| 1 | #!/bin/sh |
| 2 | # 6410 SD Boot formatter |
| 3 | # (C) 2008 Openmoko, Inc |
| 4 | # Author: Andy Green <andy@openmoko.com> |
| 5 | |
| 6 | # LAYOUT (if partition parameter is not specified) |
| 7 | # Partition table, then |
| 8 | # VFAT takes up remaining space here |
| 9 | # then... |
| 10 | # |
| 11 | EXT3_ROOTFS_SECTORS=$(( 256 * 1024 * 2 )) |
| 12 | EXT3_BACKUP_FS_SECTORS=$(( 8 * 1024 * 2 )) |
| 13 | QI_ALLOCATION=$(( 256 * 2 )) |
| 14 | # |
| 15 | # lastly fixed stuff: 8KByte initial boot, sig, padding |
| 16 | # |
| 17 | # ---------------------- |
| 18 | |
| 19 | echo "s3c6410 bootable SD partitioning utility" |
| 20 | echo "(C) Openmoko, Inc Andy Green <andy@openmoko.com>" |
| 21 | echo |
| 22 | |
| 23 | # these are fixed in iROM |
| 24 | QI_INITIAL=$(( 8 * 2 )) |
| 25 | SIG=1 |
| 26 | |
| 27 | |
| 28 | # display usage message and exit |
| 29 | # any arguments are displayed as an error message |
| 30 | USAGE() |
| 31 | { |
| 32 | echo |
| 33 | [ -z "$1" ] || echo ERROR: $* |
| 34 | echo |
| 35 | echo 'This formats a SD card for usage on SD Card boot' |
| 36 | echo ' on 6410 based systems' |
| 37 | echo |
| 38 | echo Usage: $(basename "$0") '<device> <card> <bootloader> <partition>' |
| 39 | echo ' device = disk device name for SD Card, e.g. sde /dev/sdf' |
| 40 | echo ' card = sd | sdhc' |
| 41 | echo ' bootloader = /path/to/qi-binary' |
| 42 | echo ' partition = vfat | NN | NN,NN | NN,NN,NN | NN,NN,NN,NN | no' |
| 43 | echo ' * vfat -> main-vfat[rest] + rootfs[256M] + backupfs[8M]' |
| 44 | echo ' NN -> rootfs1[NN%] + .. + rootfs4[NN%]' |
| 45 | echo ' NN=0 -> will skip the partition' |
| 46 | echo ' no -> leave partitions alone' |
| 47 | echo |
| 48 | echo 'Note: * => default action if no parameter specified' |
| 49 | echo ' sum(NN) must be in [1..100]' |
| 50 | echo |
| 51 | echo 'e.g. '$(basename "$0")' sdb sdhc images/qi 0,30,0,45' |
| 52 | echo ' will format an SDHC with partition 2 receiving 20% and partition 4' |
| 53 | echo ' receiving 45% of the disk capacity and the remaining 35% will be' |
| 54 | echo ' unused.' |
| 55 | echo ' Capacity is calculated after subtracting the space reserved for Qi.' |
| 56 | echo ' Partitions 1 and 3 will not be used.' |
| 57 | exit 1 |
| 58 | } |
| 59 | |
| 60 | [ -z "$1" -o -z "$2" -o -z "$3" ] && USAGE 'Missing arguments' |
| 61 | |
| 62 | dev="$1" |
| 63 | card="$2" |
| 64 | qi="$3" |
| 65 | partition="$4" |
| 66 | |
| 67 | case "${card}" in |
| 68 | [sS][dD][hH][cC]) |
| 69 | PADDING=1025 |
| 70 | ;; |
| 71 | [sS][dD]) |
| 72 | PADDING=1 |
| 73 | ;; |
| 74 | *) |
| 75 | USAGE "${card} is an unknown card type" |
| 76 | esac |
| 77 | |
| 78 | # the amount of space that must remain unused at the end of the disk |
| 79 | REAR_SECTORS=$(( $QI_ALLOCATION + $QI_INITIAL + $SIG + $PADDING )) |
| 80 | |
| 81 | # validate parameters |
| 82 | [ -b "${dev}" ] || dev="/dev/${dev}" |
| 83 | [ -b "${dev}" ] || USAGE "${dev} is not a valid block device" |
| 84 | [ X"${dev}" = X"${dev%%[0-9]}" ] || USAGE "${dev} is a partition, please use device: perhaps ${dev%%[0-9]}" |
| 85 | |
| 86 | echo "Checking for mounted partitions..." |
| 87 | grep "${dev}" /proc/mounts && USAGE "partitions on ${dev} are mounted, please unmount them" |
| 88 | [ -e "${qi}" ] || USAGE "bootloader file: ${qi} does not exist" |
| 89 | |
| 90 | # get size of device |
| 91 | bytes=$(echo p | fdisk "${dev}" 2>&1 | sed '/^Disk.*, \([0-9]*\) bytes/s//\1/p;d') |
| 92 | SECTORS=$(($bytes / 512)) |
| 93 | |
| 94 | [ -z "$SECTORS" ] && USAGE "could not find size for ${dev}" |
| 95 | [ "$SECTORS" -le 0 ] && USAGE "invalid size: '${SECTORS}' for ${dev}" |
| 96 | |
| 97 | echo "${dev} is $SECTORS 512-byte blocks" |
| 98 | |
| 99 | |
| 100 | # Partition and format a disk (or SD card) |
| 101 | # Parameters to format function are: |
| 102 | # |
| 103 | # device -> device to partition e.g. /dev/sdX |
| 104 | # |
| 105 | # Partition 1 parameters: |
| 106 | # |
| 107 | # label -> file system volume label e.g. rootfs |
| 108 | # sizeMB -> size of the partition in MB e.g. 256 |
| 109 | # fstype -> filesystem type e.g. ext2, ext3, vfat (look at /sbin/mkfs.* for others) |
| 110 | # |
| 111 | # Notes: 1. Repeat "label, sizeMB, fstype" for partitions 2..4 |
| 112 | # 2. Partitions 2..4 are optional |
| 113 | # 3. Do not repeat device parameter |
| 114 | # 4. To skip a partition use: 'null 0 none' for that partition |
| 115 | |
| 116 | FORMAT() |
| 117 | { |
| 118 | local device label sizeMB fstype p partition flag skip |
| 119 | device="$1"; shift |
| 120 | ( |
| 121 | p=0 |
| 122 | flag=0 |
| 123 | echo o |
| 124 | while [ $# -gt 0 ] |
| 125 | do |
| 126 | label="$1"; shift |
| 127 | sizeMB="$1"; shift |
| 128 | fstype="$1"; shift |
| 129 | p=$((${p} + 1)) |
| 130 | skip=NO |
| 131 | [ ${sizeMB} -le 0 ] && skip=YES |
| 132 | case "${label}" in |
| 133 | [nN][uU][lL][lL]) |
| 134 | skip=YES |
| 135 | ;; |
| 136 | *) |
| 137 | ;; |
| 138 | esac |
| 139 | case "${skip}" in |
| 140 | [yY][eE][sS]|[yY]) |
| 141 | ;; |
| 142 | *) |
| 143 | echo n |
| 144 | echo p |
| 145 | echo ${p} |
| 146 | echo |
| 147 | echo +${sizeMB}M |
| 148 | case "${fstype}" in |
| 149 | [vV][fF][aA][tT]|[mM][sS][dD][oO][sS]) |
| 150 | echo t |
| 151 | # fdisk is "helpful" & will auto select partition if there is only one |
| 152 | # so do not output partition number if this is the first partition |
| 153 | [ "${flag}" -eq 1 ] && echo ${p} |
| 154 | echo 0b |
| 155 | ;; |
| 156 | *) |
| 157 | ;; |
| 158 | esac |
| 159 | flag=1 |
| 160 | ;; |
| 161 | esac |
| 162 | done |
| 163 | echo p |
| 164 | echo w |
| 165 | echo q |
| 166 | ) | fdisk "${device}" |
| 167 | p=0 |
| 168 | while [ $# -gt 0 ] |
| 169 | do |
| 170 | label="$1"; shift |
| 171 | sizeMB="$1"; shift |
| 172 | fstype="$1"; shift |
| 173 | p=$((${p} + 1)) |
| 174 | partition="${dev}${p}" |
| 175 | skip=NO |
| 176 | [ ${sizeMB} -eq 0 ] && skip=YES |
| 177 | case "${label}" in |
| 178 | [nN][uU][lL][lL]) |
| 179 | skip=YES |
| 180 | ;; |
| 181 | esac |
| 182 | |
| 183 | case "${skip}" in |
| 184 | [yY][eE][sS]|[yY]) |
| 185 | echo "Skipping: ${partition}" |
| 186 | ;; |
| 187 | *) |
| 188 | echo "Formatting: ${partition} -> ${fstype}[${sizeMB}MB]" |
| 189 | case "${fstype}" in |
| 190 | [vV][fF][aA][tT]|[mM][sS][dD][oO][sS]) |
| 191 | mkfs.${fstype} -n "${label}" "${partition}" |
| 192 | ;; |
| 193 | *) |
| 194 | mkfs.${fstype} -L "${label}" "${partition}" |
| 195 | ;; |
| 196 | esac |
| 197 | ;; |
| 198 | esac |
| 199 | done |
| 200 | } |
| 201 | |
| 202 | # format the disk |
| 203 | case "${partition}" in |
| 204 | |
| 205 | # this case also hadles the default case (i.e. empty string: "") |
| 206 | [vV][fF][aA][tT]|"") |
| 207 | EXT3_TOTAL_SECTORS=$(( $EXT3_ROOTFS_SECTORS + $EXT3_BACKUP_FS_SECTORS )) |
| 208 | FAT_SECTORS=$(( $SECTORS - $EXT3_TOTAL_SECTORS - $REAR_SECTORS )) |
| 209 | FAT_MB=$(( $FAT_SECTORS / 2048 )) |
| 210 | EXT3_ROOTFS_MB=$(( ${EXT3_ROOTFS_SECTORS} / 2048 )) |
| 211 | EXT3_BACKUP_FS_MB=$(( ${EXT3_BACKUP_FS_SECTORS} / 2048 )) |
| 212 | |
| 213 | echo Creating VFAT partition of ${FAT_MB} MB |
| 214 | echo Creating Linux partition of ${EXT3_ROOTFS_MB} MB |
| 215 | echo Creating backup Linux partition of ${EXT3_BACKUP_FS_MB} MB |
| 216 | FORMAT "${dev}" \ |
| 217 | main-vfat "${FAT_MB}" vfat \ |
| 218 | rootfs "${EXT3_ROOTFS_MB}" ext3 \ |
| 219 | backupfs "${EXT3_BACKUP_FS_MB}" ext3 |
| 220 | ;; |
| 221 | |
| 222 | # decode partition or partition list |
| 223 | *,*|100|[1-9][0-9]|[1-9]) |
| 224 | arg="${partition}," |
| 225 | for v in 1 2 3 4 |
| 226 | do |
| 227 | eval n${v}="\${arg%%,*}" |
| 228 | eval n${v}="\${n${v}:-0}" |
| 229 | arg="${arg#*,}," |
| 230 | done |
| 231 | total=$(( ${n1} + ${n2} + ${n3} + ${n4} )) |
| 232 | echo Percentage of disk partitioned = ${total}% |
| 233 | [ ${total} -gt 100 -o ${total} -lt 1 ] && USAGE partition: "'${partition}' => ${total}% outside [1..100]" |
| 234 | |
| 235 | EXT3_TOTAL_SECTORS=$(( $SECTORS - $REAR_SECTORS )) |
| 236 | EXT3_ROOTFS1_SECTORS=$(( $EXT3_TOTAL_SECTORS * $n1 / 100 )) |
| 237 | EXT3_ROOTFS2_SECTORS=$(( $EXT3_TOTAL_SECTORS * $n2 / 100 )) |
| 238 | EXT3_ROOTFS3_SECTORS=$(( $EXT3_TOTAL_SECTORS * $n3 / 100 )) |
| 239 | EXT3_ROOTFS4_SECTORS=$(( $EXT3_TOTAL_SECTORS * $n4 / 100 )) |
| 240 | EXT3_ROOTFS1_MB=$(( ${EXT3_ROOTFS1_SECTORS} / 2048 )) |
| 241 | EXT3_ROOTFS2_MB=$(( ${EXT3_ROOTFS2_SECTORS} / 2048 )) |
| 242 | EXT3_ROOTFS3_MB=$(( ${EXT3_ROOTFS3_SECTORS} / 2048 )) |
| 243 | EXT3_ROOTFS4_MB=$(( ${EXT3_ROOTFS4_SECTORS} / 2048 )) |
| 244 | |
| 245 | echo Creating Linux partition 1 of ${EXT3_ROOTFS1_MB} MB |
| 246 | echo Creating Linux partition 2 of ${EXT3_ROOTFS2_MB} MB |
| 247 | echo Creating Linux partition 3 of ${EXT3_ROOTFS3_MB} MB |
| 248 | echo Creating Linux partition 4 of ${EXT3_ROOTFS4_MB} MB |
| 249 | |
| 250 | FORMAT "${dev}" \ |
| 251 | rootfs1 "${EXT3_ROOTFS1_MB}" ext3 \ |
| 252 | rootfs2 "${EXT3_ROOTFS2_MB}" ext3 \ |
| 253 | rootfs3 "${EXT3_ROOTFS3_MB}" ext3 \ |
| 254 | rootfs4 "${EXT3_ROOTFS4_MB}" ext3 |
| 255 | ;; |
| 256 | |
| 257 | [Nn]*) |
| 258 | # do not format |
| 259 | ;; |
| 260 | |
| 261 | *) |
| 262 | USAGE "'${partition}' is an unknown partition config" |
| 263 | ;; |
| 264 | esac |
| 265 | |
| 266 | |
| 267 | # copy the full bootloader image to the right place after the |
| 268 | # partitioned area |
| 269 | echo |
| 270 | echo Installing Qi bootloader from: ${qi} |
| 271 | |
| 272 | dd if="${qi}" of="${dev}" bs=512 count=512 \ |
| 273 | seek=$(( $SECTORS - $REAR_SECTORS )) |
| 274 | dd if="${qi}" of="${dev}" bs=512 \ |
| 275 | seek=$(( $SECTORS - $REAR_SECTORS + $QI_ALLOCATION )) \ |
| 276 | count=$QI_INITIAL |
| 277 | dd if=/dev/zero of="${dev}" bs=512 \ |
| 278 | seek=$(( $SECTORS - $REAR_SECTORS + $QI_ALLOCATION + $QI_INITIAL )) \ |
| 279 | count=$(( $SIG + $PADDING )) |
| 280 | |
| 281 | # done |
| 282 | echo |
| 283 | echo "**** completed" |
| 284 | |
