scripts/create-image.sh

   1 #!/usr/bin/env bash
   2
   3 filesystem=ext2
   4
   5 while getopts "f:i" option
   6 do
   7         case $option in
   8                 f)
   9                 filesystem=$OPTARG
  10                 ;;
  11                 i)
  12                 initramfs=1
  13                 ;;
  14                 *)
  15                 printf "Option not recognized\n"
  16                 exit 1
  17                 ;;
  18         esac
  19 done
  20 shift $(($OPTIND - 1))
  21
  22 if [ $(id -u) -ne 0 ];then
  23         printf "Installation is only possible as root\n"
  24         exit 1
  25 fi
  26
  27 printf "Checking if parted is installed"
  28 parted=$(which parted)
  29
  30 if [ ! -z $parted -a -x $parted ];then
  31         printf "...okay\n"
  32 else
  33         printf "...failed\n"
  34         exit 1
  35 fi
  36
  37 printf "Checking if qemu-img is installed"
  38 qimg=$(which qemu-img)
  39
  40 if [ ! -z $qimg -a -x $qimg ];then
  41         printf "...okay\n"
  42 else
  43         printf "...failed\n"
  44         exit 1
  45 fi
  46
  47 if [ -z $1 ];then
  48         printf "Please give the name of the image file\n"
  49         exit 1
  50 fi
  51
  52 if [ -z $initramfs ];then
  53         if [ -z $2 ];then
  54                 printf "Please give the name of the openadk archive file\n"
  55                 exit 1
  56         fi
  57 else
  58         if [ -z $2 ];then
  59                 printf "Please give the full path prefix to kernel/initramfs\n"
  60                 exit 1
  61         fi
  62 fi
  63
  64
  65 printf "Generate qemu image\n"
  66 $qimg create -f raw $1 512M >/dev/null
  67
  68 printf "Creating filesystem $filesystem\n"
  69
  70 printf "Create partition and filesystem\n"
  71 $parted -s $1 mklabel msdos
  72 $parted -s $1 mkpart primary ext2 0 100%
  73 $parted -s $1 set 1 boot on
  74
  75 dd if=$1 of=mbr bs=16384 count=1 2>/dev/null
  76 dd if=$1 skip=16384 of=$1.new 2>/dev/null
  77
  78 if [ "$filesystem" = "ext2" -o "$filesystem" = "ext3" -o "$filesystem" = "ext4" ];then
  79         mkfsopts=-F
  80 fi
  81
  82 mkfs.$filesystem $mkfsopts ${1}.new >/dev/null
  83
  84 if [ $? -eq 0 ];then
  85         printf "Successfully created partition\n"
  86         #$parted $1 print
  87 else
  88         printf "Partition creation failed, Exiting.\n"
  89         exit 1
  90 fi
  91
  92 cat mbr ${1}.new > $1
  93 rm ${1}.new
  94 rm mbr
  95
  96 tmp=$(mktemp -d)
  97
  98 mount -o loop,offset=16384 -t $filesystem $1 $tmp
  99
 100 if [ -z $initramfs ];then
 101         printf "Extracting install archive\n"
 102         tar -C $tmp -xzpf $2
 103         printf "Fixing permissions\n"
 104         chmod 1777 $tmp/tmp
 105         chmod 4755 $tmp/bin/busybox
 106 else
 107         printf "Copying kernel/initramfs\n"
 108         mkdir $tmp/boot $tmp/dev
 109         cp $2-kernel $tmp/boot/kernel
 110         cp $2-initramfs $tmp/boot/initramfs
 111 fi
 112
 113 printf "Creating device nodes\n"
 114 mknod -m 666 $tmp/dev/zero c 1 5
 115 mknod -m 666 $tmp/dev/null c 1 3
 116 mknod -m 622 $tmp/dev/console c 5 1
 117 mknod -m 666 $tmp/dev/tty c 5 0
 118 mknod -m 666 $tmp/dev/tty0 c 4 0
 119 #mknod -m 660 $tmp/dev/hda b 3 0
 120 #mknod -m 660 $tmp/dev/hda1 b 3 1
 121 mknod -m 666 $tmp/dev/ttyS0 c 4 64
 122
 123 umount $tmp
 124
 125 printf "Successfully installed.\n"
 126 printf "Be sure $1 is writable for the user which use qemu\n"
 127 exit 0