target/linux/realview/image/gen_realview_sdcard_img.sh

   1 #!/usr/bin/env bash
   2
   3 set -x
   4 [ $# -eq 3 ] || {
   5     echo "SYNTAX: $0 <file> <rootfs image> <rootfs size>"
   6     exit 1
   7 }
   8
   9 OUTPUT="$1"
  10 ROOTFS="$2"
  11 ROOTFSSIZE="$3"
  12
  13 head=4
  14 sect=63
  15
  16 set `ptgen -o $OUTPUT -h $head -s $sect -l 4096 -t 83 -p ${ROOTFSSIZE}M`
  17
  18 ROOTFSOFFSET="$(($1 / 512))"
  19 ROOTFSSIZE="$(($2 / 512))"
  20
  21 dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc
  22
  23