target/linux/d1/image/gen_d1_sdcard_img.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0-only
   3 #
   4 # Copyright (C) 2013 OpenWrt.org
   5
   6 set -ex
   7 [ $# -eq 6 ] || {
   8     echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size> <u-boot image>"
   9     exit 1
  10 }
  11
  12 OUTPUT="$1"
  13 BOOTFS="$2"
  14 ROOTFS="$3"
  15 BOOTFSSIZE="$4"
  16 ROOTFSSIZE="$5"
  17 UBOOT="$6"
  18
  19 ROOTFSPTOFFSET=$(($BOOTFSSIZE + 20 + 1))
  20
  21 head=4
  22 sect=63
  23
  24 set $(ptgen -o $OUTPUT -h $head -s $sect -l 1024 -t c -p ${BOOTFSSIZE}M@20M -t 83 -p ${ROOTFSSIZE}M@${ROOTFSPTOFFSET}M)
  25
  26 BOOTOFFSET="$(($1 / 512))"
  27 BOOTSIZE="$(($2 / 512))"
  28 ROOTFSOFFSET="$(($3 / 512))"
  29 ROOTFSSIZE="$(($4 / 512))"
  30
  31 dd bs=512 if="$UBOOT" of="$OUTPUT" seek=256 conv=notrunc
  32 dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
  33 dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc