| 1 | #!/bin/bash␊ |
| 2 | ␊ |
| 3 | echo "==============================================="␊ |
| 4 | echo "CheckFatType: Do we have FAT16 or FAT32?"␊ |
| 5 | echo "****************************************"␊ |
| 6 | ␊ |
| 7 | # Looks for the following in the partition boot sector␊ |
| 8 | # Byte number 19 to see if it's either 00 or 02␊ |
| 9 | # Byte number 22 to see if it's either F8 or F0␊ |
| 10 | # Byte number 25 to see if it's either 3F or 20␊ |
| 11 | #␊ |
| 12 | # Exit with value 1 for FAT16, 2 for FAT32 ␊ |
| 13 | # Exit with value 0 if nothing is found - this shouldn't happen.?␊ |
| 14 | ␊ |
| 15 | # Receives targetDeviceRaw: for example, /dev/rdisk0s2.␊ |
| 16 | # Receives targetVolume: Volume to install to.␊ |
| 17 | # Receives scriptDir: The location of the main script dir.␊ |
| 18 | ␊ |
| 19 | ␊ |
| 20 | if [ "$#" -eq 3 ]; then␊ |
| 21 | ␉targetDeviceRaw="$1"␊ |
| 22 | ␉targetVolume="$2"␊ |
| 23 | ␉scriptDir="$3"␊ |
| 24 | ␉echo "DEBUG: passed argument = $targetDeviceRaw"␊ |
| 25 | ␉echo "DEBUG: passed argument for targetVolume = $targetVolume"␊ |
| 26 | ␉echo "DEBUG: passed argument for scriptDir = $scriptDir"␊ |
| 27 | else␊ |
| 28 | ␉echo "Error - wrong number of values passed"␊ |
| 29 | ␉exit 9␊ |
| 30 | fi␊ |
| 31 | ␊ |
| 32 | ␊ |
| 33 | partitionBootSector=$( dd 2>/dev/null if="$targetDeviceRaw" count=1 | perl -ne '@a=split"";for(@a){printf"%02x",ord}' )␊ |
| 34 | if [ "${partitionBootSector:36:2}" == "00" ] && [ "${partitionBootSector:42:2}" == "f8" ] && [ "${partitionBootSector:48:2}" == "3f" ]; then␊ |
| 35 | ␉#echo "DEBUG: Found a FAT32 device formatted by Windows Explorer"␊ |
| 36 | ␉"$scriptDir"InstallLog.sh "${targetVolume}" "${targetDeviceRaw} is on a FAT32 volume formatted by Windows Explorer"␊ |
| 37 | ␉exit 2␊ |
| 38 | fi␊ |
| 39 | if [ "${partitionBootSector:36:2}" == "02" ] && [ "${partitionBootSector:42:2}" == "f8" ] && [ "${partitionBootSector:48:2}" == "3f" ]; then␊ |
| 40 | ␉#echo "DEBUG: Found a FAT16 device formatted by Windows Explorer"␊ |
| 41 | ␉"$scriptDir"InstallLog.sh "${targetVolume}" "${targetDeviceRaw} is on a FAT16 volume formatted by Windows Explorer"␊ |
| 42 | ␉exit 1␊ |
| 43 | fi␊ |
| 44 | if [ "${partitionBootSector:36:2}" == "00" ] && [ "${partitionBootSector:42:2}" == "f0" ] && [ "${partitionBootSector:48:2}" == "20" ]; then␊ |
| 45 | ␉#echo "DEBUG: Found a FAT32 device formatted by OS X Snow Leopard Disk Utility"␊ |
| 46 | ␉"$scriptDir"InstallLog.sh "${targetVolume}" "${targetDeviceRaw} is on a FAT32 volume formatted by OS X Snow Leopard Disk Utility"␊ |
| 47 | ␉exit 2␊ |
| 48 | fi␊ |
| 49 | if [ "${partitionBootSector:36:2}" == "02" ] && [ "${partitionBootSector:42:2}" == "f0" ] && [ "${partitionBootSector:48:2}" == "20" ]; then␊ |
| 50 | ␉#echo "DEBUG: Found a FAT16 device formatted by OS X Snow Leopard Disk Utility"␊ |
| 51 | ␉"$scriptDir"InstallLog.sh "${targetVolume}" "${targetDeviceRaw} is on a FAT16 volume formatted by OS X Snow Leopard Disk Utility"␊ |
| 52 | ␉exit 1␊ |
| 53 | fi␊ |
| 54 | if [ "${partitionBootSector:36:2}" == "00" ] && [ "${partitionBootSector:42:2}" == "f8" ] && [ "${partitionBootSector:48:2}" == "20" ]; then␊ |
| 55 | ␉#echo "DEBUG: Found a FAT32 device formatted by OS X Lion Disk Utility"␊ |
| 56 | ␉"$scriptDir"InstallLog.sh "${targetVolume}" "${targetDeviceRaw} is on a FAT32 volume formatted by OS X Lion Disk Utility"␊ |
| 57 | ␉exit 2␊ |
| 58 | fi␊ |
| 59 | if [ "${partitionBootSector:36:2}" == "02" ] && [ "${partitionBootSector:42:2}" == "f8" ] && [ "${partitionBootSector:48:2}" == "20" ]; then␊ |
| 60 | ␉#echo "DEBUG: Found a FAT16 device formatted by OS X Lion Disk Utility"␊ |
| 61 | ␉"$scriptDir"InstallLog.sh "${targetVolume}" "${targetDeviceRaw} is on a FAT16 volume formatted by OS X Lion Disk Utility"␊ |
| 62 | ␉exit 1␊ |
| 63 | fi␊ |
| 64 | ␊ |
| 65 | exit 0 |
