$N(B wd $B$r(B /dev/ad4s3a, /dev/ad4s3b, ... $B$H=q$-49$($F!"I,MW$H$5$l$k%G%P(B
> $B%$%9%U%!%$%k$r:n@.$7$?8e!"(Breboot $B$7$?$H$$$&;v$G$9!#%+!<%M%k$=$NB>$O$$$C(B
> $B$5$$JQ99$7$F$$$^$;$s!#$G!"$a$G$?$/:F5/F0$7!"$=$N8eFC$KJQ2=$,46$8$i$l$J(B
> $B$+$C$?$N$G!"!V$I$A$i$G$bNI$+$C$?$N$+$J!&!&!&!#!W$H;W$C$?$o$1$G$9!#$b$A(B
> $B$m$s!"<+J,$N7P83$N$_$NH=CG$J$N$G!"5R4QE*;qNA$K7g$F$$$k$N$G$9$,!#(B

$B5R4QE*;qNA$H$$$&$H!"%+!<%M%k%=!<%9$H$$$&$3$H$K$J$k$G$7$g$&$+!#(B
dev/ata/ata-disk.c:ad_attach()
    dev = disk_create(adp->lun, &adp->disk, 0, &ad_cdevsw, &addisk_cdevsw);
    dev->si_drv1 = adp;
    dev->si_iosize_max = 256 * DEV_BSIZE;
    adp->dev1 = dev;

    dev = disk_create(adp->lun, &adp->disk, 0, &fakewd_cdevsw,
        &fakewddisk_cdevsw);
    dev->si_drv1 = adp;
    dev->si_iosize_max = 256 * DEV_BSIZE;
    adp->dev2 = dev;

$B$3$3$G!"(Bad? $B$H(B wd? $B$NN>J}$KBP$7$F%(%s%H%j$r:n$C$F$$$^$9$N$G!"$I$A$i$NL>A0(B
($B@53N$K$O$=$l$>$l$NL>A0$GCN$i$l$F$$$k(Bmajor$BHV9f(B)$B$G$b%"%/%;%92DG=$G$9!#(B
see sys/conf/major.

% uname -a
FreeBSD tithonus.private 4.3-RELEASE FreeBSD 4.3-RELEASE #1: Tue May 22 22:35:47 JST 2001     watanabe@tithonus.private:/pub/src/4.3R/sys/compile/TITHONUS  i386
% dmasg
...
Creating DISK ad4
Creating DISK wd4
ad4: <NEC-D5PA-305008/TWDPA60A> ATA-5 disk at ata3-master
ad4: 8063MB (16514064 sectors), 16383 cyls, 16 heads, 63 S/T, 512 B/S
ad4: 16 secs/int, 1 depth queue, UDMA33
ad4: piomode=4 dmamode=2 udmamode=5 cblid=1
ad4: 8063MB <NEC-D5PA-305008> [16383/16/63] at ata0-master UDMA33
ata3-master: success setting UDMA2 mode on ARTOP chip
...
% ls -l /dev/r[aw]d4
crw-r-----  2 root  operator  116, 0x00010022 May 22 14:35 /dev/rad4
crw-r-----  2 root  operator    3, 0x00010022 May 23 23:19 /dev/rwd4
% dd if=/dev/rad4 of=/dev/null bs=1m count=100
100+0 records in
100+0 records out
104857600 bytes transferred in 9.434085 secs (11114761 bytes/sec)
% dd if=/dev/rwd4 of=/dev/null bs=1m count=100
100+0 records in
100+0 records out
104857600 bytes transferred in 9.433003 secs (11116036 bytes/sec)

$B$3$N$"$?$j$N%=!<%9$O(B 4.0R $B$+$iJQ$o$C$F$$$^$;$s$N$G!"(B4.1R $B$G$bF1MM$NF0:n(B
$B$K$J$k$O$:$G$9!#$?$@$7!"%$%s%9%H!<%i$OB?>/;v>p$,0[$J$k$h$&$G$9!#(B


> $B3N$+$K$*$C$7$c$kDL$j$G$9!#KM$O!"(Bwd $B$H(B ad $B$N(B $B0c$$5Z$SF10l@-$K$D$$$F9M$((B
> $B$k>e$G$O;qNA$K$J$k$N$G$O$J$$$+$H;W$$!">e5-$N0lJ8$r=q$$$?$^$G$G$9!#(B

ata $B$N>l9g!"8=;~E@$G$OA4$/F1$8$H9M$($F;Y>c$"$j$^$;$s!#(B

$B!t(BCDROM device partition $B$O(B "a" $B$GLdBj$J$$$H;W$&!D9%$_$NLdBj$G$9$,!#(B
---
$BEOJU9@OB(B<gwna@geocities.co.jp>,
       <wnabe@par.odn.ne.jp>,
       <wnabe@crux.ocn.ne.jp>$B!wI\Cf(B

