| 1 | #!/bin/bash␊ |
| 2 | ␊ |
| 3 | echo "==============================================="␊ |
| 4 | echo "CheckWindowsDiskSignature: Is Windows installed?"␊ |
| 5 | echo "************************************************"␊ |
| 6 | ␊ |
| 7 | # this script is passed the targetdisk to work from, for example /dev/disk0␊ |
| 8 | # It then checks the disk sector for a 4-byte Windows disk signature␊ |
| 9 | # if one is found then it exits with 1, otherwise it exits with 0␊ |
| 10 | ␊ |
| 11 | if [ "$#" -eq 1 ]; then␊ |
| 12 | ␉targetDisk="$1"␊ |
| 13 | ␉echo "DEBUG: passed argument for targetDisk = $targetDisk"␊ |
| 14 | else␊ |
| 15 | ␉echo "Error - wrong number of values passed - Exiting"␊ |
| 16 | ␉exit 9␊ |
| 17 | fi␊ |
| 18 | ␊ |
| 19 | disksignature=$( dd 2>/dev/null if="$targetDisk" count=1 | dd 2>/dev/null count=4 bs=1 skip=440 | perl -ne '@a=split"";for(@a){printf"%02x",ord}' )␊ |
| 20 | ␊ |
| 21 | echo "${disksignature}"␊ |
| 22 | ␊ |
| 23 | if [ "${disksignature}" = "00000000" ]; then␊ |
| 24 | ␉echo "No Windows installation detected."␊ |
| 25 | ␉echo "-----------------------------------------------"␊ |
| 26 | ␉echo ""␊ |
| 27 | ␉exit 0␊ |
| 28 | else␊ |
| 29 | ␉echo "Detected an existing Windows installation"␊ |
| 30 | ␉echo "-----------------------------------------------"␊ |
| 31 | ␉echo ""␊ |
| 32 | ␉exit 1␊ |
| 33 | fi␊ |
| 34 | ␊ |
| 35 | echo "-----------------------------------------------"␊ |
| 36 | echo ""␊ |
| 37 | ␊ |
| 38 | exit 0 |
