target/linux/gemini/image/dns313_gen_hdd_img.sh

   1 #!/bin/sh
   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 one empty partitions followed by the swap partition, then the
  19 # boot partition with the ./boot/zImage and then the rootfs partition.
  20 # The swap partition with type 82 is 128 MB since the DNS-313 has 64 MB of
  21 # memory so we assign twice of that as swap.
  22 # The boot partition must always be the third partition.
  23 # The user should use the first (blank) partition for user data storage,
  24 # this will typically be named /dev/sda1
  25 set $(ptgen -o $OUTPUT -h $head -s $sect -n -t 83 -p 0 -t 82 -p 128M -t 83 -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M)
  26
  27 # Swapoffset and swapsize will be $1 and $2
  28 BOOTOFFSET="$(($3 / 512))"
  29 BOOTSIZE="$(($4 / 512))"
  30 ROOTFSOFFSET="$(($5 / 512))"
  31 ROOTFSSIZE="$(($6 / 512))"
  32
  33 dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
  34 dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc