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Date: Wed, 9 Dec 1998 09:41:34 +0900 (JST)
Message-Id: <199812090041.JAA01233@aphrodite.hide.qnes.nec.co.jp>
To: FreeBSD-users-jp@jp.freebsd.org
In-Reply-To: Your message of "Wed, 9 Dec 1998 03:26:20 JST".
	<19981209032620R.j5306050@educ.cs.gunma-u.ac.jp>
From: ohishi@hf.rim.or.jp (Isao Ohishi)
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Subject: [FreeBSD-users-jp 36259] Re: What is raw device?
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$BBg@P$G$9!#(B

JST$B;~4V(B1998$BG/(B12$B7n(B09$BF|(B($B?e(B) 03$B;~(B26$BJ,(B20$BIC:"$K=q$+$l$?(B
j5306050@educ.cs.gunma-u.ac.jp$B$5$s$+$iAw$i$l$F$-$?(B
$B!V(B[FreeBSD-users-jp 36252] What is raw device?$B!W$K$D$$$F(B...

>>  % tar cf /dev/fd0c .
>>$B$H$9$k$H!"%U%m%C%T!<$K(Btar$B%U%!%$%k$,=q$-$3$^$l$^$9$,!"(B
>>$B$3$l$O!V2?%U%)!<%^%C%H!W$H$$$&$s$G$7$g$&$+!#(B
>>$B!V(Btar$B%U%)!<%^%C%H!W$G$$$$$s$G$7$g$&$+!)(B

$B2?%U%)!<%^%C%H$H$$$&$+$OCN$j$^$;$s$,!";d$,C/$+$K$3$NMM$JJ}K!$G(BFD$B$r(B
$BEO$9$H$9$k$H!"(B1.44MB$B$N(BFD$B$K(Btar$B7A<0$G=q$$$?Ey$H@bL@$9$k$H;W$$$^$9!#(B

>>$B$^$?!"$3$l$C$F$$$o$f$k!V(Braw$B%G%P%$%97PM3$G=q$-9~$s$G$$$k!W(B
>>$B$H8@$C$F$$$$$N$G$7$g$&$+!#(B

$B0c$$$^$9!#(Braw$B%G%P%$%9$G=q$-9~$`>l9g$O!"(Brfd0c$BEy$r;HMQ$7$^$9!#(B
$B:#2s$O%V%m%C%/7?%G%P%$%9$G$"$k(Bfd0c$B$r7PM3$7$F=q$-9~$s$G$$$^$9$,!"(B
$B$3$l$O;_$a$?J}$,NI$$$G$9!#%-%c%i%/%?7?%G%P%$%9$G$"$k(Brfd0c$B$NJ}$r(B
$B;H$$$^$7$g$&!#(B

$B!t(B $B%V%m%C%/7?%G%P%$%9(B/$B%-%c%i%/%?7?%G%P%$%9$N0c$$Ey$K4X$7$F$O!"(BUNIX
$B!t(B $B7O$N=q@R$K?'!9$H>R2p$5$l$F$$$k$H;W$&$N$G!"$=$A$i$r;2>H$7$F2<$5$$!#(B
$B!t(B $B$H$j$"$($:%9%H%l!<%87O$N>l9g$O!"%U%!%$%k%7%9%F%`$H$7$F;H$&>l9g$O(B
$B!t(B $B%V%m%C%/7?%G%P%$%9$r;H$$!"FCDj$N%U%!%$%kEy$r0U<1$7$J$$AuCV$=$N$b$N(B
$B!t(B $B$H$7$F;H$&>l9g$O%-%c%i%/%?7?$r;H$&$H$$$&46$8$G3P$($F$*$1$P$$$$$H(B
$B!t(B $B;W$$$^$9!#(B

>>$B$H$&$$$&$N$O!"$=$N%U%m%C%T!<$N%U%)!<%^%C%H$,(Bufs$B$G(B
>>$B$"$m$&$H!"(BDOS$B%U%)!<%^%C%H$G$"$m$&$H!"A4$/4X78$J$/(B
>>$B=q$-9~$^$l$k$N$G!"(B
>>  $B!V$3$l$,$$$o$f$k(Braw device$B$+$J$!!W(B
>>$B$H;W$C$?$o$1$G$9!#(B

$B$3$l$bA0=R$NDL$j$A$,$$$^$9(B(^^;;$B!#(Btar$B$G(B/dev/fd0c$B$K=q$-9~$s$@D>8e$K(B
FD$B$r<h$j=P$7$?$j$9$k$H!"2u$l$k2DG=@-$,$"$j$^$9!#(B


>>$B$7$+$7(B
>>  % tar cf /dev/rfd0c .
>>$B$H$9$k$H!"(B
>>  tar (child): can't write to /dev/rfd0 : Invalid argument
>>$B$HE\$i$l$k$N$G!"$d$C$Q$j0c$&$N$G$7$g$&$+!#(B
>># raw device$B$N$D$b$j$G!V(Br$B!W(Bfd0c$B$H$7$^$7$?!#(B

$B%G%P%$%9%U%!%$%k$,B8:_$7$J$$$H$+!"%Q!<%_%7%g%s$,$*$+$7$$$J$I$H$$$&(B
$B;v$O$J$$$G$9$+!)(B


>>$B$"$H!"(B
>>  % dd if=boot.flp of=/dev/fd0c
>>$B$H$$$&$N$O!V(Braw device$B7PM3!W$GFI$_=q$-$7$F$$$k$N$G$7$g$&$+!#(B

$B$3$l$b0c$$$^$9!#(Brfd0c$B$J$i(B raw device$B7PM3$G$9$1$I(B....$B!#A0=R$N(Btar$B$N;~(B
$B$HF1MM$K$3$N%1!<%9$G$b(Bof$B$K$O(B/dev/rfd0c$B$r;XDj$9$Y$-$G$9!#(B


>>$B$=$l$+$i!">e$N$h$&$K$7$F:n$C$?(Btar$B%U%!%$%k$O!"(B
>>  % tar tf /dev/fd0c
>>$B0J30$K$b!"(B
>>  % dd if=/dev/fd0c of=hoge.tar
>>$B$d(B
>>  % cat /dev/fd0c > hoge.tar
>>$B$,2DG=$G$9$,(B(hoge.tar$B$N%5%$%:$OBg$-$/$J$j$^$9$,(B)$B!"(B
>>dd$B$O$H$b$+$/!"(Bcat$B$r;H$&$N$O$^$:$$$3$H$J$N$G$7$g$&$+!#(B
>># $B!a!V(Bboot.flp$B$r(Bcat$B$G%3%T!<$7$F$b$$$$$b$N$+!W(B

$BJL$K$^$:$$$H$$$&;v$O$J$$$H;W$$$^$9!#;d$N>l9g$O$3$&$$$&>l9g$O(Bdd$B$r;HMQ(B
$B$7$^$9(B(dd$B$J$i(Bbs$B$r;XDj$G$-$k$H$$$&E@$bM}M3$N0l$D$G$9(B)$B!#(B

-- 
  -----------------------------------------------------------  - ...
 /   Isao OHISHI                     Fukuoka City, Japan    / - ...
/  E-mail: ohishi@hf.rim.or.jp, JCF02606@nifty.ne.jp       / - ...
-------------- With NetBSD/pc98 on PC9821La13 ------------- - ...
