coolaj86 · March 19, 2025 23:14 · gabrc52 · Jun 25, 2023 · krull · Sep 18, 2023
diff --git a/Create a Bootable MacOS Recovery USB with Linux.md b/Create a Bootable MacOS Recovery USB with Linux.md
diff --git a/install-mac-tools.sh b/install-mac-tools.sh
 ########################################################################################################################
 #                                                bootableinstaller.com                                                 #
 ########################################################################################################################

 set -e
 set -u
 set -x

 # Install HFS+ and dmg dependencies
 if ! [ $(command -v mkfs.hfsplus) ] || ! [ $(command -v dmg2img) ]; then
 	# Note: hfsplus and hfsutils are old and not necessary
 	# Note: mac-fdisk (mac-fdisk-cross) is useful for debugging, but not required
 	sudo apt install -y hfsprogs dmg2img
 fi

 # Install xar
 if ! [ -f "xar/xar/src/xar" ]; then
        echo "Installing XAR from https://github.com/mackyle/xar.."

        sudo apt install -y build-essential autoconf
        sudo apt install -y libxml2-dev libssl-dev git
        rm -rf xar/
        git clone https://github.com/mackyle/xar
        pushd xar/xar
                sed -i.bak 's/OpenSSL_add_all_ciphers/OPENSSL_init_crypto/g' configure.ac
                ./autogen.sh --prefix=/usr/local
 		make
 		sudo make install
        popd
 fi
diff --git a/linux-create-bootable-macos-recovery-image.sh b/linux-create-bootable-macos-recovery-image.sh
 ########################################################################################################################
 #                                                bootableinstaller.com                                                 #
 ########################################################################################################################

 # Put bash in "strict mode"
 set -u
 set -e

 if [ -f "./el-capitan-rescue.iso" ]; then
  echo "'el-capitan-rescue.iso' already exists"
  exit 0
 fi

 # Show commands as they are executed
 set -x

 my_installesd="./ElCapitanInstallESD.img"
 if ! [ -f "./InstallESD.img" ]; then
    my_installesd="./InstallESD.img"
 fi

 if ! [ -f "$my_installesd" ]; then
        if ! [ -f "./InstallMacOSX/InstallMacOSX.pkg/InstallESD.dmg" ]; then
                if ! [ -f "./InstallMacOSX.img" ]; then
                        if ! [ -f "./InstallMacOSX.dmg" ]; then
                                echo "Error: 'InstallMacOSX.dmg' doest not exist."
                                echo "    Go to https://support.apple.com/en-us/HT206886"
                                echo "    In step 4 click 'Download OS X El Capitan'"
                        fi

                        # decompresses into a dd-like image
                        dmg2img InstallMacOSX.dmg -o ./InstallMacOSX.img
                        chmod a-w ./InstallMacOSX.img
                        # rm InstallMacOSX.dmg
                fi

 		my_fullosx=$(sudo losetup --list | (grep InstallMacOSX.img || true))
                if ! [ -f "/mnt/InstallMacOSX/InstallMacOSX.pkg" ]; then
                        my_fullosx=$(sudo losetup --partscan --show --find InstallMacOSX.img)
                        echo "$my_fullosx"
                        sudo fdisk -l "$my_fullosx"
                        ls -l "$my_fullosx"p*

                        sudo partprobe $my_fullosx
                        sudo mkdir -p /mnt/InstallMacOSX
                        sudo mount "$my_fullosx"p2 -o ro,noatime /mnt/InstallMacOSX
                fi

                echo "Extracting /mnt/InstallMacOSX/InstallMacOSX.pkg"
                mkdir -p ./InstallMacOSX.tmp.d/
                pushd ./InstallMacOSX.tmp.d/
                        #LD_LIBRARY_PATH=../xar/xar/lib ../xar/xar/src/xar -xvf /mnt/InstallMacOSX/InstallMacOSX.pkg
 			# TODO maybe use pzip / 7zip instead?
                        xar -xvf /mnt/InstallMacOSX/InstallMacOSX.pkg
                popd
                mv ./InstallMacOSX.tmp.d ./InstallMacOSX

                sudo umount /mnt/InstallMacOSX
                sudo losetup -d "$my_fullosx"
        fi

 	if ! [ -f "./ElCapitanInstallESD.img" ]; then
 		dmg2img ./InstallMacOSX/InstallMacOSX.pkg/InstallESD.dmg -o ./ElCapitanInstallESD.img
 		chmod a-w ./ElCapitanInstallESD.img
 	fi
        my_installesd=./ElCapitanInstallESD.img

        # TODO it's now safe to remove the big fat InstallMacOSX.*mg and ./InstallMacOSX/
 fi

 my_esd=$(sudo losetup --list | (grep InstallESD.img || true) | cut -d' ' -f1)
 if ! [ -f "/mnt/InstallESD/BaseSystem.dmg" ]; then
        my_esd=$(sudo losetup --partscan --show --find "$my_installesd")
        echo "$my_esd"
        sudo fdisk -l "$my_esd"
        ls -l "$my_esd"p*

        sudo partprobe $my_esd
        sudo mkdir -p /mnt/InstallESD
        sudo mount "$my_esd"p2 -o ro,noatime /mnt/InstallESD
 fi

 if ! [ -f "./BaseSystem.img" ]; then
        dmg2img /mnt/InstallESD/BaseSystem.dmg -o ./BaseSystem.img
        chmod a-w ./BaseSystem.img
 fi

 my_base=$(sudo losetup --list | grep BaseSystem.img | cut -d' ' -f1)
 if [ -z "$my_base" ]; then
        my_base=$(sudo losetup --partscan --show --find ./BaseSystem.img)
        echo "$my_base"
        sudo fdisk -l "$my_base"
        ls -l "$my_base"p*

        sudo partprobe $my_base
 fi

 my_empty=$(ls empty*img.bz2 | sort | head -1)
 cp -rp "$my_empty" el-capitan-rescue.dd.img.bz2
 bunzip2 el-capitan-rescue.dd.img.bz2

 my_dd=$(sudo losetup --partscan --show --find el-capitan-rescue.dd.img)
 echo "$my_dd"
 sudo mac-fdisk -l "$my_dd"
 ls -l "$my_dd"p*

 sudo dd if="$my_base"p1 of="$my_dd"p2 bs=128M status=progress

 sudo losetup -d "$my_dd"
 mv el-capitan-rescue.dd.img el-capitan-rescue.iso

 sudo umount /mnt/InstallESD
 sudo losetup -d "$my_esd"

 chmod a-w ./el-capitan-rescue.iso
 echo "el-capitan-rescue.iso"
	########################################################################################################################
	# bootableinstaller.com #
	########################################################################################################################

	set -e
	set -u
	set -x

	# Install HFS+ and dmg dependencies
	if ! [ $(command -v mkfs.hfsplus) ] \|\| ! [ $(command -v dmg2img) ]; then
	# Note: hfsplus and hfsutils are old and not necessary
	# Note: mac-fdisk (mac-fdisk-cross) is useful for debugging, but not required
	sudo apt install -y hfsprogs dmg2img
	fi

	# Install xar
	if ! [ -f "xar/xar/src/xar" ]; then
	echo "Installing XAR from https://github.com/mackyle/xar.."

	sudo apt install -y build-essential autoconf
	sudo apt install -y libxml2-dev libssl-dev git
	rm -rf xar/
	git clone https://github.com/mackyle/xar
	pushd xar/xar
	sed -i.bak 's/OpenSSL_add_all_ciphers/OPENSSL_init_crypto/g' configure.ac
	./autogen.sh --prefix=/usr/local
	make
	sudo make install
	popd
	fi