| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | #!/bin/sh |
| 2 | |
| 3 | if [ $# != 2 ]; then |
| 4 | echo not enough args |
| 5 | echo usage: $0 file device |
| 6 | exit 1 |
| 7 | fi |
| 8 | |
| 9 | if [ ! -f $1 ]; then |
| 10 | echo input file does not exist |
| 11 | exit 1 |
| 12 | fi |
| 13 | |
| 14 | if [ ! -b $2 ]; then |
| 15 | echo output device does not exist |
| 16 | exit 1 |
| 17 | fi |
| 18 | |
| 19 | UNAME=`uname` |
| 20 | |
| 21 | case `uname` in |
| 22 | Darwin) |
| 23 | set -v |
| 24 | sudo diskutil unmount $2 || exit 1 |
| 25 | sudo dd if=$1 of=$2 bs=2048 seek=1 || exit 1 |
| 26 | sudo diskutil eject $2 || exit 1 |
| 27 | ;; |
| 28 | Linux) |
| 29 | set -v |
| 30 | sudo umount $2 |
| 31 | sudo dd if=$1 of=$2 bs=2048 seek=1 || exit 1 |
| 32 | sudo sync |
| 33 | ;; |
| 34 | esac |