| ␉"$scriptDir"InstallLog.sh "${installerVolume}" "LineBreak"␊ |
| ␉"$scriptDir"InstallLog.sh "${installerVolume}" "Checking for previous chameleon installations on ${targetDisk#/dev/}"␊ |
| ␊ |
| ␉# If a GPT is used then we are going to have the check the EFI system partition␊ |
| ␉# for the stage 2 'boot' file so lets mount the EFI system partition.␊ |
| ␉mountESP␊ |
| ␉␊ |
| ␉# Check the disk's MBR for existing stage 0 boot code (code from CheckDiskMicrocode.sh script)␊ |
| ␉stage0type=$( dd 2>/dev/null if="$targetDisk" count=3 bs=1 skip=105 | xxd | awk '{print $2$3}' )␊ |
| ␉if [ "${stage0type}" == "0a803c" ] || [ "${stage0type}" == "ee7505" ] || [ "${stage0type}" == "742b80" ]; then␊ |
| ␉␉(( stagesFound++ ))␊ |
| ␉␉stage0type=2␊ |
| ␉elif [ "${stage0type}" == "0b807c" ]; then␊ |
| ␉␉(( stagesFound++ ))␊ |
| ␉␉stage0type=1␊ |
| ␉fi␊ |
| ␉␊ |
| ␉#Scan all partitions for Chameleon code␊ |
| ␉for (( i=1; i <= $numSlices; i++ ));␊ |
| ␉do␊ |
| ␉␉stagesFound=0␊ |
| ␉␉if [ $stage0type == 1 ] || [ $stage0type == 2 ]; then␊ |
| ␉␉␉stagesFound=1␊ |
| ␉␉else␊ |
| ␉␉␉stagesFound=0␊ |
| ␉␉fi␊ |
| ␉␉stage1Existence="NONE"␊ |
| ␉␉stage2Existence=0␊ |
| ␉␉targetDiskRaw=$targetDiskRawNoSlice$i␊ |
|
| ␉␉␉␉␉␉# /Volumes/EFI needs unmounting before changing partition boot sector␊ |
| ␉␉␉␉␉␉if [ $i == 1 ]; then␊ |
| ␉␉␉␉␉␉␉umount /Volumes/EFI␊ |
| ␉␉␉␉␉␉else␊ |
| ␉␉␉␉␉␉␉diskutil unmount "${targetDisk}"s${i}␊ |
| ␉␉␉␉␉␉fi␊ |
| ␉␉␉␉␉␉␉␉␉␉␉␉␊ |
| ␉␉␉␉␉␉␉if [ "$( fstyp "${targetDisk}"s1 | grep hfs )" ]; then␊ |
| ␉␉␉␉␉␉␉␉#echo "DEBUG: HFS - changing byte 1FEh to 00"␊ |
| ␉␉␉␉␉␉␉␉dd if=${targetDisk}s${i} count=2 bs=512 of=originalBootSector␊ |
| ␉␉␉␉␉␉␉␉cp originalBootSector newBootSector␊ |
| ␉␉␉␉␉␉␉␉dd if="patch" of=newBootSector bs=1 count=1 seek=510 conv=notrunc␊ |
| ␉␉␉␉␉␉␉␉dd if=newBootSector of=${targetDisk}s${i} count=2 bs=510␊ |
| ␉␉␉␉␉␉␉fi␊ |
| ␉␉␉␉␉␉␉if [ "$( fstyp "${targetDisk}"s1 | grep msdos )" ]; then␊ |
| ␉␉␉␉␉␉␉␉#echo "DEBUG: MSDOS - changing byte 1FEh to 00"␊ |
| ␉␉␉␉␉␉␉␉dd if=${targetDisk}s${i} count=1 bs=512 of=/tmp/originalBootSector␊ |
| ␉␉␉␉␉␉␉␉cp /tmp/originalBootSector /tmp/newBootSector␊ |
| ␉␉␉␉␉␉␉␉dd if="$scriptDir/patch" of=/tmp/newBootSector bs=1 count=1 seek=510 conv=notrunc␊ |
| ␉␉␉␉␉␉␉␉dd if=/tmp/newBootSector of=${targetDisk}s${i} count=1 bs=512␊ |
| ␉␉␉␉␉␉␉fi␊ |
| ␉␉␉␉␉␉if [ "$( fstyp "${targetDisk}"s${i} | grep hfs )" ]; then␊ |
| ␉␉␉␉␉␉␉#echo "DEBUG: HFS - changing byte 1FEh to 00"␊ |
| ␉␉␉␉␉␉␉dd if=${targetDisk}s${i} count=2 bs=512 of=originalBootSector␊ |
| ␉␉␉␉␉␉␉cp originalBootSector newBootSector␊ |
| ␉␉␉␉␉␉␉dd if="patch" of=newBootSector bs=1 count=1 seek=510 conv=notrunc␊ |
| ␉␉␉␉␉␉␉dd if=newBootSector of=${targetDisk}s${i} count=2 bs=510␊ |
| ␉␉␉␉␉␉fi␊ |
| ␉␉␉␉␉␉if [ "$( fstyp "${targetDisk}"s${i} | grep msdos )" ]; then␊ |
| ␉␉␉␉␉␉␉#echo "DEBUG: MSDOS - changing byte 1FEh to 00"␊ |
| ␉␉␉␉␉␉␉dd if=${targetDisk}s${i} count=1 bs=512 of=/tmp/originalBootSector␊ |
| ␉␉␉␉␉␉␉cp /tmp/originalBootSector /tmp/newBootSector␊ |
| ␉␉␉␉␉␉␉dd if="$scriptDir/patch" of=/tmp/newBootSector bs=1 count=1 seek=510 conv=notrunc␊ |
| ␉␉␉␉␉␉␉dd if=/tmp/newBootSector of=${targetDisk}s${i} count=1 bs=512␊ |
| ␉␉␉␉␉␉fi␊ |
| ␉␉␉␉␉␉␊ |
| ␉␉␉␉␉␉␉# /Volumes/EFI needs re-mounting so EFI/postinstall script can use it.␊ |
| ␉␉␉␉␉␉␉# Don't check for a GPT as wouldn't have got here if it wasn't␊ |
| ␉␉␉␉␉␉# /Volumes/EFI needs re-mounting so EFI/postinstall script can use it.␊ |
| ␉␉␉␉␉␉# Don't check for a GPT as wouldn't have got here if it wasn't␊ |
| ␉␉␉␉␉␉if [ $i == 1 ]; then␊ |
| ␉␉␉␉␉␉␉"$scriptDir"MountESP.sh "${targetDisk}" "${installerVolume}" "${scriptDir}"␊ |
| ␉␉␉␉␉␉else␊ |
| ␉␉␉␉␉␉␉diskutil mount "${targetDisk}"s${i}␊ |
| ␉␉␉␉␉␉fi␊ |
| ␉␉␉␉␉␉␊ |
| ␉␉␉␉␉else␊ |
