Chameleon

Chameleon Commit Details

Date:2011-10-19 09:23:13 (7 years 9 months ago)
Author:blackosx
Commit:1636
Parents: 1635
Message:Make changes for checking previous installations.
Changes:
M/branches/blackosx/package/Scripts/Sub/UnMountEFIvolumes.sh
M/branches/blackosx/package/Scripts/Sub/CheckPreviousChameleon.sh

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branches/blackosx/package/Scripts/Sub/CheckPreviousChameleon.sh
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exit 9
fi
# Check for existing Chameleon installations on a different
# partition of the same target disk.
#echo "DEBUG: Checking for existing Chameleon installations on ${targetDisk#/dev/}..."
sliceNumber=$( echo ${targetDeviceRaw#*disk*s} )
# strip slice from end
targetDiskRawNoSlice=$( echo ${targetDeviceRaw%$sliceNumber} )
# Are there any other partitions on the disk?
# How many actual partitions are there?
numSlices=$(( $( diskutil list | grep $( echo ${targetDisk#/dev/} ) | sed -n '$=' ) -2 ))
# Only check the disk for Chameleon installations if there is more than one partition.
if [ $numSlices -gt 1 ]; then
# If a GPT is used then we are going to have the check the EFI system partition
# for the stage 2 'boot' file. As this script is called from the Main EFI
# postinstall script, so lets mount the EFI system partition here instead.
# ===============================================
# Functions
# ===============================================
mountESP()
{
if [ "${partitiontable}" = "GUID_partition_scheme" ]; then
# Unmount ALL mounted volumes named EFI
exit 2
fi
fi
}
# ===============================================
# Prepare some vars
# ===============================================
sliceNumber=$( echo ${targetDeviceRaw#*disk*s} )
# strip slice from end
targetDiskRawNoSlice=$( echo ${targetDeviceRaw%$sliceNumber} )
# Are there any other partitions on the disk?
# How many actual partitions are there?
numSlices=$(( $( diskutil list | grep $( echo ${targetDisk#/dev/} ) | sed -n '$=' ) -2 ))
# ===============================================
# Checking the disk for existing Chameleon installations
# if there is more than one partition on the disk.
# ===============================================
if [ $numSlices -gt 1 ]; then
#echo "DEBUG: Checking for existing Chameleon installations on ${targetDisk#/dev/}..."
"$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. As this script is called from the Main EFI
# postinstall script, so lets mount the EFI system partition here instead.
mountESP
#Scan all partitions for Chameleon code
for (( i=1; i <= $numSlices; i++ ));
do
stageExistence=0
stage0FirstBootable=0
previousExistence="NONE"
stagesFound=0
stage0type=0
stage1Existence="NONE"
stage2Existence=0
targetDiskRaw=$targetDiskRawNoSlice$i
# Check for existing stage 0 boot file (same code as CheckDiskMicrocode.sh script)
# Check for existing stage 0 boot file (code from CheckDiskMicrocode.sh script)
stage0type=$( dd 2>/dev/null if="$targetDisk" count=3 bs=1 skip=105 | xxd | awk '{print $2$3}' )
if [ "${stage0type}" == "0b807c" ] || [ "${stage0type}" == "0a803c" ] || [ "${stage0type}" == "ee7505" ] || [ "${stage0type}" == "742b80" ]; then
#echo "DEBUG: stage 0 loader found on $targetDisk"
(( stageExistence++ ))
# While here, check just for either existing boot0hfs, boot0md or boot0md (dmazar's boot0workV2)
if [ "${stage0type}" == "0a803c" ] || [ "${stage0type}" == "ee7505" ] || [ "${stage0type}" == "742b80" ]; then
stage0FirstBootable=1
fi
if [ "${stage0type}" == "0a803c" ] || [ "${stage0type}" == "ee7505" ] || [ "${stage0type}" == "742b80" ]; then
#echo "DEBUG: stage 0 (hfs) loader found on $targetDisk"
(( stagesFound++ ))
stage0type=2
elif [ "${stage0type}" == "0b807c" ]; then
#echo "DEBUG: stage 0 (active) loader found on $targetDisk"
(( stagesFound++ ))
stage0type=1
fi
# Check for existence of a bootable partition boot sector containing either boot1h or boot1f32
boot1Search=$( dd 2>/dev/null if="$targetDiskRaw" count=1 | perl -ne '@a=split"";for(@a){printf"%02x",ord}' )
if [ "${boot1Search:0:16}" == "fa31c08ed0bcf0ff" ] && [ "${boot1Search:1020:2}" == "55" ]; then
#echo "DEBUG: boot1h found on "$targetDiskRaw
(( stageExistence++ ))
previousExistence="boot1"
(( stagesFound++ ))
stage1Existence="boot1h"
elif [ "${boot1Search:0:4}" == "e962" ] && [ "${boot1Search:180:12}" == "424f4f542020" ] && [ "${boot1Search:1020:2}" == "55" ]; then
#echo "DEBUG: boot1f32 found on "$targetDiskRaw
(( stageExistence++ ))
previousExistence="boot1f32"
(( stagesFound++ ))
stage1Existence="boot1f32"
fi
# Check for existing stage 2 boot file.
# Include checking the EFI system partition if it exists and is mounted.
if [ -e "$( df | grep ${targetDisk}s${i} | awk '{ print $6 }' )"/boot ]; then
#echo "DEBUG: boot found on $targetDiskRaw"
(( stageExistence++ ))
(( stagesFound++ ))
stage2Existence=1
fi
if [ $stageExistence -ge 2 ] && [ "$previousExistence" != "NONE" ] && [ $i -ne $sliceNumber ]; then
if [ $stagesFound -ge 2 ] && [ "$stage1Existence" != "NONE" ] && [ $i -ne $sliceNumber ]; then
# There is previous Chameleon stage 1 code on a partition boot sector,
# and either a complete or incomplete installation (ie. boot0 or boot are missing).
if [ $stageExistence == 3 ]; then
"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: There is already an existing Chameleon installation on $targetDiskRaw."
if [ $i -lt $sliceNumber ]; then
"$scriptDir"InstallLog.sh "${installerVolume}" "NOTE: And that installation will still be used as it's on an earlier partition."
else
"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: but won't interfere as you're installing to an earlier partition."
fi
else
"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: $previousExistence already exists at ${targetDisk}s${i}"
# A b1f:error or boot0:error could result if the following conditions are true:
# A) Boot0hfs, Boot0md or Boot0md (dmazar's Boot0workV2) is being used.
# B) The previous stage 1 code is on a lower partiton than the one being installed to now.
# C) boot is missing from that partition.
if [ $stagesFound == 3 ] && [ $i -lt $sliceNumber ]; then
# Exisitng installation found which will still be default.
message="************************** TAKE NOTE *****************************
**** There is an existing Chameleon installation on $targetDiskRaw
**** and that installation will still be the default loader as it's
**** on an earlier partition. If you want this new installation on
**** $installerVolume to be default then you will need to remove the
**** boot file from $targetDiskRaw and re-run this installer.
**************************************************************"
"$scriptDir"InstallLog.sh "${installerVolume}" "${message}"
fi
if [ $stagesFound == 3 ] && [ $i -gt $sliceNumber ]; then
# Exisitng installation found which will no longer be default.
message="NOTE: There is an existing Chameleon installation on $targetDiskRaw
NOTE: but this installation on $targetDevice will be the default loader
NOTE: because you're installing to an earlier partition on the disk."
"$scriptDir"InstallLog.sh "${installerVolume}" "${message}"
fi
# User could see a b1f:error or boot0:error if the following conditions are true:
# A) Boot0hfs, Boot0md or Boot0md (dmazar's Boot0workV2) is being used.
# B) The previous stage 1 code is on a lower partiton than the one being installed to now.
# C) boot is missing from that partition.
if [ $stagesFound == 2 ] && [ $stage2Existence == 0 ]; then
# Exisitng boot0 and boot1 only found - missing boot
"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: Found $stage1Existence installed to ${targetDisk}s${i}"
# stage0FirstBootable=1 is used to know if 'A' is true.
if [ $stage0FirstBootable == 1 ]; then
# stage0type=2 is used to know if 'A' is true.
if [ $stage0type == 2 ]; then
# i = current slice we're checking, slicenumber = slice trying to install to.
if [ $i -lt $sliceNumber ]; then
"$scriptDir"InstallLog.sh "${installerVolume}" "WARN: Conditions point to the possibility of a boot failure"
# Fix by making previous paritionboot sector un-bootable
# Change Byte 01FExh to 00 (510 decimal)
mesaageToPost="---
# Change Byte 01FExh to 00 (510 decimal)
message="---
FIX: Make ${targetDisk}s${i} boot sector un-bootable by changing byte 1FEh to 00.
NOTE: Any Extra folder you had there will still be there. If you want to use
NOTE: ${targetDisk}s${i} again as your boot partition then re-run this installer
NOTE: selecting it as the target, ONLY choosing the 'Chameleon Bootloader' option
NOTE: and NONE of the other options.
---"
"$scriptDir"InstallLog.sh "${installerVolume}" "${mesaageToPost}"
dd if=${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
"$scriptDir"InstallLog.sh "${installerVolume}" "${message}"
if [ $i == 1 ]; then
umount /Volumes/EFI
fi
if [ "$( 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
mountESP
else
"$scriptDir"InstallLog.sh "${installerVolume}" "INFO: but won't interfere as you're installing to an earlier partition."
fi
else
elif [ $stage0type == 1 ]; then
# boot0 was found which looks for boot1 on the first active partition.
"$scriptDir"InstallLog.sh "${installerVolume}" "NOTE: so select to boot that partition (if used) with active flag."
#else
#echo "DEBUG: Boot0 not found"
fi
fi
fi
done
#else
#echo "DEBUG: Just one slice"
branches/blackosx/package/Scripts/Sub/UnMountEFIvolumes.sh
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attempts=1
while [ "$( df | grep EFI )" ] && [ $attempts -lt 5 ]; do
#echo "DEBUG: Unmounting $( df | grep EFI | awk '{print $1}' )"
"$scriptDir"InstallLog.sh "${targetVolumeChosenByUser}" "Find and unmount any volume named 'EFI':"
"$scriptDir"InstallLog.sh "${targetVolumeChosenByUser}" "$( df | grep EFI | awk '{print $1}' )"
"$scriptDir"InstallLog.sh "${targetVolumeChosenByUser}" "Volume named 'EFI' is mounted..."
"$scriptDir"InstallLog.sh "${targetVolumeChosenByUser}" "Unmounting $( df | grep EFI | awk '{print $1}' )"
umount -f $( df | grep EFI | awk '{print $1}' )
(( attempts++ ))
done

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