nanpuyue · June 14, 2021 00:44 · guitarbug · Jun 14, 2021
diff --git a/live_initrd_on_exfat.sh b/live_initrd_on_exfat.sh
 #!/bin/bash

 # (c) 2016 nanpuyue <[email protected]>
 # usage：sudo ./live_initrd_on_exfat.sh deepin-15.3-amd64.iso

 NAMESERVER="1.2.4.8"
 EXFAT_BIN="sbin/mount.exfat"
 FILE_LIST="sbin/mount.exfat sbin/mount.exfat-fuse lib/x86_64-linux-gnu/libfuse.so.*"

 ISO=$(readlink -f "$1")
 OUTPUT_DIR=$(pwd)
 TMP_DIR=$(mktemp -d) && echo $TMP_DIR

 mount_fs(){
 	echo "mount filesystem"
 	cd "$TMP_DIR"
 	mkdir iso initrd squashfs
 	if [ -f "$ISO" ];then
 		mount -o loop "$ISO" iso
 		for LIVE in live casper;do
 			if [ -f iso/$LIVE/filesystem.squashfs ];then
 				mount -t squashfs -o loop iso/$LIVE/filesystem.squashfs squashfs
 				break 1
 			fi
 		done
 	else
 		echo "no such file:$ISO" && exit 1
 	fi	
 }

 extract_initrd(){
 	echo "extract initrd"
 	cd "$TMP_DIR/initrd" 
 	for EXT in img gz lz;do
 		if [ -f ../iso/$LIVE/initrd.$EXT ];then
 			COMPRESS=$(file -b --mime-type ../iso/$LIVE/initrd.$EXT | grep -Eo "(gzip|lzma)$") && echo compress:$COMPRESS || {
 				echo "can't extract initrd" && exit 1 
 			}
 			eval $COMPRESS -dcS $EXT ../iso/$LIVE/initrd.$EXT | cpio -id
 			break 1
 		fi
 	done
 }

 install_exfat_fuse(){
 	echo "install exfat-fuse"
 	cd "$TMP_DIR"
 	mkdir overlay work rootfs
 	mount -t overlay overlay -o lowerdir=squashfs,upperdir=overlay,workdir=work rootfs
 	cat > rootfs/install_exfat_fuse.sh << EOF
 #!/bin/bash
 export LC_ALL=C
 echo "nameserver $NAMESERVER" > /etc/resolv.conf
 lsb_release -d | grep Ubuntu && add-apt-repository universe
 apt-get update
 apt-get -y install exfat-fuse
 EOF
 	bash -c "chroot rootfs /bin/bash /install_exfat_fuse.sh"
 }

 copy_files_from(){
 	cd "$TMP_DIR/initrd"
 	for file in $FILE_LIST;do
 		cp -avf "$1"/$file ./$(dirname $file)
 	done
 }	

 copy_files(){
 	if [ -f "$TMP_DIR/squashfs/$EXFAT_BIN" ];then
 		copy_files_from "$TMP_DIR/squashfs"
 	else
 		install_exfat_fuse && copy_files_from "$TMP_DIR/rootfs"
 		umount "$TMP_DIR/rootfs"
 	fi
 }

 patch_scripts(){
 	cd "$TMP_DIR/initrd"
 	if [ -f ./bin/boot/9990-misc-helpers.sh ];then
 		patch -p0 --no-backup-if-mismatch << "EOF"
 --- ./bin/boot/9990-misc-helpers.sh	2016-09-08 22:24:25.582875865 +0800
 +++ ./bin/boot/9990-misc-helpers.sh	2016-09-08 22:27:23.765579826 +0800
 @@ -420,6 +420,14 @@
 		return 1
 	fi
 
 +	# exfat support
 +	if [ "${fstype}" = "exfat" ]
 +	then
 +		modprobe -q -b fuse
 +		alias mount='mount.util-linux'
 +		return 0
 +	fi
 +
 	# Try to look if it is already supported by the kernel
 	if grep -q ${fstype} /proc/filesystems
 	then
 EOF
 		cp -avf ./bin/boot/9990-misc-helpers.sh ./lib/live/boot/9990-misc-helpers.sh
 	elif [ -f ./scripts/casper-helpers ];then
 		patch -p0 --no-backup-if-mismatch << "EOF"
 --- ./scripts/casper-helpers	2016-09-09 22:18:34.223899178 +0800
 +++ ./scripts/casper-helpers	2016-09-09 22:33:46.964777273 +0800
 @@ -31,7 +31,7 @@
     # FIXME: do something better like the scan of supported filesystems
     fstype="${1}"
     case ${fstype} in
 -        vfat|iso9660|udf|ext2|ext3|ext4|btrfs|ntfs)
 +        vfat|iso9660|udf|ext2|ext3|ext4|btrfs|ntfs|exfat)
             return 0
             ;;
     esac
 --- ./scripts/lupin-helpers	2016-09-09 23:30:26.822777653 +0800
 +++ ./scripts/lupin-helpers	2016-09-09 23:32:52.033543153 +0800
 @@ -3,7 +3,7 @@
 is_supported_fs(){
     [ -z "${1}" ] && return 1
     case ${1} in
 -        ext2|ext3|ext4|xfs|jfs|reiserfs|vfat|ntfs|iso9660|btrfs)
 +        ext2|ext3|ext4|xfs|jfs|reiserfs|vfat|ntfs|exfat|iso9660|btrfs)
             return 0
             ;;
     esac
 EOF
 	else
 		echo "no file to patch"
 	fi
 }

 compress_initrd(){
 	echo "compress initrd ..."
 	cd "$TMP_DIR/initrd"
 	find . | cpio --quiet -o -H newc | eval $COMPRESS $([ $COMPRESS = "gzip" ] && echo "--rsyncable") > "$OUTPUT_DIR/initrd.$EXT"
 }

 clear_up(){
 	echo "clear up"
 	umount "$TMP_DIR/squashfs" && umount "$TMP_DIR/iso"
 	cd / && rm -rf "$TMP_DIR"
 }

 mount_fs
 extract_initrd
 copy_files
 patch_scripts
 compress_initrd
 clear_up
 echo "done"
	#!/bin/bash

	# (c) 2016 nanpuyue <[email protected]>
	# usage：sudo ./live_initrd_on_exfat.sh deepin-15.3-amd64.iso

	NAMESERVER="1.2.4.8"
	EXFAT_BIN="sbin/mount.exfat"
	FILE_LIST="sbin/mount.exfat sbin/mount.exfat-fuse lib/x86_64-linux-gnu/libfuse.so.*"

	ISO=$(readlink -f "$1")
	OUTPUT_DIR=$(pwd)
	TMP_DIR=$(mktemp -d) && echo $TMP_DIR

	mount_fs(){
	echo "mount filesystem"
	cd "$TMP_DIR"
	mkdir iso initrd squashfs
	if [ -f "$ISO" ];then
	mount -o loop "$ISO" iso
	for LIVE in live casper;do
	if [ -f iso/$LIVE/filesystem.squashfs ];then
	mount -t squashfs -o loop iso/$LIVE/filesystem.squashfs squashfs
	break 1
	fi
	done
	else
	echo "no such file:$ISO" && exit 1
	fi
	}

	extract_initrd(){
	echo "extract initrd"
	cd "$TMP_DIR/initrd"
	for EXT in img gz lz;do
	if [ -f ../iso/$LIVE/initrd.$EXT ];then
	COMPRESS=$(file -b --mime-type ../iso/$LIVE/initrd.$EXT \| grep -Eo "(gzip\|lzma)$") && echo compress:$COMPRESS \|\| {
	echo "can't extract initrd" && exit 1
	}
	eval $COMPRESS -dcS $EXT ../iso/$LIVE/initrd.$EXT \| cpio -id
	break 1
	fi
	done
	}

	install_exfat_fuse(){
	echo "install exfat-fuse"
	cd "$TMP_DIR"
	mkdir overlay work rootfs
	mount -t overlay overlay -o lowerdir=squashfs,upperdir=overlay,workdir=work rootfs
	cat > rootfs/install_exfat_fuse.sh << EOF
	#!/bin/bash
	export LC_ALL=C
	echo "nameserver $NAMESERVER" > /etc/resolv.conf
	lsb_release -d \| grep Ubuntu && add-apt-repository universe
	apt-get update
	apt-get -y install exfat-fuse
	EOF
	bash -c "chroot rootfs /bin/bash /install_exfat_fuse.sh"
	}

	copy_files_from(){
	cd "$TMP_DIR/initrd"
	for file in $FILE_LIST;do
	cp -avf "$1"/$file ./$(dirname $file)
	done
	}

	copy_files(){
	if [ -f "$TMP_DIR/squashfs/$EXFAT_BIN" ];then
	copy_files_from "$TMP_DIR/squashfs"
	else
	install_exfat_fuse && copy_files_from "$TMP_DIR/rootfs"
	umount "$TMP_DIR/rootfs"
	fi
	}

	patch_scripts(){
	cd "$TMP_DIR/initrd"
	if [ -f ./bin/boot/9990-misc-helpers.sh ];then
	patch -p0 --no-backup-if-mismatch << "EOF"
	--- ./bin/boot/9990-misc-helpers.sh 2016-09-08 22:24:25.582875865 +0800
	+++ ./bin/boot/9990-misc-helpers.sh 2016-09-08 22:27:23.765579826 +0800
	@@ -420,6 +420,14 @@
	return 1
	fi

	+ # exfat support
	+ if [ "${fstype}" = "exfat" ]
	+ then
	+ modprobe -q -b fuse
	+ alias mount='mount.util-linux'
	+ return 0
	+ fi
	+
	# Try to look if it is already supported by the kernel
	if grep -q ${fstype} /proc/filesystems
	then
	EOF
	cp -avf ./bin/boot/9990-misc-helpers.sh ./lib/live/boot/9990-misc-helpers.sh
	elif [ -f ./scripts/casper-helpers ];then
	patch -p0 --no-backup-if-mismatch << "EOF"
	--- ./scripts/casper-helpers 2016-09-09 22:18:34.223899178 +0800
	+++ ./scripts/casper-helpers 2016-09-09 22:33:46.964777273 +0800
	@@ -31,7 +31,7 @@
	# FIXME: do something better like the scan of supported filesystems
	fstype="${1}"
	case ${fstype} in
	- vfat\|iso9660\|udf\|ext2\|ext3\|ext4\|btrfs\|ntfs)
	+ vfat\|iso9660\|udf\|ext2\|ext3\|ext4\|btrfs\|ntfs\|exfat)
	return 0
	;;
	esac
	--- ./scripts/lupin-helpers 2016-09-09 23:30:26.822777653 +0800
	+++ ./scripts/lupin-helpers 2016-09-09 23:32:52.033543153 +0800
	@@ -3,7 +3,7 @@
	is_supported_fs(){
	[ -z "${1}" ] && return 1
	case ${1} in
	- ext2\|ext3\|ext4\|xfs\|jfs\|reiserfs\|vfat\|ntfs\|iso9660\|btrfs)
	+ ext2\|ext3\|ext4\|xfs\|jfs\|reiserfs\|vfat\|ntfs\|exfat\|iso9660\|btrfs)
	return 0
	;;
	esac
	EOF
	else
	echo "no file to patch"
	fi
	}

	compress_initrd(){
	echo "compress initrd ..."
	cd "$TMP_DIR/initrd"
	find . \| cpio --quiet -o -H newc \| eval $COMPRESS $([ $COMPRESS = "gzip" ] && echo "--rsyncable") > "$OUTPUT_DIR/initrd.$EXT"
	}

	clear_up(){
	echo "clear up"
	umount "$TMP_DIR/squashfs" && umount "$TMP_DIR/iso"
	cd / && rm -rf "$TMP_DIR"
	}

	mount_fs
	extract_initrd
	copy_files
	patch_scripts
	compress_initrd
	clear_up
	echo "done"