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References: <199909221806.DAA19446@ns.iij.ad.jp>
From: Akio Morita <amorita@meadow.scphys.kyoto-u.ac.jp>
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Date: 23 Sep 1999 15:03:36 +0900
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 (Yu Ooasa's message of "Thu, 23 Sep 1999 03:06:19 +0900")
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Subject: [FreeBSD-users-jp 45918] Re: slice resize
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$B?9ED!w5~Bg$G$9(B

Yu Ooasa(you@ff.iij4u.or.jp)$B$5$s$O!"(B
Thu, 23 Sep 1999 03:06:19 +0900$B$K(B
$B!V(B[FreeBSD-users-jp 45910] slice resize$B!W$N(BMessage$B$G=q$-$^$7$?(B

$B!d(B
$B!d$*$*$"$5$H$$$$$^$9!#(B
$B!d(B
$B!d(B*** $B$d$j$?$$$3$H!"(Badvice $B$r$$$?$@$-$?$$$3$H(B
$B!d(B 1. $B2DG=$J$i$P(B wd0s3e $B$r5_$$$?$$(B
$B!d(B 2. slice $B%5%$%:$N@5$7$$JQ99<j=g(B($B$b$&<jCY$l$JJ70O5$I:$&$N$G8e3X$N0Y(B)
$B!d(B
$B!d(B2.2.8-RELEASE $B$K$F0J2<$N(B slice $B$G1?MQ$7$F$$$?$N$G$9$,!"(B/usr $B$,I/Gw(B
$B!d$7$F$-$?$?$a(B 3.3-RELEASE $B$rF~$l$k$D$$$G$K(B resize $B$r$7$h$&$H$7$^$7$?!#(B
$B!d(B
$B$3$NCJ3,$G!"I,MW$J$b$N$r(B Backup$B$9$k$N$,@5$7$$(B

$B!d(BPartition Status Type    Mbytes System Usage
$B!d(BC: 1             PRI DOS   1028 FAT16  11%
$B!d(B   2      A      Non-DOS    792         8%
$B!d(B   3      A      Non-DOS   7821        81%
$B!d(B
$B!d(Bwd0s2a /     32MB
$B!d(Bwd0s2b swap  128MB
$B!d(Bwd0s2e /var  30MB
$B!d(Bwd0s2f /usr  $B;D$j(B
$B!d(B
$B!d(Bwd0s3e /home $BA4NN0h(B
$B!d(B
$B!d(B# fdisk, disklabel $B>pJs$O%U%!%$%k$KJ]B8$7$F$*$$$?$N$G$9$,6b8K$NCf$N(B
$B!d(B# $B80$K$J$C$F$7$^$$$^$7$?(B:(
$B!d(B
$B;d$N>l9g!"(B"$B;f$K=q$-<h$k(B<fdisk$B$N>pJs$H(B disklabel$B$N=g=x$HBg$-$5(B>"
$B!t$3$l$@$1$"$l$P!"(BBSD partition$B$NJ*M}E*$J0LCV$OFCDj$G$-$^$9(B
& "MS-DOS$B$N(B Floppy$B$K5-O?$9$k(B"$B$r9T$C$F$^$9(B

$B!d(Bwd0s3e $B$K(B /home $B$r:\$;$F$$$?$N$G!"$=$l0J30(B($B>e5-$N(B 1028MB $B$H(B 792MB)$B$r(B
$B!d(BFDISK $B$G2rJ|$7!":F3d$jEv$F$r9T$C$F$7$^$$$^$7$?(B($B2a5n7A(B)$B!#7k2L!"0J2<$N(B
$B!d$h$&$J>uBV$K$J$C$F$$$^$9!#(B
$B!d(B
$B!d(BPartition Status Type    Mbytes System Usage
$B!d(B   1      A      Non-DOS   1106        11%
$B!d(B   2      A      Non-DOS   8032        83%
$B!d(BC: 3             PRI DOS    502 FAT16   5%
$B!d(B
slice table$B$N99?7$,$&$^$/9T$C$F$J$$$h$&$K;W$($^$9(B
$B!tMFNL$,(B 7821 -> 8032 / slice 3 -> slice 2$B$X0\F0$7$F$k(B

$BJQ99A08e$G!"85(B slice 3$B$N(B geometry$B$,J];}$5$l$F$J$$2DG=@-$,$"$j$^$9(B
$B!t$"$j$,$A$JOC$H$7$F(B MS$B$J(B fdisk$B$r;H$C$F(B Non-MS$B$J(B slice$B$,2u$l$?$H$+(B

$B!d(B# fdisk
$B!d(B******* Working on device /dev/rwd0 *******
$B!d(Bparameters extracted from in-core disklabel are:
$B!d(Bcylinders=1027 heads=255 sectors/track=63 (16065 blks/cyl)
$B!d(B
$B!d(BFigures below won't work with BIOS for partitions not in cyl 1
$B!d(Bparameters to be used for BIOS calculations are:
$B!d(Bcylinders=1027 heads=255 sectors/track=63 (16065 blks/cyl)
$B!d(B
$B!d(BMedia sector size is 512
$B!d(BWarning: BIOS sector numbering starts with sector 1
$B!d(BInformation from DOS bootblock is:
$B!d(BThe data for partition 1 is:
$B!d(Bsysid 14,(Primary 'big' DOS (> 32MB, LBA))
$B!d(B    start 16450560, size 1028160 (502 Meg), flag 0
$B!d(B        beg: cyl 1023/ sector 63/ head 255;
$B!d(B        end: cyl 1023/ sector 63/ head 254
$B!d(BThe data for partition 2 is:
$B!d(Bsysid 165,(FreeBSD/NetBSD/386BSD)
$B!d(B    start 17478720, size 2265165 (1106 Meg), flag 0
$B!d(B        beg: cyl 1022/ sector 63/ head 255;
$B!d(B        end: cyl 1022/ sector 63/ head 254
$B!d(BThe data for partition 3 is:
$B!d(Bsysid 165,(FreeBSD/NetBSD/386BSD)
$B!d(B    start 63, size 16450497 (8032 Meg), flag 80 (active)
$B!d(B        beg: cyl 0/ sector 1/ head 1;
$B!d(B        end: cyl 1022/ sector 63/ head 254
$B!d(BThe data for partition 4 is:
$B!d(B<UNUSED>
$B!d(B
$B@h$[$I$NJQ998e$N!"(BSlice$B>pJs$@$H(B 8032MB$B$O(B slice 2$B$K8+$($k$N$G$9$,(B
fdisk$B$N=PNO$H0lCW$7$F$$$^$;$s(B -> $B2?$+$,$*$+$7$$(B
$B$=$l$K(B begin/end$B$N(B geometry$B>pJs$,$*$+$7$$(B
$B!t(B502MB/1106MB$B$N(B begin/end$B$,JQ$K8+$($k$N$G$9$,(B...
-> slice$B%F!<%V%k$,GK2u$5$l$F$k(B?
start,size$B$r?.MQ$9$k$J$i!"(Bslice 3$B$O(B disk$B$N@hF,$K$"$k$3$H$K$J$C$F$$$k$,(B
$B$3$l$O@5$7$$(B?

$B!dL@$i$+$K$*$+$7$$$G$9$,!"(Bwd0s3 $B$KBP$7$F$O0lEY$b(B newfs $B$r3]$1$F$$$J$$(B
$B!d$D$b$j$J$N$G!"2?$H$+$7$FFI$_=P$;$J$$$b$N$+$H;W$C$F$$$^$9!#(B
$B!d(B
slice table$B>e$G$N(B slice$BHV9f$dJ*M}E*0LCV$,F~$lBX$o$C$F$*$j(B
$B$=$l$H5$$:$+$:$K(B newfs$B$7$F$$$?$i(B wd0s3$B$K(B newfs$B$7$F$J$/$F$b(B
$BGK2u$5$l$F$$$k$N$GL5M}$G$9!#$7$+$7!"(Bslice table$B$NGK2u$@$1$N(B
$BLdBj$J$i(B fdisk$B$G(B start point$B$r@5$7$$0LCV$K0\$;$P!"FI$_=P$;$k$+$bCN$l$^$;$s(B
$B!t$b$A$m$s!"NN0h$,=E$J$C$F>e=q$-$5$l$F$J$1$l$P$G$9$,(B

$B$G!"FI$_=P$=$&$H$9$k:]$KI,MW$J$N$O(B slice$B$ND9$5$H@hF,0LCV$G$9(B
slice table$B<+BN$N<L$7$,$J$/$F$b!"$I$N$h$&$K$7$F(B slice$B$r:n$C$F$$$C$?$+(B
$B$N5-O?$,$"$k$H(B disk$B$N(B geometry$B$,F10l$J$N$G?dDj2DG=$G$9(B

$B6qBNE*$J<j=g$O!"Nc$($P(B sysinstall$B$G@=:n$7$?>l9g(B
sysinatll$B$+$i(B "commit$B$;$:$K(B" fdisk$B$@$19T$$(B start sector$BHV9fEy$rD4$Y$k(B
reboot$B$7$F(B boot.flp & fixit.flp$B$G(B fdisk$B$rN)$A>e$2$k(B
$B<jF0$G3:Ev(B slice$B$N>pJs$r=$@5$9$k(B

$B$?$@$7!"$^$C$5$i$J>uBV$+$i(B slice$BJQ99A0$^$G$K9T$C$?(B slice$BA`:n$r(B
$BAL$l$k$3$H$,I,MW$G$9(B($BIaDL@Z$j$N$$$$?t;z$K$9$k$N$G!"$"$kDxEY(B
$B;W$$=P$;$k$H;W$&$N$G$9$,(B)

$B$^$?!"(Bdisk$B$N(B dump$B$+$iC5$9J}K!$H$7$F$O!"(Bslice$BJQ99A0$N;D$C$F$$$k>pJs$+$i(B
$B$*$*$h$=$N0LCV$r35;;$7!"(Bdisklabel$B$N(B magic number$B$d(B
super block$B$N(B magic number$B$rC5$7$F0LCV$rFCDj$7!"(Bfdisk$B$G=$@5$H$$$&(B
$BJ}K!$b$"$jF@$^$9$,!"<+F02=$5$l$?F;6q$J$7$K9T$&$N$OL5KE$G$9(B

--
#  Akio Morita ( $B?9ED(B $B><IW(B -- $B5~ETBg3XBg3X1!M}3X8&5f2JGn;N(B1$B2s@8(B )
#   E-mail:  amorita@meadow.scphys.kyoto-u.ac.jp
#  WebPage:  http://tancho.scphys.kyoto-u.ac.jp/~amorita/
