scripts/mkbootdisk

   1 #!/bin/sh
   2
   3 set -e
   4
   5 kernel="$1"
   6 mnt_dir="/tmp/mkbootdisk/mnt"
   7 img_file="/tmp/mkbootdisk/boot.img"
   8
   9 [[ -f "$kernel" ]] || { echo need kernel; exit 1; }
  10
  11 mkdir -p $mnt_dir
  12
  13 [[ -d "$mnt_dir" ]] || { echo mount dir err; exit 1; }
  14
  15 dd < /dev/zero > $img_file bs=1M count=10
  16 mkfs -t vfat $img_file
  17
  18 mount -o loop $img_file $mnt_dir
  19
  20 cp "$kernel" $mnt_dir/kernel
  21
  22 cat <<EOF > $mnt_dir/SYSLINUX.CFG
  23 DEFAULT kernel
  24 APPEND console=ttyS0
  25 EOF
  26
  27 umount $mnt_dir
  28
  29 syslinux $img_file
  30