target/linux/gemini/image/dns313_gen_hdd_img.sh

   1 #!/usr/bin/env bash
   2
   3 set -x
   4 [ $# -eq 5 ] || {
   5         echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size>"
   6         exit 1
   7 }
   8
   9 OUTPUT="$1"
  10 BOOTFS="$2"
  11 ROOTFS="$3"
  12 BOOTFSSIZE="$4"
  13 ROOTFSSIZE="$5"
  14
  15 head=4
  16 sect=63
  17
  18 # Create two empty partitions followed by the boot partition with
  19 # the ./boot/zImage and then the rootfs partition.
  20 set `ptgen -o $OUTPUT -h $head -s $sect -t 83 -n -p 0 -p 0 -p ${BOOTFSSIZE}M -p ${ROOTFSSIZE}M`
  21
  22 BOOTOFFSET="$(($1 / 512))"
  23 BOOTSIZE="$(($2 / 512))"
  24 ROOTFSOFFSET="$(($3 / 512))"
  25 ROOTFSSIZE="$(($4 / 512))"
  26
  27 dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
  28 dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc