slitaz-dev-tools annotate mirror-tools/var/www/slitaz/mirror/floppies/builder/bootloader @ rev 5

Add /var/www/mirror-info/mirror from mirror-tools stuff.
author Christopher Rogers <slaxemulator@gmail.com>
date Thu Feb 24 01:29:50 2011 +0000 (2011-02-24)
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slaxemulator@5 1 #!/bin/sh
slaxemulator@5 2 #
slaxemulator@5 3 # This script creates a floppy image set from a linux bzImage and can merge
slaxemulator@5 4 # a cmdline and/or one or more initramfs.
slaxemulator@5 5 # The total size can not exceed 15M because INT 15H function 87H limitations.
slaxemulator@5 6 #
slaxemulator@5 7 # (C) 2009 Pascal Bellard - GNU General Public License v3.
slaxemulator@5 8
slaxemulator@5 9 usage()
slaxemulator@5 10 {
slaxemulator@5 11 cat <<EOT
slaxemulator@5 12 Usage: $0 bzImage [--prefix image_prefix] [--cmdline 'args']
slaxemulator@5 13 [--rdev device] [--video mode] [--flags rootflags] [--tracks cnt]
slaxemulator@5 14 [--format 1440|1680|1920|2880 ] [--initrd initrdfile]...
slaxemulator@5 15
slaxemulator@5 16 Default values: --format 1440 --tracks 80 --prefix floppy.
slaxemulator@5 17
slaxemulator@5 18 Example:
slaxemulator@5 19 $0 /boot/vmlinuz-2.6.30.6 --rdev /dev/ram0 --video -3 --cmdline 'rw lang=fr_FR kmap=fr-latin1 laptop autologin' --initrd /boot/rootfs.gz --initrd ./myconfig.gz
slaxemulator@5 20 EOT
slaxemulator@5 21 exit 1
slaxemulator@5 22 }
slaxemulator@5 23
slaxemulator@5 24 KERNEL=""
slaxemulator@5 25 INITRD=""
slaxemulator@5 26 CMDLINE=""
slaxemulator@5 27 PREFIX="floppy."
slaxemulator@5 28 FORMAT="1440"
slaxemulator@5 29 RDEV=""
slaxemulator@5 30 VIDEO=""
slaxemulator@5 31 FLAGS=""
slaxemulator@5 32 TRACKS=""
slaxemulator@5 33 DEBUG=""
slaxemulator@5 34 while [ -n "$1" ]; do
slaxemulator@5 35 case "$1" in
slaxemulator@5 36 --c*|-c*) CMDLINE="$2"; shift;;
slaxemulator@5 37 --i*|-i*) INITRD="$INITRD $2"; shift;;
slaxemulator@5 38 --p*|-p*) PREFIX="$2"; shift;;
slaxemulator@5 39 --fo*|-f*) FORMAT="$2"; shift;;
slaxemulator@5 40 --fl*) FLAGS="$2"; shift;; # 1 read-only, 0 read-write
slaxemulator@5 41 --r*|-r*) RDEV="$2"; shift;; # /dev/???
slaxemulator@5 42 --v*|-v*) VIDEO="$2"; shift;; # -3 .. n
slaxemulator@5 43 --t*|-t*) TRACKS="$2"; shift;; # likely 81 .. 84
slaxemulator@5 44 --debug) DEBUG="1";;
slaxemulator@5 45 *) KERNEL="$1";;
slaxemulator@5 46 esac
slaxemulator@5 47 shift
slaxemulator@5 48 done
slaxemulator@5 49 [ -n "$KERNEL" -a -f "$KERNEL" ] || usage
slaxemulator@5 50 if [ -n "$TRACKS" ]; then
slaxemulator@5 51 if [ $(( $FORMAT % $TRACKS )) -ne 0 ]; then
slaxemulator@5 52 echo "Invalid track count for format $FORMAT."
slaxemulator@5 53 usage
slaxemulator@5 54 fi
slaxemulator@5 55 fi
slaxemulator@5 56
slaxemulator@5 57 # write a 16 bits data
slaxemulator@5 58 # usage: store16 offset data16 file
slaxemulator@5 59 store16()
slaxemulator@5 60 {
slaxemulator@5 61 echo $(( $2 + 0x10000 )) | \
slaxemulator@5 62 awk '{ printf "\\\\x%02X\\\\x%02X",$1%256,($1/256)%256 }' | \
slaxemulator@5 63 xargs echo -en | \
slaxemulator@5 64 dd bs=2 conv=notrunc of=$3 seek=$(( $1 / 2 )) 2> /dev/null
slaxemulator@5 65 [ -n "$DEBUG" ] && printf "store16(%04X) = %04X\n" $1 $2 1>&2
slaxemulator@5 66 }
slaxemulator@5 67
slaxemulator@5 68 # write a 32 bits data
slaxemulator@5 69 # usage: storelong offset data32 file
slaxemulator@5 70 storelong()
slaxemulator@5 71 {
slaxemulator@5 72 echo $2 | awk '{ printf "\\\\x%02X\\\\x%02X\\\\x%02X\\\\x%02X",
slaxemulator@5 73 $1%256,($1/256)%256,($1/256/256)%256,($1/256/256/256)%256 }' | \
slaxemulator@5 74 xargs echo -en | \
slaxemulator@5 75 dd bs=4 conv=notrunc of=$3 seek=$(( $1 / 4 )) 2> /dev/null
slaxemulator@5 76 [ -n "$DEBUG" ] && printf "storelong(%04X) = %08X\n" $1 $2 1>&2
slaxemulator@5 77 }
slaxemulator@5 78
slaxemulator@5 79 # read a 32 bits data
slaxemulator@5 80 # usage: getlong offset file
slaxemulator@5 81 getlong()
slaxemulator@5 82 {
slaxemulator@5 83 dd if=$2 bs=1 skip=$(( $1 )) count=4 2> /dev/null | \
slaxemulator@5 84 hexdump -e '"" 1/4 "%d" "\n"'
slaxemulator@5 85 }
slaxemulator@5 86
slaxemulator@5 87 floppyset()
slaxemulator@5 88 {
slaxemulator@5 89 # bzImage offsets
slaxemulator@5 90 CylinderCount=496
slaxemulator@5 91 SetupSzOfs=497
slaxemulator@5 92 FlagsOfs=498
slaxemulator@5 93 SyssizeOfs=500
slaxemulator@5 94 VideoModeOfs=506
slaxemulator@5 95 RootDevOfs=508
slaxemulator@5 96 CodeAdrOfs=0x214
slaxemulator@5 97 RamfsAdrOfs=0x218
slaxemulator@5 98 RamfsLenOfs=0x21C
slaxemulator@5 99 ArgPtrOfs=0x228
slaxemulator@5 100
slaxemulator@5 101 # boot+setup address
slaxemulator@5 102 SetupBase=0x90000
slaxemulator@5 103
slaxemulator@5 104 stacktop=0x9E00
slaxemulator@5 105
slaxemulator@5 106 bs=/tmp/bs$$
slaxemulator@5 107
slaxemulator@5 108 # Get and patch boot sector
slaxemulator@5 109 # See http://hg.slitaz.org/wok/raw-file/711d076b277c/linux/stuff/linux-header-2.6.34.u
slaxemulator@5 110 dd if=$KERNEL bs=512 count=1 of=$bs 2> /dev/null
slaxemulator@5 111 uudecode <<EOT | dd of=$bs conv=notrunc 2> /dev/null
slaxemulator@5 112 begin-base64 644 -
slaxemulator@5 113 /L+6nWgAkAcGF4n8McC5HQDzq1sfD6mg8X1ABlfFd3ixBvOlZWaPR3gGH8ZF
slaxemulator@5 114 +D/6l1hB6DQBvgACA3QO6HYBWwseKAJ0LFNH6AoBXuhmAbAgzRCwCM0QTuhl
slaxemulator@5 115 ATwIdAOIBK05NigCdPDoPgE8CnXgiHz+ieb/TBD/TBi/9AGBTRz/gMdFMACc
slaxemulator@5 116 sBCxBUi0k4lEHLABiUQUmGaY0+BIZgMFZtPoaAAQB7+AACn4nHMCAccx21BW
slaxemulator@5 117 6J4AXrkAgLSH/kQczRVYnXfcoRoCvxwCsQk4RBxyuJPNE+oAACCQsEYoyL7b
slaxemulator@5 118 AejSAF3rI4D5E3IEOMF3a4D+AnIEOOZ3bGCB/QAGdCoGUlFTlrQCULEGtQTB
slaxemulator@5 119 xQSwDyHoBJAnFEAn6IwA/s117LAgzRDitOiWAJjNE2FSUCjIdwKwAZg5+HIC
slaxemulator@5 120 ifhQtALNE5VeWFpyoJVBjuGAxwJPdFFOdfSM4ZU4wXVFiMj+xrEBOOZ1O4j0
slaxemulator@5 121 /sW2AID9UHIwOi7wAXIqtQBgvt4B/kQMU+gxAFvoOAB1FlKYzRO4AQLNE1rQ
slaxemulator@5 122 1Dpk/nXqRgjkdeVh64sWB7AxLAO0DrsHAM0QPA1088OwDejv/6wIwHX4w79s
slaxemulator@5 123 BLFbZQINuA0BZToNdArNFnT0mM0Wju9Hw1g6AEluc2VydCBkaXNrIDEuBw0A
slaxemulator@5 124 AA==
slaxemulator@5 125 ====
slaxemulator@5 126 EOT
slaxemulator@5 127
slaxemulator@5 128 # Get setup
slaxemulator@5 129 setupsz=$(getlong $SetupSzOfs $bs)
slaxemulator@5 130 setupszb=$(( $setupsz & 255 ))
slaxemulator@5 131 dd if=$KERNEL bs=512 skip=1 count=$setupszb 2> /dev/null >> $bs
slaxemulator@5 132
slaxemulator@5 133 if [ -n "$TRACKS" ]; then
slaxemulator@5 134 [ -n "$DEBUG" ] && echo -n "--tracks " 1>&2
slaxemulator@5 135 n=$(getlong $CylinderCount $bs)
slaxemulator@5 136 store16 $CylinderCount $(( ($n & -256) + $TRACKS )) $bs
slaxemulator@5 137 fi
slaxemulator@5 138 if [ -n "$FLAGS" ]; then
slaxemulator@5 139 [ -n "$DEBUG" ] && echo -n "--flags " 1>&2
slaxemulator@5 140 store16 $FlagsOfs $FLAGS $bs
slaxemulator@5 141 fi
slaxemulator@5 142 if [ -n "$VIDEO" ]; then
slaxemulator@5 143 [ -n "$DEBUG" ] && echo -n "--video " 1>&2
slaxemulator@5 144 store16 $VideoModeOfs $VIDEO $bs
slaxemulator@5 145 fi
slaxemulator@5 146 if [ -n "$RDEV" ]; then
slaxemulator@5 147 if [ "$(dirname $RDEV)" == "/dev" -a -b $RDEV ]; then
slaxemulator@5 148 [ -n "$DEBUG" ] && echo -n "--rdev " 1>&2
slaxemulator@5 149 RDEV=$(stat -c '0x%02t%02T' $RDEV 2> /dev/null)
slaxemulator@5 150 store16 $RootDevOfs $RDEV $bs
slaxemulator@5 151 fi
slaxemulator@5 152 fi
slaxemulator@5 153
slaxemulator@5 154 # Store cmdline after setup
slaxemulator@5 155 if [ -n "$CMDLINE" ]; then
slaxemulator@5 156 [ -n "$DEBUG" ] && echo -n "--cmdline '$CMDLINE' " 1>&2
slaxemulator@5 157 echo -n "$CMDLINE" | dd bs=512 count=1 conv=sync 2> /dev/null >> $bs
slaxemulator@5 158 storelong $ArgPtrOfs $(( $SetupBase + $stacktop )) $bs
slaxemulator@5 159 fi
slaxemulator@5 160
slaxemulator@5 161 # Compute initramfs size
slaxemulator@5 162 initrdlen=0
slaxemulator@5 163 for i in $( echo $INITRD | sed 's/,/ /' ); do
slaxemulator@5 164 [ -s "$i" ] || continue
slaxemulator@5 165 [ -n "$DEBUG" ] && echo "--initrd $i " 1>&2
slaxemulator@5 166 initrdlen=$(( ($initrdlen + $(stat -c %s $i) + 3) & -4 ))
slaxemulator@5 167 done
slaxemulator@5 168 if [ $initrdlen -ne 0 ]; then
slaxemulator@5 169 [ -n "$DEBUG" ] && echo "initrdlen = $initrdlen " 1>&2
slaxemulator@5 170 storelong $RamfsAdrOfs \
slaxemulator@5 171 $(( (0x1000000 - $initrdlen) & 0xFFFF0000 )) $bs
slaxemulator@5 172 storelong $RamfsLenOfs $initrdlen $bs
slaxemulator@5 173 fi
slaxemulator@5 174
slaxemulator@5 175 # Output boot sector + setup + cmdline
slaxemulator@5 176 dd if=$bs 2> /dev/null
slaxemulator@5 177
slaxemulator@5 178 # Output kernel code
slaxemulator@5 179 dd if=$KERNEL bs=512 skip=$(( $setupszb + 1 )) 2> /dev/null
slaxemulator@5 180
slaxemulator@5 181 # Pad to next sector
slaxemulator@5 182 Kpad=$(( 512 - ($(stat -c %s $KERNEL) & 511) ))
slaxemulator@5 183 [ $Kpad -eq 512 ] || dd if=/dev/zero bs=1 count=$Kpad 2> /dev/null
slaxemulator@5 184
slaxemulator@5 185 # Output initramfs
slaxemulator@5 186 padding=0
slaxemulator@5 187 for i in $( echo $INITRD | sed 's/,/ /' ); do
slaxemulator@5 188 [ -s "$i" ] || continue
slaxemulator@5 189 [ $padding -ne 0 ] && dd if=/dev/zero bs=1 count=$padding 2> /dev/null
slaxemulator@5 190 dd if=$i 2> /dev/null
slaxemulator@5 191 padding=$(( 4 - ($(stat -c %s $i) & 3) ))
slaxemulator@5 192 [ $padding -eq 4 ] && padding=0
slaxemulator@5 193 done
slaxemulator@5 194
slaxemulator@5 195 # Cleanup
slaxemulator@5 196 rm -f $bs
slaxemulator@5 197 }
slaxemulator@5 198
slaxemulator@5 199 if [ "$FORMAT" == "0" ]; then # unsplitted
slaxemulator@5 200 floppyset > $PREFIX
slaxemulator@5 201 exit
slaxemulator@5 202 fi
slaxemulator@5 203 floppyset | split -b ${FORMAT}k /dev/stdin floppy$$
slaxemulator@5 204 i=1
slaxemulator@5 205 ls floppy$$* | while read file ; do
slaxemulator@5 206 output=$PREFIX$(printf "%03d" $i)
slaxemulator@5 207 cat $file /dev/zero | dd bs=1k count=$FORMAT conv=sync of=$output 2> /dev/null
slaxemulator@5 208 echo $output
slaxemulator@5 209 rm -f $file
slaxemulator@5 210 i=$(( $i + 1 ))
slaxemulator@5 211 done