tazpanel: bootloader annotate

tazpanel annotate bootloader @ rev 638

boot.iso: allow /dev/cdrom

author	Pascal Bellard <pascal.bellard@slitaz.org>
date	Wed Jan 05 15:14:01 2022 +0000 (2022-01-05)
parents	506184fa1105
children

rev	line source
pascal@516	1 #!/bin/sh
pascal@516	2 #
pascal@516	3 # This script creates a floppy image set from a linux bzImage and can merge
pascal@516	4 # a cmdline and/or one or more initramfs.
pascal@516	5 #
pascal@516	6 # (C) 2009-2015 Pascal Bellard - GNU General Public License v3.
pascal@516	7
pascal@516	8 usage()
pascal@516	9 {
pascal@516	10 cat <<EOT
pascal@516	11 Usage: $0 bzImage [--prefix image_prefix] [--info file] [--quiet]
pascal@516	12 [--format 1200\|1440\|1680\|1920\|2880\|...] [--mem mb] [--tracks cnt]
pascal@516	13 [--rdev device] [--video mode] [--flags rootflags] [--no-syssize-fix]
pascal@516	14 [--dont-edit-cmdline] [--cmdline 'args'] [--hide-version-string]
pascal@516	15 [--address-initrd address] [--initrd initrdfile]...
pascal@516	16
pascal@516	17 Default values: --format 1440 --tracks 80 --rdev /dev/fd0 --prefix floppy. --mem 16
pascal@516	18
pascal@516	19 Example:
pascal@516	20 $0 /boot/bzImage --rdev /dev/ram0 --video -3 --cmdline 'rw lang=fr_FR kmap=fr-latin1 laptop autologin' --initrd /boot/rootfs.gz --initrd ./myconfig.gz
pascal@516	21
pascal@516	22 or: $0 --extract floppy*
pascal@516	23
pascal@516	24 Create kernel and maybe cmdline, initrd and info files from a floppy images set
pascal@516	25 EOT
pascal@516	26 exit 1
pascal@516	27 }
pascal@516	28
pascal@516	29 # bzImage offsets
pascal@516	30 SetupSzOfs=497
pascal@516	31 FlagsOfs=498
pascal@516	32 OldRamfsLenOfs=504
pascal@516	33 VideoModeOfs=506
pascal@516	34 RootDevOfs=508
pascal@516	35 Magic=0x202
pascal@516	36 RamfsAdrOfs=0x218
pascal@516	37 RamfsLenOfs=0x21C
pascal@516	38
pascal@516	39 ddq() { dd $@ 2> /dev/null; }
pascal@516	40
pascal@516	41 get()
pascal@516	42 {
pascal@516	43 echo $( od -v -j $(($1)) -N ${4:-${3:-2}} -t u${3:-2} -w${3:-2} -An $2 2>/dev/null \|\|
pascal@516	44 hexdump -v -s $(($1)) -n ${4:-${3:-2}} -e "\"\" 1/${3:-2} \" %d\n\"" $2 )
pascal@516	45 }
pascal@516	46
pascal@516	47 trace()
pascal@516	48 {
pascal@516	49 [ -n "$DEBUG" ] && printf "$@" 1>&2 && echo 1>&2
pascal@516	50 }
pascal@516	51
pascal@516	52 # usage: store bits offset data file
pascal@516	53 store()
pascal@516	54 {
pascal@516	55 n=$3; for i in $(seq 8 8 $1); do
pascal@516	56 printf '\\\\x%02X' $(($n & 255))
pascal@516	57 n=$(($n >> 8))
pascal@516	58 done \| xargs echo -en \| ddq bs=1 conv=notrunc of=$4 seek=$(($2))
pascal@516	59 s=$1; a=$2; d=$3; shift 4; c="$@"
pascal@516	60 trace "store$s(%03X) = %0$(($s/4))X $c" $a $d
pascal@516	61 }
pascal@516	62
pascal@516	63 die()
pascal@516	64 {
pascal@516	65 echo $@ 1>&2
pascal@516	66 exit 1
pascal@516	67 }
pascal@516	68 extract()
pascal@516	69 {
pascal@516	70 shift
pascal@516	71 [ ! -s "$1" ] && die "No floppy ?"
pascal@516	72 [ $(get 0x1FE "$1") -ne 43605 ] && die "Not bootable"
pascal@516	73 [ $(get $Magic "$1" 4) != 1400005704 ] &&
pascal@516	74 [ $(get 0x1F4 "$1") -gt 32768 -o $(get 0x1F6 "$1") -ne 0 ] &&
pascal@516	75 die "Not linux."
pascal@516	76 FORMAT="$(($(stat -c "%s" $1)/1024))"
pascal@516	77 cat <<EOT
pascal@516	78 --format $FORMAT
pascal@516	79 --rdev $(printf "0x%04X" $(get $RootDevOfs $1))
pascal@516	80 --video $(get $VideoModeOfs $1)
pascal@516	81 --flags $(get $FlagsOfs $1)
pascal@516	82 EOT
pascal@516	83 MYBB="$(ddq if=$1 bs=512 count=1 \| strings \| grep "Insert disk 00")"
pascal@516	84 cmdline=0
pascal@516	85 info=0
pascal@516	86 if [ "$MYBB" ]; then
pascal@516	87 cmdline=$(get 0x22 $1)
pascal@516	88 info=$(get 0x1EF $1)
pascal@516	89 [ $(get 0x75 $1) -eq $((0xDB0)) ] && echo "--dont-edit-cmdline"
pascal@516	90 [ $(get 0x58 $1) -eq $((0x9090)) ] && echo "--hide-version-string"
pascal@516	91 fi
pascal@516	92 n=$(($(get $SetupSzOfs $1 1)+1))
pascal@516	93 [ $n -eq 1 ] && n=5
pascal@516	94 [ $info -ne 0 ] && infolen=$(($n-$info/512)) && n=$(($info/512))
pascal@516	95 [ $cmdline -ne 0 ] && n=$(($cmdline/512))
pascal@516	96 cat "$@" \| {
pascal@516	97 ddq bs=512 count=$n >kernel
pascal@516	98 files="kernel"
pascal@516	99 if [ "$MYBB" ]; then
pascal@516	100 store 8 $SetupSzOfs $(($n-1)) kernel "setup size $n"
pascal@516	101 store 16 0x22 0 kernel "clear cmdline"
pascal@516	102 store 16 0x1EF 0 kernel "clear info"
pascal@516	103 fi
pascal@516	104 [ $cmdline -ne 0 ] && files="$files cmdline" &&
pascal@516	105 ddq bs=512 count=1 \| strings \| sed q > cmdline
pascal@516	106 [ $info -ne 0 ] && files="$files info" &&
pascal@516	107 ddq bs=512 count=$infolen \| sed \
pascal@516	108 's/'$(echo -en "\xff\xff$//;s/\xff/\f")'/g;s/\r/\n/g;q' > info
pascal@516	109 syssz=$(get 0x1F4 kernel 4)
pascal@516	110 ddq bs=16 count=$syssz >>kernel
pascal@516	111 [ $(($syssz % 32)) -ne 0 ] &&
pascal@516	112 ddq bs=16 of=/dev/null count=$((32 - ($syssz % 32)))
pascal@626	113 if [ $(get $Magic kernel 4) = 1400005704 ]; then
pascal@516	114 ddq bs=1 count=200 skip=$((512+$(get 0x20E kernel 2))) \
pascal@516	115 if=kernel \| strings \| sed q
pascal@516	116 len=$(get $RamfsLenOfs kernel 4)
pascal@516	117 if [ $len -ne 0 ]; then
pascal@516	118 adrs=$(get $RamfsAdrOfs kernel 4)
pascal@516	119 printf "--address-initrd 0x%X \n" $adrs
pascal@516	120 echo "--mem $(((($adrs+$len)/1024+512)/1024))"
pascal@516	121 ddq bs=512 count=$((($len+511)/512)) > initrd
pascal@516	122 ddq count=0 bs=1 seek=$len of=initrd
pascal@516	123 files="$files initrd"
pascal@516	124 store 64 $RamfsAdrOfs 0 kernel "reset initrd"
pascal@516	125 fi
pascal@516	126 if [ $(get 0x206 kernel) -ge 514 ]; then
pascal@516	127 store 32 0x228 0 kernel "clean cmdline32"
pascal@516	128 fi
pascal@516	129 else
pascal@516	130 len=$(get $OldRamfsLenOfs kernel)
pascal@516	131 [ $len -ne 0 ] && files="$files initrd" &&
pascal@516	132 if [ -s "$2" ]; then
pascal@516	133 ddq if=$2 bs=1024 count=$len of=initrd
pascal@516	134 else
pascal@516	135 ddq if=$1 bs=1024 skip=256 count=$len of=initrd
pascal@516	136 fi
pascal@516	137 fi
pascal@516	138 ls -l $files
pascal@516	139 }
pascal@516	140 exit
pascal@516	141 }
pascal@516	142
pascal@516	143 KERNEL=""
pascal@516	144 INITRD=""
pascal@516	145 ADRSRD=""
pascal@516	146 CMDLINE=""
pascal@516	147 PREFIX="floppy."
pascal@516	148 FORMAT="1440"
pascal@516	149 RDEV=""
pascal@516	150 VIDEO=""
pascal@516	151 FLAGS=""
pascal@516	152 TRACKS="80"
pascal@516	153 MEM="16"
pascal@516	154 HIDE=""
pascal@516	155 NOEDIT=""
pascal@516	156 QUIET=""
pascal@516	157 NOSYSSIZEFIX=""
pascal@516	158 INFOFILE=""
pascal@516	159 DEBUG=""
pascal@516	160 while [ -n "$1" ]; do
pascal@516	161 case "${1/--/-}" in
pascal@516	162 -c*) CMDLINE="$2"; shift;;
pascal@516	163 -inf*) INFOFILE="$2"; shift;;
pascal@516	164 -i*) INITRD="$INITRD $2"; shift;;
pascal@516	165 -a*) ADRSRD="$2"; shift;;
pascal@516	166 -h*) HIDE="1";;
pascal@516	167 -p*) PREFIX="$2"; shift;;
pascal@516	168 -fl*)FLAGS="$2"; shift;; # 1 read-only, 0 read-write
pascal@516	169 -f*) FORMAT="$2"; shift;;
pascal@516	170 -m*) MEM="$(echo $2 \| sed 's/[^0-9]//g')"; shift;;
pascal@516	171 -r*) RDEV="$2"; shift;;
pascal@516	172 -v*) VIDEO="$2"; shift;; # -3 .. n
pascal@516	173 -t*) TRACKS="$2"; shift;; # likely 81 .. 84
pascal@516	174 -n*) NOSYSSIZEFIX="1";;
pascal@516	175 -debug) DEBUG="1";;
pascal@516	176 -d*) NOEDIT="1";;
pascal@516	177 -q*) QUIET="1";;
pascal@516	178 -e*) extract "$@";;
pascal@516	179 *) KERNEL="$1";;
pascal@516	180 esac
pascal@516	181 shift
pascal@516	182 done
pascal@516	183 [ -n "$KERNEL" -a -f "$KERNEL" ] \|\| usage
pascal@516	184 while [ -L "$KERNEL" ]; do KERNEL="$(readlink "$KERNEL")"; done
pascal@516	185 if [ $(( $FORMAT % $TRACKS )) -ne 0 ]; then
pascal@516	186 echo "Invalid track count for format $FORMAT."
pascal@516	187 usage
pascal@516	188 fi
pascal@516	189 [ 0$MEM -lt 2 ] && MEM=2
pascal@516	190
pascal@516	191 patch()
pascal@516	192 {
pascal@516	193 echo -en $(echo ":$2" \| sed 's/:/\\x/g') \| \
pascal@516	194 ddq bs=1 conv=notrunc of=$3 seek=$((0x$1))
pascal@516	195 trace "patch $1 $2 $4"
pascal@516	196 }
pascal@516	197
pascal@516	198 error()
pascal@516	199 {
pascal@516	200 rm -f $bs
pascal@516	201 die $@
pascal@516	202 }
pascal@516	203
pascal@516	204 floppyset()
pascal@516	205 {
pascal@516	206 # boot+setup address
pascal@516	207 SetupBase=0x90000
pascal@516	208
pascal@516	209 bs=/tmp/bs$$
pascal@516	210
pascal@516	211 # Get and patch boot sector
pascal@516	212 # See http://hg.slitaz.org/wok/raw-file/13835bce7189/syslinux/stuff/iso2exe/bootloader.S
pascal@516	213 trace "Read bootsector..."
pascal@516	214 ddq if=$KERNEL bs=512 count=1 of=$bs
pascal@516	215
pascal@516	216 [ $(get 0x1FE $bs) -eq 43605 ] \|\| error "Not bootable"
pascal@516	217
pascal@516	218 uudecode <<EOT \| ddq of=$bs conv=notrunc
pascal@516	219 begin-base64 644 -
pascal@516	220 v8adaACQF4n8FgcxwLk7APOqWx+g8X1AD6H6xXd4XwZXvQAAsQbzpRYfZGaP
pascal@516	221 R3jGRfg/l1hB6CQBMfYLNu8BdAzoggF0B+hgATwbdfS+AAKBTBAggMZEJZvo
pascal@516	222 ZwEx9gt3G3Q6x0cZP6PoWwGwIOgtASwYc/lO6DEBmDwIdAOIBK05dxt08OgV
pascal@516	223 ATwKdd+IfP4WB78AgIn+h3cbtQLzpFuJ5v9IEMdAFAiTgPMIdfO79AGxBaEV
pascal@516	224 AmaLH2ZLZtPrZkOJRBtmv4AAAABmKfuccwIB31BTVjHbaACAB+hwAF5bjMG0
pascal@516	225 hxYHzRVYBQABEEwfnXfPuQkCuxwCOE/+che0iM0VPQCwcgaIbB+Ib/+hGQLT
pascal@516	226 b+J1o5fNE+oAACCQWjjBdzRgzRP56HMAYVJQKMh3ArABOfhyAon4ULQCzRNa
pascal@516	227 WHLclQHRjukA1wDXKddadE2M6ZU4wXXUiMixATDOdcz+xYD9UHXFtQBgvtEB
pascal@516	228 U7sPAIAg8Ev+AIA4OXf16EwAW4n16CkAdRVSmM0TuAECzRNa0NQ6Zv516kVI
pascal@516	229 debrjbAxHAO0DrsHAM0QPA1088O/bARkxgWmuA0BZDoldArNFnT0mM0WjudH
pascal@516	230 wwN0DrAN6NL/rDwAf/jDSW5zZXJ0IGRpc2sgMDAxIGFuZCBFbnRlci4HDQAA
pascal@516	231 AAA=
pascal@516	232 ====
pascal@516	233 EOT
pascal@516	234 # Get setup
pascal@516	235 setupsz=$(get $SetupSzOfs $bs 1)
pascal@516	236 if [ $setupsz -eq 0 ]; then
pascal@516	237 setupsz=4
pascal@516	238 store 8 $SetupSzOfs $setupsz $bs "setup size $setupsz"
pascal@516	239 fi
pascal@516	240 trace "Read setup ($setupsz sectors) ..."
pascal@516	241 ddq if=$KERNEL bs=512 skip=1 count=$setupsz >> $bs
pascal@516	242
pascal@516	243 Version=$(get 0x206 $bs)
pascal@516	244 [ $(get $Magic $bs 4) != 1400005704 ] && Version=0
pascal@516	245 feature=""
pascal@516	246 while read prot kern info ; do
pascal@516	247 [ $Version -lt $((0x$prot)) ] && continue
pascal@516	248 feature="features $prot starting from kernel $kern "
pascal@516	249 done <<EOT
pascal@516	250 200 1.3.73 kernel_version, bzImage, initrd, loadflags/type_of_loader
pascal@516	251 201 1.3.76 heap_end_ptr
pascal@516	252 202 2.4.0 new cmdline + relocatable setup
pascal@516	253 204 2.6.14 long syssize
pascal@516	254 206 2.6.22 cmdline maxsize $(get 0x238 $bs 4)
pascal@516	255 EOT
pascal@516	256 trace "Protocol %X $feature" $Version
pascal@516	257
pascal@516	258 # Old kernels need bootsector patches to disable rescent features
pascal@516	259 while read minversion maxversion offset bytes rem; do
pascal@516	260 [ $Version -gt $(( 0x$maxversion )) ] && continue
pascal@516	261 [ $Version -lt $(( 0x$minversion )) ] && continue
pascal@516	262 patch $offset $bytes $bs "$rem"
pascal@516	263 done <<EOT
pascal@516	264 000 1FF 0B2 B8:00:01 force zImage (movw \$0x100, %ax)
pascal@516	265 000 1FF 0F9 EB skip initrd code
pascal@516	266 000 1FF 059 90:90:90 no kernel version
pascal@516	267 000 1FF 050 90:90:90:90:90 type_of_loader
pascal@516	268 000 200 055 90:90:90:90 heap_end_ptr
pascal@516	269 000 203 1F6 00:00 syssize32
pascal@516	270 EOT
pascal@516	271 [ -n "$CMDLINE" ] \|\| patch 061 EB $bs "No cmdline"
pascal@516	272 [ -n "$HIDE" ] && patch 058 90 90 90 $bs "Hide version"
pascal@516	273 [ -n "$NOEDIT" ] && patch 075 B0:0D:90 $bs 'mov CR,%al ; nop'
pascal@516	274 [ 1$TRACKS -ne 180 ] && store 8 0x15F $TRACKS $bs TRACKS
pascal@516	275
pascal@516	276 [ -n "$FLAGS" ] && store 16 $FlagsOfs $FLAGS $bs FLAGS
pascal@516	277 [ -n "$VIDEO" ] && store 16 $VideoModeOfs $VIDEO $bs VIDEO
pascal@516	278 [ -n "$RDEV" ] \|\| case "$FORMAT" in
pascal@516	279 1200) RDEV=0x0208 ;;
pascal@516	280 1440) RDEV=0x021C ;;
pascal@516	281 2880) RDEV=0x0220 ;;
pascal@516	282 *) RDEV=0x0200 ;;
pascal@516	283 esac
pascal@516	284 while [ -L "$RDEV" ]; do RDEV="$(readlink "$RDEV")"; done
pascal@516	285 [ -b "$RDEV" ] && RDEV=$(stat -c '0x%02t%02T' $RDEV 2> /dev/null)
pascal@516	286 [ "$(echo $RDEV \| tr '[0-9A-FXa-fx]' 0 \| sed 's/0//g')" ] \|\|
pascal@516	287 store 16 $RootDevOfs $RDEV $bs RDEV
pascal@516	288
pascal@516	289 [ $FORMAT -lt 720 ] && store 8 0x15F 40 $bs 360K
pascal@516	290 [ $FORMAT -lt 320 ] && store 8 0x158 237 $bs 160K
pascal@516	291
pascal@516	292 extra=0
pascal@516	293 # Store cmdline after setup for kernels >= 0.99
pascal@516	294 if [ -n "$CMDLINE" ]; then
pascal@516	295 CmdlineOfs=$(stat -c '%s' $bs)
pascal@516	296 store 16 0x22 $CmdlineOfs $bs "Cmdline @$CmdlineOfs '$CMDLINE'"
pascal@516	297 [ $Version -ge 514 ] &&
pascal@516	298 store 32 0x228 $(( $SetupBase + 0x8000 )) $bs "Cmdline32"
pascal@516	299 echo -n "$CMDLINE" \| ddq bs=512 count=1 conv=sync >> $bs
pascal@516	300 extra=$(($extra+1))
pascal@516	301 store 8 0x1F1 $(($setupsz+$extra)) $bs setup size
pascal@516	302 [ $Version -ge 512 ] && [ -n "$QUIET" ] &&
pascal@516	303 store 8 0x211 $(($(get 0x211 $bs 1) \| 32)) $bs suppress early messages
pascal@516	304 fi
pascal@516	305
pascal@516	306 # Info text after setup
pascal@516	307 if [ -s "$INFOFILE" ]; then
pascal@516	308 InfoOfs=$(stat -c '%s' $bs)
pascal@516	309 sed -e ':a;N;$!ba;s/\r\n/\r/g;s/\n/\r/g' \
pascal@516	310 -e 's/'$(echo -e "\f/\xff/g;s/$/\xff\xff")'/' \
pascal@516	311 < "$INFOFILE" > $bs.infotext
pascal@516	312 ddq if=/dev/zero bs=512 count=1 >>$bs.infotext
pascal@516	313 infolen=$(($(stat -c %s $bs.infotext)/512))
pascal@516	314 ddq if=$bs.infotext count=$infolen bs=512 >> $bs
pascal@516	315 extra=$(($extra+$infolen))
pascal@516	316 rm -f $bs.infotext
pascal@516	317 store 8 0x1F1 $(($setupsz+$extra)) $bs setup size
pascal@516	318 store 16 0x1EF $InfoOfs $bs update infoptr
pascal@516	319 fi
pascal@516	320
pascal@516	321 syssz=$((($(stat -c %s $KERNEL)+15)/16-32*(1+$setupsz)))
pascal@516	322 #syssz=$(get 0x1F4 $bs 4)
pascal@516	323 sysszsect=$((($syssz+31)/32))
pascal@516	324 store 16 $OldRamfsLenOfs 0 $bs clear oldramfs
pascal@516	325 INITRD="${INITRD# }"
pascal@516	326 INITRDPAD=4
pascal@516	327 [ -n "$INITRD" ] &&
pascal@516	328 if [ $Version -lt 512 ]; then
pascal@516	329 # Compute initramfs location (protocol < 2.00)
pascal@516	330 [ $syssz -gt 32768 ] && syssz=$(get 0x1F4 $bs 2)
pascal@516	331 [ $syssz -eq 0 ] && syssz=$((0x7F00))
pascal@516	332 sysszsect=$((($syssz+31)/32))
pascal@517	333 INITRD="${INITRD%% *}"
pascal@516	334 initrdlen=$(stat -c %s "$INITRD")
pascal@516	335 store 16 $OldRamfsLenOfs $(($initrdlen/1024)) $bs set oldramfs
pascal@516	336 INITRDDISKALIGN=$((0x40000))
pascal@516	337 [ $(($initrdlen+$INITRDDISKALIGN)) -gt $(($FORMAT*1024)) -o \
pascal@516	338 $(((512*$sysszsect) + $(stat -c %s $bs))) -gt $INITRDDISKALIGN -o \
pascal@516	339 -n "$ADRSRD" ] && INITRDDISKALIGN=$(($FORMAT*1024))
pascal@516	340 else
pascal@516	341 INITRDRAMALIGN=0x1000
pascal@516	342 # Compute initramfs size (protocol >= 2.00)
pascal@516	343 initrdlen=0
pascal@516	344 INITRDDISKALIGN=0
pascal@516	345 for i in ${INITRD//,/ }; do
pascal@516	346 [ -s "$i" ] \|\| continue
pascal@516	347 while [ -L "$i" ]; do i="$(readlink $i)"; done
pascal@516	348 size=$(stat -c %s "$i")
pascal@516	349 trace "initrd $i $size "
pascal@516	350 initrdlen=$(((($initrdlen + $INITRDPAD - 1) & -$INITRDPAD) + $size))
pascal@516	351 ADRSRD2=$(( (($MEM * 0x100000) - $initrdlen) & -$INITRDRAMALIGN ))
pascal@516	352 store 32 $RamfsAdrOfs $(( ${ADRSRD:-$ADRSRD2} )) $bs initrd adrs
pascal@516	353 store 32 $RamfsLenOfs $initrdlen $bs initrdlen
pascal@516	354 done
pascal@516	355 fi
pascal@516	356
pascal@516	357 [ -n "$NOSYSSIZEFIX" ] \|\| store 32 0x1F4 $syssz $bs fix system size
pascal@516	358
pascal@516	359 # Output boot sector + setup + cmdline + info
pascal@516	360 ddq if=$bs
pascal@516	361
pascal@516	362 # Output kernel code
pascal@516	363 [ $INITRDDISKALIGN -ne 0 ] &&
pascal@516	364 INITRDDISKALIGN=$(($INITRDDISKALIGN/512-$sysszsect-$extra-$setupsz-1))
pascal@516	365 cat $KERNEL /dev/zero \| ddq bs=512 skip=$(( $setupsz+1 )) \
pascal@516	366 count=$(($sysszsect+$INITRDDISKALIGN)) conv=sync
pascal@516	367
pascal@516	368 # Output initramfs
pascal@516	369 padding=$INITRDPAD
pascal@516	370 for i in ${INITRD//,/ }; do
pascal@516	371 [ -s "$i" ] \|\| continue
pascal@516	372 [ $padding -eq $INITRDPAD ] \|\| ddq if=/dev/zero bs=1 count=$padding
pascal@516	373 ddq if=$i
pascal@516	374 trace "initrd $i ($(stat -c %s $i) bytes) padding $INITRDPAD"
pascal@516	375 padding=$(( $INITRDPAD - ($(stat -c %s $i) % $INITRDPAD) ))
pascal@516	376 done
pascal@516	377
pascal@516	378 # Cleanup
pascal@516	379 rm -f $bs
pascal@516	380 }
pascal@516	381
pascal@626	382 if [ "$FORMAT" = "0" ]; then # unsplitted
pascal@516	383 floppyset > $PREFIX
pascal@516	384 PAD=$(( 512 - ($(stat -c %s $PREFIX) % 512) ))
pascal@516	385 [ $PAD -ne 512 ] && ddq if=/dev/zero bs=1 count=$PAD >> $PREFIX
pascal@516	386 exit
pascal@516	387 fi
pascal@516	388 floppyset \| split -b ${FORMAT}k /dev/stdin floppy$$
pascal@516	389 i=1
pascal@516	390 ls floppy$$* 2> /dev/null \| while read file ; do
pascal@516	391 output=$PREFIX$(printf "%03d" $i)
pascal@516	392 cat $file /dev/zero \| ddq bs=1k count=$FORMAT conv=sync of=$output
pascal@516	393 echo $output
pascal@516	394 rm -f $file
pascal@516	395 i=$(( $i + 1 ))
pascal@516	396 done

SliTaz Repositories

tazpanel annotate bootloader @ rev 638