| 1 | #!/bin/bash␊ |
| 2 | ␊ |
| 3 | echo "==============================================="␊ |
| 4 | echo "Check Previous Chameleon: Will there be problems?"␊ |
| 5 | echo "***********************************************"␊ |
| 6 | ␊ |
| 7 | # Checks for another existing Chameleon installation on the same disk␊ |
| 8 | # and tries to make sure the user doesn't end up with an un-bootable␊ |
| 9 | # system due to having installed Chameleon previously elsewhere.␊ |
| 10 | ␊ |
| 11 | # Receives targetDisk: for example, /dev/disk3.␊ |
| 12 | # Receives targetDeviceRaw: for example, /dev/rdisk3s1.␊ |
| 13 | # Receives targetDevice: Stores device number, for example /dev/disk2s1.␊ |
| 14 | # Receives installerVolume: Volume to write the installer log to.␊ |
| 15 | # Receives partitiontable: for example, GUID_partition_scheme␊ |
| 16 | # Receives scriptDir: The location of the main script dir.␊ |
| 17 | ␊ |
| 18 | if [ "$#" -eq 6 ]; then␊ |
| 19 | ␉targetDisk="$1"␊ |
| 20 | ␉targetDeviceRaw="$2"␊ |
| 21 | ␉targetDevice="$3"␊ |
| 22 | ␉installerVolume="$4"␊ |
| 23 | ␉partitiontable="$5"␊ |
| 24 | ␉scriptDir="$6"␊ |
| 25 | ␉echo "DEBUG: passed argument for targetDisk = $targetDisk"␊ |
| 26 | ␉echo "DEBUG: passed argument for targetDeviceRaw = $targetDeviceRaw"␊ |
| 27 | ␉echo "DEBUG: passed argument for targetDevice = $targetDevice"␊ |
| 28 | ␉echo "DEBUG: passed argument for installerVolume = $installerVolume"␊ |
| 29 | ␉echo "DEBUG: passed argument for partitiontable = $partitiontable"␊ |
| 30 | ␉echo "DEBUG: passed argument for scriptDir = $scriptDir"␊ |
| 31 | else␊ |
| 32 | ␉echo "Error - wrong number of values passed"␊ |
| 33 | ␉exit 9␊ |
| 34 | fi␊ |
| 35 | ␊ |
| 36 | ␊ |
| 37 | # Check for existing Chameleon installations on a different␊ |
| 38 | # partition of the same target disk.␊ |
| 39 | #echo "DEBUG: Checking for existing Chameleon installations on ${targetDisk#/dev/}..."␊ |
| 40 | ␊ |
| 41 | sliceNumber=$( echo ${targetDeviceRaw#*disk*s} )␊ |
| 42 | # strip slice from end␊ |
| 43 | targetDiskRawNoSlice=$( echo ${targetDeviceRaw%$sliceNumber} )␊ |
| 44 | ␊ |
| 45 | # Are there any other partitions on the disk?␊ |
| 46 | # How many actual partitions are there?␊ |
| 47 | numSlices=$(( $( diskutil list | grep $( echo ${targetDisk#/dev/} ) | sed -n '$=' ) -2 ))␊ |
| 48 | ␊ |
| 49 | # Only check the disk for Chameleon installations if there is more than one partition.␊ |
| 50 | if [ $numSlices -gt 1 ]; then ␊ |
| 51 | ␊ |
| 52 | ␉# If a GPT is used then we are going to have the check the EFI system partition␊ |
| 53 | ␉# for the stage 2 'boot' file. As this script is called from the Main EFI␊ |
| 54 | ␉# postinstall script, so lets mount the EFI system partition here instead.␊ |
| 55 | ␊ |
| 56 | ␉if [ "${partitiontable}" = "GUID_partition_scheme" ]; then␊ |
| 57 | ␊ |
| 58 | ␉␉# Unmount ALL mounted volumes named EFI␊ |
| 59 | ␉␉# the following script returns 0 if it succeeds␊ |
| 60 | ␉␉# the following script returns 1 if it fails to un-mount any EFI volume␊ |
| 61 | ␉␉"$scriptDir"UnMountEFIvolumes.sh "${installerVolume}" "${scriptDir}"␊ |
| 62 | ␉␉returnValue=$?␊ |
| 63 | ␉␉if [ ${returnValue} = 0 ]; then␊ |
| 64 | ␉␉␉# OK to proceed␊ |
| 65 | ␊ |
| 66 | ␉␉␉if [ ! -e "/Volumes/EFI" ]; then␊ |
| 67 | ␉␉␉␉#echo "DEBUG: Executing Command: mkdir -p ${/Volumes/EFI}"␊ |
| 68 | ␉␉␉␉mkdir -p "/Volumes/EFI"␊ |
| 69 | ␉␉␉#else␊ |
| 70 | ␉␉␉␉#echo "DEBUG: folder /Volumes/EFI already exists"␊ |
| 71 | ␉␉␉fi␊ |
| 72 | ␊ |
| 73 | ␉␉␉# Mount '/Volumes/EFI' using the correct format type␊ |
| 74 | ␉␉␉if [ "$( fstyp "${targetDisk}"s1 | grep hfs )" ]; then␊ |
| 75 | ␉␉␉␉#echo "Executing command: mount_hfs ${targetDevice} ${targetVolume}"␊ |
| 76 | ␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "Mounting ${targetDisk}s1 as /Volumes/EFI"␊ |
| 77 | ␉␉␉␉mount_hfs "${targetDisk}"s1 "/Volumes/EFI"␊ |
| 78 | ␉␉␉fi␊ |
| 79 | ␉␉␉if [ "$( fstyp "${targetDisk}"s1 | grep msdos )" ]; then␊ |
| 80 | ␉␉␉␉#echo "Executing command: mount_msdos -u 0 -g 0 ${targetDevice} ${/Volumes/EFI}"␊ |
| 81 | ␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "Mounting ${targetDisk}s1 as /Volumes/EFI"␊ |
| 82 | ␉␉␉␉mount_msdos -u 0 -g 0 "${targetDisk}"s1 "/Volumes/EFI"␊ |
| 83 | ␉␉␉fi␊ |
| 84 | ␉␉else␊ |
| 85 | ␉␉␉# quit out and notify EFI post script not to write Chameleon files.␊ |
| 86 | ␉␉␉exit 2␊ |
| 87 | ␉␉fi␊ |
| 88 | ␉fi␊ |
| 89 | ␊ |
| 90 | ␉#Scan all partitions for Chameleon code␊ |
| 91 | ␉for (( i=1; i <= $numSlices; i++ ));␊ |
| 92 | ␉do␊ |
| 93 | ␉␉stageExistence=0␊ |
| 94 | ␉␉stage0FirstBootable=0␊ |
| 95 | ␉␉previousExistence="NONE"␊ |
| 96 | ␉␉targetDiskRaw=$targetDiskRawNoSlice$i␊ |
| 97 | ␊ |
| 98 | ␉␉# Check for existing stage 0 boot file (same code as CheckDiskMicrocode.sh script)␊ |
| 99 | ␉␉stage0type=$( dd 2>/dev/null if="$targetDisk" count=3 bs=1 skip=105 | xxd | awk '{print $2$3}' )␊ |
| 100 | ␉␉if [ "${stage0type}" == "0b807c" ] || [ "${stage0type}" == "0a803c" ] || [ "${stage0type}" == "ee7505" ] || [ "${stage0type}" == "742b80" ]; then␊ |
| 101 | ␉␉␉#echo "DEBUG: stage 0 loader found on $targetDisk"␊ |
| 102 | ␉␉␉(( stageExistence++ ))␊ |
| 103 | ␉␉␉␊ |
| 104 | ␉␉␉# While here, check just for either existing boot0hfs, boot0md or boot0md (dmazar's boot0workV2)␊ |
| 105 | ␉␉␉if [ "${stage0type}" == "0a803c" ] || [ "${stage0type}" == "ee7505" ] || [ "${stage0type}" == "742b80" ]; then␊ |
| 106 | ␉␉␉␉stage0FirstBootable=1␊ |
| 107 | ␉␉␉fi␊ |
| 108 | ␉␉fi␊ |
| 109 | ␉␉␉␊ |
| 110 | ␉␉# Check for existence of a bootable partition boot sector containing either boot1h or boot1f32␊ |
| 111 | ␉␉boot1Search=$( dd 2>/dev/null if="$targetDiskRaw" count=1 | perl -ne '@a=split"";for(@a){printf"%02x",ord}' )␊ |
| 112 | ␉␉if [ "${boot1Search:0:16}" == "fa31c08ed0bcf0ff" ] && [ "${boot1Search:1020:2}" == "55" ]; then␊ |
| 113 | ␉␉␉#echo "DEBUG: boot1h found on "$targetDiskRaw␊ |
| 114 | ␉␉␉(( stageExistence++ ))␊ |
| 115 | ␉␉␉previousExistence="boot1"␊ |
| 116 | ␉␉elif [ "${boot1Search:0:4}" == "e962" ] && [ "${boot1Search:180:12}" == "424f4f542020" ] && [ "${boot1Search:1020:2}" == "55" ]; then␊ |
| 117 | ␉␉␉#echo "DEBUG: boot1f32 found on "$targetDiskRaw␊ |
| 118 | ␉␉␉(( stageExistence++ ))␊ |
| 119 | ␉␉␉previousExistence="boot1f32"␊ |
| 120 | ␉␉fi␊ |
| 121 | ␉␉␊ |
| 122 | ␉␉# Check for existing stage 2 boot file.␊ |
| 123 | ␉␉# Include checking the EFI system partition if it exists and is mounted.␊ |
| 124 | ␉␉if [ -e "$( df | grep ${targetDisk}s${i} | awk '{ print $6 }' )"/boot ]; then␊ |
| 125 | ␉␉␉#echo "DEBUG: boot found on $targetDiskRaw"␊ |
| 126 | ␉␉␉(( stageExistence++ ))␊ |
| 127 | ␉␉fi␊ |
| 128 | ␉␉␉␉␉␊ |
| 129 | ␉␉if [ $stageExistence -ge 2 ] && [ "$previousExistence" != "NONE" ] && [ $i -ne $sliceNumber ]; then␊ |
| 130 | ␉␉␉# There is previous Chameleon stage 1 code on a partition boot sector,␊ |
| 131 | ␉␉␉# and either a complete or incomplete installation (ie. boot0 or boot are missing).␊ |
| 132 | ␉␉␉␊ |
| 133 | ␉␉␉if [ $stageExistence == 3 ]; then␊ |
| 134 | ␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: There is already an existing Chameleon installation on $targetDiskRaw."␊ |
| 135 | ␉␉␉␉if [ $i -lt $sliceNumber ]; then␊ |
| 136 | ␉␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "NOTE: And that installation will still be used as it's on an earlier partition."␊ |
| 137 | ␉␉␉␉else␊ |
| 138 | ␉␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: but won't interfere as you're installing to an earlier partition."␊ |
| 139 | ␉␉␉␉fi␊ |
| 140 | ␉␉␉else␊ |
| 141 | ␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: $previousExistence already exists at ${targetDisk}s${i}"␊ |
| 142 | ␉␉␉␉␊ |
| 143 | ␉␉␉␉# A b1f:error or boot0:error could result if the following conditions are true:␊ |
| 144 | ␉␉␉␉# A) Boot0hfs, Boot0md or Boot0md (dmazar's Boot0workV2) is being used.␊ |
| 145 | ␉␉␉␉# B) The previous stage 1 code is on a lower partiton than the one being installed to now.␊ |
| 146 | ␉␉␉␉# C) boot is missing from that partition.␊ |
| 147 | ␉␉␉␉␉␉␊ |
| 148 | ␉␉␉␉# stage0FirstBootable=1 is used to know if 'A' is true.␊ |
| 149 | ␉␉␉␉if [ $stage0FirstBootable == 1 ]; then␊ |
| 150 | ␉␉␉␉␉# i = current slice we're checking, slicenumber = slice trying to install to.␊ |
| 151 | ␉␉␉␉␉if [ $i -lt $sliceNumber ]; then␊ |
| 152 | ␉␉␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "WARN: Conditions point to the possibility of a boot failure"␊ |
| 153 | ␊ |
| 154 | ␉␉␉␉␉␉# Fix by making previous paritionboot sector un-bootable␊ |
| 155 | ␉␉␉␉␉␉# Change Byte 01FExh to 00 (510 decimal)␊ |
| 156 | ␉␉␉␉␉␉mesaageToPost="---␊ |
| 157 | FIX: Make ${targetDisk}s${i} boot sector un-bootable by changing byte 1FEh to 00.␊ |
| 158 | NOTE: Any Extra folder you had there will still be there. If you want to use␊ |
| 159 | NOTE: ${targetDisk}s${i} again as your boot partition then re-run this installer␊ |
| 160 | NOTE: selecting it as the target, ONLY choosing the 'Chameleon Bootloader' option␊ |
| 161 | NOTE: and NONE of the other options.␊ |
| 162 | ---"␊ |
| 163 | ␉␉␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "${mesaageToPost}"␊ |
| 164 | ␉␉␉␉␉␉dd if=${targetDisk}s${i} count=1 bs=512 of=/tmp/originalBootSector␊ |
| 165 | ␉␉␉␉␉␉cp /tmp/originalBootSector /tmp/newBootSector␊ |
| 166 | ␉␉␉␉␉␉dd if="$scriptDir/patch" of=/tmp/newBootSector bs=1 count=1 seek=510 conv=notrunc␊ |
| 167 | ␉␉␉␉␉␉dd if=/tmp/newBootSector of=${targetDisk}s${i} count=1 bs=512␊ |
| 168 | ␉␉␉␉␉else␊ |
| 169 | ␉␉␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: but won't interfere as you're installing to an earlier partition."␊ |
| 170 | ␉␉␉␉␉fi␊ |
| 171 | ␉␉␉␉else␊ |
| 172 | ␉␉␉␉␉"$scriptDir"InstallLog.sh "${installerVolume}" "NOTE: so select to boot that partition (if used) with active flag."␊ |
| 173 | ␉␉␉␉fi␊ |
| 174 | ␉␉␉fi␊ |
| 175 | ␉␉fi␊ |
| 176 | ␉done␊ |
| 177 | #else␊ |
| 178 | ␉#echo "DEBUG: Just one slice"␊ |
| 179 | fi␊ |
| 180 | ␊ |
| 181 | exit 0 |
