Initial commit

13 files changed, 1449 insertions, 0 deletions

diff --git a/backend/modules/bootloader b/backend/modules/bootloader
new file mode 100644
index 0000000..a3f7546
--- /dev/null
+++ b/backend/modules/bootloader
@@ -0,0 +1,158 @@
+#!/bin/bash
+
+# Synopsis: list_bootloader_targets
+#
+# This function lists all disks and the root-partition if it is suitable to install a bootloader on it.
+# Output example:
+#   /dev/sda:MBR:250059350016
+#   /dev/sdb:MBR:400088457216
+#   /dev/sdb1:Rootpartition:60003385344
+function list_bootloader_targets()
+{
+        for disk in $(list_all_disks)
+        do
+                echo "$disk - MBR $(blockdev --getsize64 $disk)"
+        done
+	root_dev="$(hdmap_get device of mountpoint /)"
+	root_fs="$(hdmap_get filesystem of mountpoint /)"
+        [ -z "$root_fs" ] && root_fs=$(get_filesystem "$root_dev")
+        case $root_fs in
+        reiserfs|ext2|ext3|ext4)
+                list_linux_partitions | grep -q "^$root_dev$" &&
+                echo "$root_dev - Rootpartition $(blockdev --getsize64 $root_dev)"
+                ;;
+        esac
+}
+
+function send_bootloader_targets()
+{
+	send data bootloader_targets
+	list_bootloader_targets
+}
+
+# Synopsis: list_bootloaders
+#
+# This function lists all available bootloaders
+# Output example:
+#   BURG - Brand-new Universal loadeR from GRUB
+#   GRUB - GRand Unified Bootloader
+function list_bootloaders()
+{
+        for bl in burg grub
+        do
+                [ -x /usr/sbin/$bl-setup ] || continue
+                case $bl in
+                burg) echo "BURG - Brand-new Universal loadeR from GRUB";;
+                grub) echo "GRUB - GRand Unified Bootloader";;
+                esac
+        done
+}
+
+function send_bootloaders()
+{
+	send data bootloaders
+	list_bootloaders
+}
+
+function install_bootmanager_to_target()
+{
+    send install_step install_bootmanager_to_target
+    # force initrd update
+    [ -d $TARGET/var/lib/initramfs-tools ] && rm -f $TARGET/var/lib/initramfs-tools/*
+    chroot_it update-initramfs -utk all &>/dev/null
+
+    case "$cfg_bootloader" in
+    grub)
+        install_grub
+        ;;
+    burg)
+        install_burg
+        ;;
+    esac
+}
+
+function install_grub()
+{
+    rm -f $TARGET/boot/vmlinuz $TARGET/boot/System.map $TARGET/boot/initrd.img
+
+    # install grub
+    mkdir -p "$TARGET/boot/grub"
+    grub-install --recheck --no-floppy --root-directory=$TARGET "$cfg_bootloader_target" &>/dev/null || \
+    grub-install --force --recheck --no-floppy --root-directory=$TARGET "$cfg_bootloader_target" &>/dev/null
+
+#    # create device.map and save it to target
+#    export device_map=$TARGET/tmp/device.map
+#    get_device_map > $device_map
+#    cat $device_map > $TARGET/boot/grub/device.map
+#    rm -f $device_map
+
+    # preseed grub-pc with install-target
+    for path in /dev/disk/by-id/*
+    do
+    	[ -e "$path" ] || continue
+    	if [ "$(readlink -f "$path")" = "$(readlink -f "$cfg_bootloader_target")" ]; then
+            echo "grub-pc grub-pc/install_devices multiselect $path" | chroot_it debconf-set-selections &>/dev/null
+	    break
+	fi
+    done
+    
+    write_kernel_img_conf
+
+    # update grub
+    chroot_it update-grub &>/dev/null
+    DEBIAN_FRONTEND=noninteractive chroot_it dpkg-reconfigure grub-pc &>/dev/null
+    
+    return 0
+}
+
+function install_burg()
+{
+    rm -f $TARGET/boot/vmlinuz $TARGET/boot/System.map $TARGET/boot/initrd.img
+
+    # install burg
+    mkdir -p "$TARGET/boot/burg"
+    burg-install --recheck --no-floppy --root-directory=$TARGET "$cfg_bootloader_target" &>/dev/null || \
+    burg-install --force --recheck --no-floppy --root-directory=$TARGET "$cfg_bootloader_target" &>/dev/null
+
+#    # create device.map and save it to target
+#    export device_map=$TARGET/tmp/device.map
+#    get_device_map > $device_map
+#    cat $device_map > $TARGET/boot/burg/device.map
+#    rm -f $device_map
+
+    # preseed burg-pc with install-target
+    for path in /dev/disk/by-id/*
+    do
+    	[ -e "$path" ] || continue
+    	if [ "$(readlink -f "$path")" = "$(readlink -f "$cfg_bootloader_target")" ]; then
+            echo "burg-pc burg-pc/install_devices multiselect $path" | chroot_it debconf-set-selections &>/dev/null
+	    break
+	fi
+    done
+    
+    write_kernel_img_conf
+
+    # update burg
+    chroot_it update-burg &>/dev/null
+    DEBIAN_FRONTEND=noninteractive chroot_it dpkg-reconfigure burg-pc &>/dev/null
+    
+    return 0
+}
+
+function write_kernel_img_conf()
+{
+rm -f $TARGET/etc/kernel-img.conf
+cat << EOT > $TARGET/etc/kernel-img.conf
+# Kernel image management overrides
+# See kernel-img.conf(5) for details
+do_symlinks = yes
+relative_links = yes
+do_bootloader = no
+do_bootfloppy = no
+do_initrd = yes
+link_in_boot = no
+postinst_hook = update-$cfg_bootloader
+postrm_hook   = update-$cfg_bootloader
+EOT
+}
+
diff --git a/backend/modules/cleanup b/backend/modules/cleanup
new file mode 100644
index 0000000..fe604a0
--- /dev/null
+++ b/backend/modules/cleanup
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+function cleanup()
+{
+	
+        cd /
+        umount "$TARGET/proc" &>/dev/null
+        umount "$TARGET/dev" &>/dev/null
+        umount "$TARGET/sys" &>/dev/null
+	umount_all_affected "$(hdmap_get device of mountpoint /)" &>/dev/null
+        umount "$TARGET" &>/dev/null
+        umount "/live/filesystem" &>/dev/null
+	rmdir "$TARGET" "/live/filesystem" &>/dev/null
+}
+
diff --git a/backend/modules/common b/backend/modules/common
new file mode 100644
index 0000000..5c763f3
--- /dev/null
+++ b/backend/modules/common
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Synopsis: dereferce_links_in_list
+#
+# This function reads a list from STDIN, dereferences the links and prints it to STDOUT
+function dereferce_links_in_list()
+{
+        for lnk in $(cat)
+        do
+                readlink -m $lnk
+        done
+}
+
diff --git a/backend/modules/config b/backend/modules/config
new file mode 100644
index 0000000..d073580
--- /dev/null
+++ b/backend/modules/config
@@ -0,0 +1,68 @@
+#!/bin/bash
+
+declare -A cfg flags
+
+function cfg_get()
+{
+	while [ "$1" ];
+	do
+		send data value
+		echo "${cfg["$1"]}"
+		send cfg "$1"
+		shift
+	done
+}
+
+function cfg_set()
+{
+	var="$1"
+	shift
+	cfg["$var"]="$@"
+	cfg_get "$var" # inform the frontend about the change
+	var="$(tr '[:upper:]' '[:lower:]' <<<"$var" | tr -d '\n' | tr -c '[:alnum:]' _)"
+	export cfg_${var}="$@"
+}
+
+function flag()
+{
+	[ "${flags["$1"]}" ] && return 0 || return 1
+}
+
+function flag_set()
+{
+	send flag set "$1" # inform the frontend about the change
+	flags["$1"]=1
+}
+
+function flag_unset()
+{
+	send flag unset "$1" # inform the frontend about the change
+	unset flags["$1"]
+}
+
+function hdmap_set()
+{
+	cfg_set hdmap "$( ( echo "$@"; ( echo "$@"; echo "$cfg_hdmap" ) | sort -u -t: -k1,1 ) | sort -u -t: -k2,2 | grep .)"
+}
+
+# Synopsis: hdmap_get <"device"|"mountpoint"|"filesystem"|"automount"> of <"device"|"mountpoint"> <device|mountpoint>
+#
+# This function returns the given value from the hdmap table
+function hdmap_get()
+{
+	[ "$2" == "of" ] || return 1
+	case "$1" in
+	device) col=1;;
+	mountpoint) col=2;;
+	filesystem) col=3;;
+	automount) col=4;;
+	*) return 1;;
+	esac
+	case "$3" in
+	device) of_col=1;;
+	mountpoint) of_col=2;;
+	*) return 1;;
+	esac
+	gawk "BEGIN{FS=\":\"}{if(\$$of_col==\"$4\"){print \$$col}}" <<<"$cfg_hdmap"
+}
+
diff --git a/backend/modules/frontend b/backend/modules/frontend
new file mode 100644
index 0000000..ffa2d28
--- /dev/null
+++ b/backend/modules/frontend
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+function send()
+{
+	command="$1"
+	shift
+	echo "<acritoxinstaller $command> $@"
+}
+
+function send_error()
+{
+	if [ "$#" -gt 1 ]; then
+		send error "$@" >&2
+	elif [ "$#" -eq 1 ]; then
+		send error "$1" "$(tr -d '\n')" >&2
+	else
+		send error 255 unknown >&2
+	fi
+	return 1
+}
+
diff --git a/backend/modules/hdmap b/backend/modules/hdmap
new file mode 100644
index 0000000..d57d105
--- /dev/null
+++ b/backend/modules/hdmap
@@ -0,0 +1,340 @@
+#!/bin/bash
+
+# Synopsis: mointpoint_demands
+#
+# This function dumps the demands of various mountpoints
+function mointpoint_demands()
+{
+cat <<"EOT"
+/: Type:Linux
+/boot: LVM:no Type:Linux
+/bin: Type:Linux
+/etc: Type:Linux
+/home: Type:Linux
+/lib: Type:Linux
+/opt: Type:Linux
+/root: Type:Linux
+/sbin: Type:Linux
+/tmp: Type:Linux
+/usr: Type:Linux
+/var: Type:Linux
+EOT
+}
+
+# FIXME TODO OLD OUTDATED 
+function emit_error()
+{
+send debug "$@"
+cat
+return 1
+}
+# FIXME TODO OLD OUTDATED 
+function emit_progress()
+{
+        percent=$1
+        [ "$percent" -gt 100 ] && percent=100
+        send progress "$percent"
+}
+
+
+# Synopsis: is_disk /dev/xyz
+#
+# This function returns 0 if the supplied argument is a disk.
+function is_disk()
+{
+    stat --format "%t %G" "$1" | grep -qe "^3 " -e " disk$" && return 0
+    return 1
+}
+
+# Synopsis: calculate_min_space
+#
+# This function estimates the minimum space needed for a hdinstall
+function calculate_min_space()
+{
+    ESTIMATED_ROOT_MIN=$(df -m "/live/filesystem" | tail -1 | gawk '{print $3}')
+    grep -q squashfs /proc/mounts && ESTIMATED_ROOT_MIN=$(($ESTIMATED_ROOT_MIN*270/100))
+    export ESTIMATED_ROOT_MIN
+}
+
+# Synopsis: handle_mountpoint_demands <device>
+#
+# This function handles the demands of the mountpoints (data from function mountpoint_demands)
+#   * check if filesystem matches (Filesystem:reiserfs / Filesystem:ext3 / see get_filesystem() )
+#   * check if filesystem-type matches (Type:Linux / Type:Windows / see get_filesystem_type() )
+#   * check if <device> is a LVM-device (LVM:yes / LVM:no)
+# TODO: from old installer, not adapted yet.
+function handle_mountpoint_demands()
+{
+	PART="$1";
+	FORMAT_FS="$2";
+	POINT=$(echo $3 | cut -d":" -f1); shift 3
+	while [ "$1" ];
+	do
+		VAR=$(echo $1 | cut -d":" -f1)
+		VAL=$(echo $1 | cut -d":" -f2)
+		case "$VAR" in
+		Filesystem)
+			if [ -n "$FORMAT_FS" -a "$FORMAT_FS" != "$VAL" ]; then
+				echo "ERROR: Filesystem on $PART ($POINT) has to be formatted with $VAL!" \
+				| emit_error 1
+				return 1
+			elif [ -z "$FORMAT_FS" -a "$(get_filesystem "$PART")" != "$VAL" ]; then
+				echo "ERROR: Filesystem on $PART ($POINT) is not $VAL!" \
+				| emit_error 1
+				return 1
+			fi
+			;;
+		Type)
+			if [ -n "$FORMAT_FS" -a "$(get_filesystem_type -fs "$FORMAT_FS")" != "$VAL" ]; then
+				echo "ERROR: Filesystem on $PART ($POINT) has to be formatted with a $VAL-Filesystem!" \
+				| emit_error 1
+				return 1
+			elif [ -z "$FORMAT_FS" -a "$(get_filesystem_type "$PART")" != "$VAL" ]; then
+				echo "ERROR: Filesystem on $PART ($POINT) is not a $VAL-Filesystem!" \
+				| emit_error 1
+				return 1
+			fi
+			;;
+		LVM)
+			not=not
+			lvdisplay $PART &>/dev/null; A=$?
+			[ "$VAL" = "yes" ] && unset not; B=$?
+			((A*B)) || ! ((A-B)) || ( echo ERROR: $PART "($POINT)" must $not be on a LVM-device! | emit_error 1; return 1 ) || return 1
+			;;
+		esac
+		shift
+	done
+}
+
+# Synopsis: check_partitions_for_install
+#
+# This function processes the hd_map-config:
+#   * make sure that the device exists
+#   * take care of the mountpoint demands
+#   * check if partition has the "automount"-flag
+#   * check if all partitions are big enough to install the system on it
+# TODO: from old installer, not adapted yet.
+function check_partitions_for_install()
+{
+	unset found_root
+	local progress_steps=$(( $(wc -l <<<"$cfg_hdmap") * 2 + 1))
+	local progress=0
+        progress=$[progress+1]; emit_progress $[100*progress/progress_steps]
+        # compute partition_min_table
+        local partition_min_table_=$ESTIMATED_ROOT_MIN
+        while IFS=: read device mountpoint filesystem automount
+        do
+            case "$mountpoint" in
+            "") continue;;
+            /) continue;;
+            /usr) MP_MIN=$(( $ESTIMATED_ROOT_MIN - $(du -sm --exclude /live/filesystem/usr /live/filesystem | cut -f1) ));;
+            *) MP_MIN=$(du -sm "/live/filesystem$mountpoint" 2>/dev/null | cut -f1);;
+            esac
+            [ -z "$MP_MIN" ] && MP_MIN=0
+            mp="$mountpoint"
+            while mp="$(dirname "$mp")"
+            do
+                var_mp="$(echo "$mp" | sed 's/[^a-zA-Z0-9]/_/g')"
+                parent_min="$(eval echo \$partition_min_table$var_mp)"
+                if [ -n "$parent_min" ]; then
+                    eval local partition_min_table$var_mp=$(( $parent_min-$MP_MIN ))
+                    break
+                fi
+                [ "${#mp}" -gt 1 ] || break;
+            done
+            var_mp="$(echo "$mountpoint" | sed 's/[^a-zA-Z0-9]/_/g')"
+            eval local partition_min_table$var_mp=$MP_MIN
+            progress=$[progress+1]; emit_progress $[100*progress/progress_steps]
+        done <<<"$cfg_hdmap"
+
+        isosrc_dev="$(awk '{if($2 == "/isosrc"){print $1}}' /proc/mounts)"
+	while IFS=: read device mountpoint filesystem automount
+	do
+		[ -z "$mountpoint" ] && continue;
+		
+		# set flag if there is a root-partition in the hd_map
+		[ "$mountpoint" = / ] && found_root=1
+		
+                if [ "$device" = "$isosrc_dev" ]; then
+                    if [ "$filesystem" ]; then
+                        emit_error 1 "Partition $device ($mountpoint) is mounted to /isosrc... This partition cannot be formatted!"
+                        return 1
+                    fi
+                fi
+		
+		# take care of the mountpoint demands
+		if part_demands="$(mointpoint_demands | egrep "^$mountpoint:" 2>/dev/null)"; then
+			[ "$automount" = "auto" ] || emit_error 1 "Partition $device ($mountpoint) doesn't have the automount-flag set!" || return 1
+			eval handle_mountpoint_demands \"$device\" \"$filesystem\" $part_demands
+		fi
+		
+		# Check if the partition is big enough to contain the installation
+		var_mp="$(echo "$mountpoint" | sed 's/[^a-zA-Z0-9]/_/g')"
+		mp_min="$(eval echo \$partition_min_table$var_mp)"
+		partition_size_min=$[mp_min*1024*1024*115/100] # + 15% Filesystem overhead
+		partition_size="$(blockdev --getsize64 $device)" # actual size of device (in bytes)
+		if [ "$partition_size" -lt "$partition_size_min" ]; then
+			emit_error 1 "Partition $device ($mountpoint) is too small! it is $[partition_size/1024/1024] MB big, but it should be at least $[partition_size_min/1024/1024+10] MB big"
+			return 1
+		fi
+		progress=$[progress+1]; emit_progress $[100*progress/progress_steps]
+	done <<<"$cfg_hdmap"
+	
+	if [ -z "$found_root" ]; then
+		echo "No root-partition selected!" | emit_error 1
+	fi
+}
+
+# Synopsis: umount_all_affected [-fdisk] <device>
+#
+# This function unlocks a device and all affected devices:
+#   * it umounts mounted partitions with "umount" and disables swap-partitions with "swapoff"
+#   * if "-fdisk" is set:
+#     - it unlocks all partitions that are on the same device as the one given
+#       (e.g. "umount_all_affected -fdisk /dev/hda3" is called, so /dev/hda* is unlocked)
+#     - it takes care of LVM-Volumes and unlocks them if they are affected
+#     - it takes care of dm_crypt-Disks and unlocks them if they are affected
+# TODO: from old installer, not fully adapted yet.
+function umount_all_affected()
+{
+	unset DEV NR EXHAUSITIVE
+	if [ "$1" = "-fdisk" ]; then
+		# partition itself and its "sister" partitions (just to be sure, for fdisk):
+		shift
+		#DEV="${1%%[0-9]*}"
+		DEV="$(get_disk "$1")"
+		NR="${1:${#disk}}"
+		EXHAUSITIVE=1
+	fi
+	[ -z "$DEV" ] && DEV="$(echo "$1" | dereferce_links_in_list)"
+	# Mounts
+	while IFS=" " read mnt_dev mnt_point mnt_dummy
+	do
+		[ "$mnt_point" = "/live/filesystem" -o -z "$mnt_point" ] && continue
+		case "$mnt_point" in
+		/|/cdrom|/dev|/dev/*|/isosrc|/proc|/proc/*|/ramdisk|/sys|/tmp) ;;
+		*)
+			echo $mnt_dev | dereferce_links_in_list | grep -q ^$DEV$ || continue
+			for umount_point in $(gawk '{print $2}' /proc/mounts | grep -e "^$mnt_point$" -e "^$mnt_point/" | sort -r)
+			do
+				fuser -km "$umount_point"
+				umount "$umount_point" &>/dev/null || \
+				umount -l "$umount_point"
+			done
+			;;
+		esac
+	done < /proc/mounts
+	# Swap
+	for i in $(grep -e "^$DEV" /proc/swaps  | cut -d\  -f1)
+	do
+		swapoff "$i";
+	done
+#	# LVM
+#	for i in $(pvdisplay -c 2>/dev/null | grep "$DEV" | cut -d: -f2 | sort | uniq)
+#	do
+#		lv_name="$(lvdisplay $i | gawk '/LV Name/{print $3}')"
+#		lv_dev="$(echo $lv_name | dereferce_links_in_list)"
+#		for dev in $( ( echo $lv_name; echo $lv_dev ) | sort | uniq)
+#		do
+#			# recursive function call
+#			umount_all_affected $dev
+#		done
+#		((EXHAUSITIVE)) && vgchange -a n $i &>/dev/null
+#	done
+#	# Crypttab
+#	for cmapname in $(grep $DEV /etc/crypttab | cut -d\  -f1)
+#	do
+#		umount_all_affected "/dev/mapper/$cmapname"
+#		((EXHAUSITIVE)) && cryptsetup remove $cmapname
+#	done
+}
+
+# Synopsis: prepare_partitions_for_install [--nomount]
+#
+# This function processes the hd_map-config:
+#   * create mountpoints
+#   * format the partitions if a filesystem is given
+#   * take care of LVM-Volumes and dm_crypt-Disks
+#   * create the specified mountpoints in $TARGET
+#   * mount the partitions to the target
+#   * mount (bind) /dev, /proc and /sys to the target
+#
+# --nomount simply doesn't mount or umount partitions
+# TODO: from old installer, not adapted yet.
+function prepare_partitions_for_install()
+{
+	send install_step prepare_partitions_for_install
+	emit_progress 0
+        local progress_steps=$(( $(wc -l <<<"$cfg_hdmap") ))
+	local progress=0
+	while IFS=: read device mountpoint filesystem automount
+	do	
+		[ "$1" != "--nomount" ] && umount_all_affected $device
+		
+		# format device with filesystem (if specified)
+		if [ "$filesystem" ]; then
+			
+			dd if=/dev/zero of=$device bs=1k count=16 >/dev/null 2>/dev/null # shutup! :-)
+			
+			TMP=/tmp/mkfs.$$
+			case "$filesystem" in
+			xfs)
+				mkfs.$filesystem -f $device 2> $TMP 1>&2
+				;;
+			reiser*)
+				echo y | mkfs.$filesystem $device 2> $TMP 1>&2
+				;;
+			jfs)
+				echo y | mkfs.$filesystem $device 2> $TMP 1>&2
+				;;
+			*)
+				mkfs.$filesystem $device 2> $TMP 1>&2
+				;;
+			esac
+
+			RC="$?"
+			if [ $RC -ne 0 ]; then
+				ERROR_MESSAGES=$(tail -8 $TMP)
+				echo "$ERROR_MESSAGES"
+				emit_error 1 "mkfs failed" || return 1
+			fi
+	
+			# Deactivate dir_index-feature of ext2/ext3/ext4-partitions
+			case $filesystem in
+				*ext*)
+					tune2fs -O ^dir_index $device &>/dev/null
+					;;
+			esac
+		fi
+		
+		mkdir -p ${TARGET}${mountpoint} # make sure mountpoint exists
+		
+		# only mount the partition if: 1. it has the automount flag
+		#                              2. the mountpoint exists on the Live system
+		#                          and 3. prepare_partitions_for_install was not called with "--nomount"
+		if [ "$automount" = "auto" -a "$1" != "--nomount" -a -d "/live/filesystem$mountpoint" ]; then
+			# mount device to mountpoint
+			EC="$(LC_ALL=C mount $device ${TARGET}${mountpoint} 2>&1)"
+			if (($?)); then
+				case "$EC" in
+				"*already mounted*") # then let's try "mount --bind"
+					already_mp="$(grep ^$device /proc/mounts | cut -d\  -f2)"
+					if [ -d "$already_mp" ]; then
+						awk '/^\/dev/{if($4 ~ /^rw/){print $1}}' /proc/mounts  | grep -qw $device || mount -o remount,rw "$already_mp"
+						mount --bind "$already_mp" ${TARGET}${mountpoint} 2>&1
+					fi
+					;;
+				*)
+					emit_error 1 "mount failed: $EC" || return 1
+					;;
+				esac
+			fi
+			if ! awk '/^\/dev/{if($4 ~ /^rw/){print $1}}' /proc/mounts | grep -qw $device; then
+				emit_error 1 "mount failed: $EC" || return 1
+			fi
+		fi
+		
+		# update progress
+		progress=$[progress+1]; emit_progress $[100*progress/progress_steps]
+	done <<<"$cfg_hdmap"
+}
diff --git a/backend/modules/init b/backend/modules/init
new file mode 100644
index 0000000..f7a7628
--- /dev/null
+++ b/backend/modules/init
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+function init_installer()
+{
+	[ -f /etc/default/distro ] && . /etc/default/distro
+	export FLL_DISTRO_MODE FLL_DISTRO_NAME FLL_LIVE_USER
+	mkdir -p /live/filesystem
+	[ -d /live/filesystem/usr ] || mount -o ro /dev/loop0 /live/filesystem
+	cfg_set hostname "${FLL_DISTRO_NAME}Box"
+}
+
diff --git a/backend/modules/install b/backend/modules/install
new file mode 100644
index 0000000..760f40d
--- /dev/null
+++ b/backend/modules/install
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+function do_install()
+{
+	send install_step check_partitions_for_install
+	check_partitions_for_install
+	prepare_target
+	prepare_partitions_for_install
+	copy_system_to_target
+	update_fstab_on_target
+	update_passwd_on_target
+	copy_home_to_target
+	copy_etc_to_target
+	configure_target_update_files
+	configure_target_purge_live_only_stuff
+	configure_target_services
+	install_bootmanager_to_target
+	send install_step cleanup
+	cleanup
+}
+
+function prepare_target()
+{
+	send install_step prepare_target
+	mkdir -p /live/hdinstall
+	export TARGET=/live/hdinstall
+}
+
+# Synopsis: chroot_it <...>
+#
+# execute the supplied command in the target
+function chroot_it()
+{
+        [ -n "$TARGET" -a $UID -eq 0 ] && chroot $TARGET "$@"
+}
+
+# Synopsis: copy_system_to_target
+#
+# This function copies the system to the target.
+# Therefore $TARGET and all partitions of hd_map have to be mounted
+# this should have be done in the prepare-stage (see prepare_partitions_for_install)
+#
+function copy_system_to_target()
+{
+	send install_step copy_system_to_target
+	emit_progress 0
+	calculate_min_space
+	orig_size="$ESTIMATED_ROOT_MIN"
+	dest_size_before=$(di -dm -fSMu | gawk '/\/live\/hdinstall/{used+=int($3)} END{print int(used)}')
+	dest_size_diff=0
+	
+	cd /live/filesystem
+	cp -a * $TARGET &
+	
+	cp=$!
+	old_percent=0
+	while ps --pid $cp &>/dev/null
+	do
+		dest_size=$(di -dm -fSMu | gawk '/\/live\/hdinstall/{used+=int($3)} END{print int(used)}')
+		dest_size_diff=$(( $dest_size - $dest_size_before ))
+		percent=$((( 100 * $dest_size_diff ) / $orig_size ))
+		if [ "$percent" != "$old_percent" ]; then
+			emit_progress $percent
+			old_percent="$percent"
+		fi
+		sleep 5
+	done
+	
+	sync
+	mkdir -p "$TARGET/proc" "$TARGET/dev" "$TARGET/sys"
+	mount --bind /proc "$TARGET/proc"
+	mount --bind /dev "$TARGET/dev"
+	mount --bind /sys "$TARGET/sys"
+}
+
diff --git a/backend/modules/install_configure b/backend/modules/install_configure
new file mode 100644
index 0000000..28e351e
--- /dev/null
+++ b/backend/modules/install_configure
@@ -0,0 +1,152 @@
+#!/bin/bash
+
+# Synopsis: configure_target_update_files
+#
+# This function is adapted from the Knoppix-Installer
+function configure_target_update_files()
+{
+	send install_step configure_target_update_files
+	# set up hostname
+	cat <<EOF >$TARGET/etc/hosts
+127.0.0.1	localhost
+127.0.1.1	$cfg_hostname
+
+# The following lines are desirable for IPv6 capable hosts
+# (added automatically by netbase upgrade)
+
+::1     ip6-localhost ip6-loopback
+fe00::0 ip6-localnet
+ff00::0 ip6-mcastprefix
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+ff02::3 ip6-allhosts
+EOF
+	echo "$cfg_hostname" > $TARGET/etc/hostname
+	echo "$cfg_hostname" > $TARGET/etc/mailname
+	
+	# remove LiveCD-user from /etc/sudoers
+	cat > "$TARGET/etc/sudoers" <<EOF
+# /etc/sudoers
+#
+# This file MUST be edited with the 'visudo' command as root.
+#
+# See the man page for details on how to write a sudoers file.
+#
+
+Defaults	env_reset
+
+# Host alias specification
+
+# User alias specification
+
+# Cmnd alias specification
+
+# User privilege specification
+root	ALL=(ALL) ALL
+EOF
+	chown root:root "$TARGET/etc/sudoers"
+	chmod 0440 "$TARGET/etc/sudoers"
+	
+	# "normalize" /etc/inittab
+	rm -f "$TARGET/etc/inittab"
+	sed 's/id\:[0-6]\:initdefault\:/id\:5\:initdefault\:/;s/\([1-6]:23\):/\145:/' "$TARGET/usr/share/sysvinit/inittab" > "$TARGET/etc/inittab"
+	
+	# create "real" /tmp with mode 1777
+	rm -f $TARGET/tmp 2>/dev/null
+	mkdir -p $TARGET/tmp
+	chmod 1777 $TARGET/tmp
+
+	# create /etc/mtab as a regular file
+	rm -f $TARGET/etc/mtab
+	touch $TARGET/etc/mtab
+
+	# configure /etc/kernel-pkg.conf
+	if [ -f "$TARGET/etc/kernel-pkg.conf" ]; then
+		perl -pi -e "s/^maintainer.*\=.*/maintainer \:\= $cfg_realname/;s/^email.*\=.*/email \:\= $cfg_username\@$cfg_hostname\.local/" "$TARGET/etc/kernel-pkg.conf"
+		NUMCPUS=$(grep -c "model name" /proc/cpuinfo)
+		[ $NUMCPUS -ge 2 ] && echo CONCURRENCY_LEVEL := $NUMCPUS >> $TARGET/etc/kernel-pkg.conf
+	fi
+	
+	# enable KDE sounds
+	rm -f "$TARGET/home/$cfg_username/.kde/share/config/knotifyrc"
+		
+	# profile
+	cat "$TARGET/usr/share/base-files/profile" > "$TARGET/etc/profile"
+	
+	# For us users use an us-mirror
+	case "$LANGUAGE" in
+		us*)
+			#perl -pi -e "s/ftp2.de.debian.org/ftp.uk.debian.org/" $TARGET/etc/apt/sources.list
+			:
+		;;
+	esac
+	
+	# install hooks
+	if [ "$(ls $TARGET/usr/share/acritoxinstaller/target-config)" ]; then
+		for hook in $TARGET/usr/share/acritoxinstaller/target-config/*
+		do
+			chroot_it "${hook#$TARGET}"
+		done
+	fi
+	
+	# install overlay
+	if [ "$(ls $TARGET/usr/share/acritoxinstaller/target-overlay)" ]; then
+		cp -a --target-directory=$TARGET $TARGET/usr/share/acritoxinstaller/target-overlay/*
+	fi
+
+	# add correct keymap
+	[ -f /etc/sysconfig/keyboard ] && . /etc/sysconfig/keyboard
+
+	[ -n "$KEYTABLE" ] && chroot_it install-keymap "$KEYTABLE" 2>/dev/null
+}
+
+# Synopsis: configure_target_purge_live_only_stuff
+#
+# This function removes everything that is only useful on live-systems
+function configure_target_purge_live_only_stuff()
+{
+	send install_step configure_target_purge_live_only_stuff
+	# remove live-only-packages
+	chroot_it dpkg --purge \
+			busybox \
+			acritoxinstaller \
+			acritoxinstaller-kanotix \
+			live-boot-initramfs-tools \
+			live-boot \
+			live-initramfs \
+			live-build-cgi \
+			live-build \
+			live-helper \
+			live-config-runit \
+			live-config-sysvinit \
+			live-config-upstart \
+			live-config \
+			live-magic \
+			live-manual-epub \
+			live-manual-html \
+			live-manual-odf \
+			live-manual-pdf \
+			live-manual-txt \
+			live-manual \
+			mknbi \
+			syslinux \
+			tftpd-hpa 	&> /dev/null
+	
+	#  disable live config
+	[ -f "$TARGET/etc/default/distro" ] && \
+		perl -pi -e "s/^FLL_DISTRO_MODE\=.*/FLL_DISTRO_MODE\=\"installed\"/" "$TARGET/etc/default/distro"
+	
+	# remove temporary kde- user files
+	rm -f "$TARGET/home/$cfg_username/.DCOPserver_*_*"
+	rm -f "$TARGET/home/$cfg_username/.kde/cache-*"
+	rm -f "$TARGET/home/$cfg_username/.kde/socket-*"
+	rm -f "$TARGET/home/$cfg_username/.kde/tmp-*"
+	rm -f "$TARGET/home/$cfg_username/.*uthority"
+	
+	rm -rf "$TARGET/etc/sysconfig"
+	rm -f "$TARGET/home/$cfg_username/Desktop/install-gui.desktop"
+
+	# remove kdm live shutdown hack
+	rm -f "$TARGET/home/$cfg_username/.kde/shutdown/kdm-force-shutdown-hack"
+}
+
diff --git a/backend/modules/install_main b/backend/modules/install_main
new file mode 100644
index 0000000..bee41af
--- /dev/null
+++ b/backend/modules/install_main
@@ -0,0 +1,302 @@
+#!/bin/bash
+
+# Synopsis: update_fstab_on_target
+#
+# This function is partly adapted from the Knoppix-Installer
+# It creates a new fstab for the new installed system in $TARGET.
+#   * proc, usbfs, sysfs, tmpfs: hardcoded
+#   * all mountpoints of the hd_map
+#   * cdroms, floppy
+#   * remove not needed device links
+function update_fstab_on_target()
+{
+	send install_step update_fstab_on_target
+	emit_progress 0
+	local progress_steps=$(( $(wc -l <<<"$cfg_hdmap") + 2 ))
+	local progress=0
+	
+	# Charset stuff for FAT/NTFS-Filesystems
+	unset utf_option nls
+	if [ "$(locale charmap)" = "UTF-8" ]; then
+		utf_option=",utf8"
+		nls=",nls=utf8"
+	fi
+	chroot_it locale-gen &>/dev/null
+	
+	# Build new /etc/fstab
+	cat <<EOF >$TARGET/etc/fstab
+# /etc/fstab: static file system information.
+#
+# <file system> <mount point>   <type>  <options>       <dump>  <pass>
+proc            /proc           proc    defaults        0       0
+EOF
+
+	[ -x $TARGET/etc/init.d/mountkernfs.sh ] || cat <<EOF >>$TARGET/etc/fstab
+sysfs           /sys            sysfs   defaults        0       0
+tmpfs           /dev/shm        tmpfs   defaults        0       0
+EOF
+
+	while IFS=: read device mountpoint filesystem automount
+	do
+		fstab_options=""; fstab_dump=0; fstab_pass=2; fstab_type=""
+		[ -z "$fstab_type" ] && fstab_type=$filesystem
+		[ -z "$fstab_type" ] && fstab_type=$(get_filesystem $device)
+		[ -z "$fstab_type" ] && fstab_type=auto
+		
+		case "$automount" in
+		auto)
+			fstab_options="defaults";;
+		*)
+			fstab_options="noauto,users";;
+		esac
+		
+		case "$fstab_type" in
+		msdos)
+			fstab_options="${fstab_options},umask=000,quiet${utf_option}"; fstab_pass=0;;
+		vfat)
+			fstab_options="${fstab_options},umask=000,shortname=mixed,quiet${utf_option}"; fstab_pass=0;;
+		esac
+		
+		if [ "$mountpoint" = "/" ]; then
+			fstab_pass=1
+			case $fstab_type in
+			reiser*|xfs|jfs)
+				fstab_options="defaults"
+				;;
+			*)
+				fstab_options="defaults,errors=remount-ro"
+				;;
+			esac
+		elif [ "${mountpoint:0:7}" = "/media/" ]; then
+			# don't run fsck on boot for all /media/* mountpoints
+			fstab_pass=0
+		else
+			# don't run fsck on boot if device is a removable disk (if group of /dev/XXX == floppy)
+			[ "$(stat --format "%G" $device)" = "floppy" ] && fstab_pass=0
+		fi
+		
+		fstab_options="${fstab_options##defaults,}"
+		
+		unset DEV UUID
+		case $device in
+		/dev/mapper/*) ;;
+		/dev/disk/by-uuid/*) DEV=/dev/$(readlink $device|sed s@../../@@)
+				     UUID="UUID=${device#/dev/disk/by-uuid/}"
+				     ;;
+		/dev/*) DEV=$device
+			UUID="UUID=$(get_partition_uuid $device)"
+			;;
+		UUID=*) UUID=$device
+			DEV=/dev/$(readlink /dev/disk/by-uuid/${device#UUID=}|sed s@../../@@)
+			;;
+		esac
+	
+		[ -n "${DEV#/dev/}" ] && echo "# $DEV" >> $TARGET/etc/fstab
+		if [ -n "${UUID#UUID=}" ]; then
+			printf "%-15s %-15s %-7s %-15s %-7s %s\n" "$UUID" "$mountpoint" "$fstab_type" "$fstab_options" "$fstab_dump" "$fstab_pass" >> $TARGET/etc/fstab
+		else
+			# this partition doesn't have an UUID
+			printf "%-15s %-15s %-7s %-15s %-7s %s\n" "$device" "$mountpoint" "$fstab_type" "$fstab_options" "$fstab_dump" "$fstab_pass" >> $TARGET/etc/fstab
+		fi
+		
+		# Remove not needed device links
+		[ "/media/${device##*/}" != "$mountpoint" ] && rmdir "$TARGET/media/${device##*/}" &>/dev/null
+		rm -f "$TARGET/home/$cfg_username/Desktop/${device##*/}"
+		
+		# update progress
+		progress=$[progress+1]; emit_progress $[100*progress/progress_steps]
+	done <<<"$cfg_hdmap"
+
+	# Add swap to /etc/fstab
+	while read device
+	do
+		UUID="$(get_partition_uuid $device)"
+		if [ -z "$UUID" ]; then
+			# swap partition without UUID
+			swapoff $device
+			mkswap $device
+			swapon $device
+			UUID="$(get_partition_uuid $device)"
+		fi
+		[ -z "$UUID" ] && continue # should never happen...
+		
+		printf "%-15s %-15s %-7s %-15s %-7s %s\n" "UUID=$UUID" "none" "swap" "sw" "0" "0" >> $TARGET/etc/fstab
+	done < <(list_swap_partitions)
+	
+	# Add cdrom devices to /etc/fstab
+
+	CDROM=0
+	for c in $(gawk '/name/{for (i=NF;i>=3;i--) {print $i}}' /proc/sys/dev/cdrom/info 2>/dev/null); do
+	 [ -d $TARGET/media/cdrom$CDROM ] || mkdir -p $TARGET/media/cdrom$CDROM
+	 if [ "$CDROM" = "0" ]; then
+	  if [ "$(readlink $TARGET/media/cdrom)" != "cdrom0" ]; then
+	   rm -f $TARGET/media/cdrom
+	   ln -s cdrom0 $TARGET/media/cdrom
+	  fi
+	  if [ "$(readlink $TARGET/cdrom)" != "media/cdrom" ]; then
+	   rm -f $TARGET/cdrom
+	   ln -s media/cdrom $TARGET/cdrom
+	  fi
+	 fi
+	 printf "%-15s %-15s %-7s %-15s %-7s %s\n" "/dev/$c" "/media/cdrom$CDROM" "udf,iso9660" "user,noauto" "0" "0" >> $TARGET/etc/fstab
+	 CDROM=$(($CDROM+1))
+	done
+	if [ "$CDROM" = "0" ]; then
+	 rm -f $TARGET/cdrom $TARGET/media/cdrom
+	fi
+
+	# Add floppy devices to /etc/fstab
+
+	for f in $(ls -d /sys/block/fd* 2>/dev/null); do
+	 [ -d $TARGET/media/floppy${f#/sys/block/fd} ] || mkdir -p $TARGET/media/floppy${f#/sys/block/fd}
+	 printf "%-15s %-15s %-7s %-15s %-7s %s\n" "/dev${f#/sys/block}" "/media/floppy${f#/sys/block/fd}" "auto" "rw,user,noauto" "0" "0" >> $TARGET/etc/fstab
+	done
+	
+}
+
+# Synopsis: update_passwd_on_target
+#
+function update_passwd_on_target()
+{
+    send install_step update_passwd_on_target
+    chroot $TARGET sh -c "usermod --password '$cfg_rootpwd' root"
+    
+    if [ -x $ROOT/usr/sbin/adduser ]; then
+        LC_ALL=C chroot $TARGET adduser --disabled-password --force-badname --no-create-home --gecos "$cfg_realname,,," --uid 1000 "$cfg_username" >/dev/null
+    else
+        chroot $TARGET useradd -c "$cfg_realname,,," "$cfg_username" -u 1000 >/dev/null
+    fi
+
+    chroot $TARGET sh -c "usermod --password '$cfg_userpwd' '$cfg_username'"
+
+    for group in lpadmin scanner; do
+            chroot $TARGET addgroup --system $group >/dev/null 2>&1
+    done
+    for group in adm audio cdrom dialout floppy video plugdev dip lpadmin lp scanner powerdev netdev; do
+            chroot $TARGET adduser --force-badname "$cfg_username" $group >/dev/null 2>&1
+    done
+}
+
+# Synopsis: copy_home_to_target
+#
+# This function copies the home directory from the live user
+function copy_home_to_target()
+{
+	send install_step copy_home_to_target
+	#check if already data is there then stop
+	if [ -d "$TARGET/home/$cfg_username" ]; then
+		chroot "$TARGET" chown -R "$cfg_username":"$cfg_username" "/home/$cfg_username"
+		return 0
+	fi
+
+	if [ -d "/home/$FLL_LIVE_USER/.kde" ]; then
+		rm -rf "$TARGET/home/$FLL_LIVE_USER"
+		cp -a "/home/$FLL_LIVE_USER" "$TARGET/home"
+		[ "$cfg_username" != "$FLL_LIVE_USER" ] && mv "$TARGET/home/$FLL_LIVE_USER" "$TARGET/home/$cfg_username"
+	else
+		cp -a "$TARGET/etc/skel" "$TARGET/home"
+		mv "$TARGET/home/skel" "$TARGET/home/$cfg_username"
+	fi
+
+	# update home-path in user's config files
+	if [ "$cfg_username" != "$FLL_LIVE_USER" ]; then
+		rm -f "$TARGET/home/$cfg_username/.mozilla/appreg"
+		rm -f "$TARGET/home/$cfg_username/.mozilla/pluginreg.dat"
+		if [ -e "$TARGET/home/$cfg_username/.mozilla/$FLL_LIVE_USER" ]; then
+			[ -e "$TARGET/home/$cfg_username/.mozilla/default" ] || mv "$TARGET/home/$cfg_username/.mozilla/$FLL_LIVE_USER" "$TARGET/home/$cfg_username/.mozilla/default"
+			perl -pi -e 's/.*general.useragent.*\n?//' "$TARGET/home/$cfg_username/.mozilla/default/*/prefs.js"
+		fi
+
+		OLDHOME="/home/$FLL_LIVE_USER"
+		NEWHOME="/home/$cfg_username"
+		PART="$TARGET"
+		for f in $(find "$PART$NEWHOME" -exec grep -ls "$OLDHOME" {} \;|grep -v $0); do
+			perl -pi -e "s|$OLDHOME|$NEWHOME|g" "$f"
+		done
+	fi
+
+	# revert to plain debian .bashrc
+	cat "$TARGET/etc/skel/.bashrc" > "$TARGET/home/$cfg_username/.bashrc"
+	
+	# revert kdesu/sudo workaround
+	rm -f "$TARGET/home/$cfg_username/.kde/share/apps/konsole/su.desktop" \
+		"$TARGET/home/$cfg_username/.kde/share/apps/konsole/sumc.desktop" \
+		"$TARGET/home/$cfg_username/.kde/share/config/kdesurc" \
+		"$TARGET/home/$cfg_username/.kde4/share/config/kdesurc" \
+		"$TARGET/home/$cfg_username/.su-to-rootrc"
+        rm -rf "$TARGET/home/$cfg_username/.gconf/apps/gksu"
+	
+	# force kde first time configuration
+	if [ -f /etc/skel/.kde/share/config/kpersonalizerrc ]; then
+		perl -pi -e 's/FirstLogin=false/FirstLogin=true/g' "$TARGET/etc/skel/.kde/share/config/kpersonalizerrc"
+
+		# The users kde should be perfect, unless we just copied from template ...
+		[ ! -d "/home/$FLL_LIVE_USER/.kde" ] && perl -pi -e 's/FirstLogin=false/FirstLogin=true/g' "$TARGET/home/$cfg_username/.kde/share/config/kpersonalizerrc"
+	fi
+	
+	chroot "$TARGET" chown -R "$cfg_username":"$cfg_username" "/home/$cfg_username"
+}
+
+# Synopsis: copy_etc_to_target
+#
+# This function is partly adapted from the Knoppix-Installer
+function copy_etc_to_target()
+{
+	send install_step copy_etc_to_target
+	# UTC=no fix
+	if [ -f /etc/default/rcS -a -f $TARGET/etc/default/rcS ]; then
+		cat /etc/default/rcS > $TARGET/etc/default/rcS
+	fi
+	
+	cp -a /etc/timezone $TARGET/etc/timezone
+	cp -a /etc/localtime $TARGET/etc/localtime
+	cp -a /etc/default/keyboard $TARGET/etc/default/keyboard
+	cp -a /etc/default/locale $TARGET/etc/default/locale
+	cp -a /etc/locale.gen $TARGET/etc/locale.gen
+	#cp -a /etc/console/* $TARGET/etc/console/
+	#cp -a /etc/environment $TARGET/etc/environment
+	
+	# network
+	rm -f $TARGET/etc/network/interfaces
+	cp -a /etc/network/interfaces $TARGET/etc/network/interfaces
+
+	# create locales
+	chroot_it locale-gen &>/dev/null
+	chroot_it dpkg-reconfigure -fnoninteractive keyboard-configuration &>/dev/null
+
+	# nvidia autoinstall trigger
+	chroot_it update-rc.d -f kanotix remove &>/dev/null
+	rm -f $TARGET/etc/init.d/kanotix
+
+	# xorg.conf
+	debconf-get-selections | grep -e xserver-xorg -e tzdata | chroot_it debconf-set-selections &>/dev/null
+	rm -f $TARGET/etc/X11/xorg.conf*
+	chroot_it dpkg-reconfigure -phigh xserver-xorg &>/dev/null
+
+	# Save ALSA sound volume
+	if [ -e /proc/asound/modules ] && [ -x /usr/sbin/alsactl ]; then
+		/usr/sbin/alsactl store
+		if [ -f /var/lib/alsa/asound.state ]; then
+			cp /var/lib/alsa/asound.state "$TARGET/var/lib/alsa"
+		fi
+	fi
+	
+	# KDM: auto login
+	kdmrc=$TARGET/etc/kde3/kdm/kdmrc
+	[ -f $TARGET/etc/kde4/kdm/kdmrc ] && kdmrc=$TARGET/etc/kde4/kdm/kdmrc
+	if [ -e $kdmrc ]; then
+		perl -pi -e "s|^[#\s]*(AutoLoginUser).*|\1=$cfg_username|"  $kdmrc
+		[ "$cfg_autologin" = "on" ] && autologin="true" || autologin="false"
+		perl -pi -e "s|^[#\s]*(AutoLoginEnable).*|\1=$autologin|"  $kdmrc
+	fi
+
+	# Crypto
+	cp -a /etc/crypttab $TARGET/etc/crypttab
+
+	# PolicyKit
+	if [ -e /etc/PolicyKit/PolicyKit.conf -a -e $TARGET/etc/PolicyKit/PolicyKit.conf ]; then
+		sed '/<!-- .* user in live session -->/d; s/user="'"$FLL_LIVE_USER"'"/user="'"$cfg_username"'"/;' \
+		< /etc/PolicyKit/PolicyKit.conf > $TARGET/etc/PolicyKit/PolicyKit.conf
+	fi
+}
+
diff --git a/backend/modules/install_services b/backend/modules/install_services
new file mode 100644
index 0000000..e3b74c3
--- /dev/null
+++ b/backend/modules/install_services
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# Synopsis: configure_target_services
+#
+# This function configures the services and their autostart
+function configure_target_services()
+{
+    send install_step configure_target_services
+    # prepare ssh
+    if [ /etc/init.d/ssh ]; then
+            if [ ! -e "$TARGET/etc/ssh/ssh_host_rsa_key" ]; then
+                    ssh-keygen -q -t rsa -f "$TARGET/etc/ssh/ssh_host_rsa_key" -C '' -N ''
+            fi
+            if [ ! -e "$TARGET/etc/ssh/ssh_host_dsa_key" ]; then
+                    ssh-keygen -q -t dsa -f "$TARGET/etc/ssh/ssh_host_dsa_key" -C '' -N ''
+            fi
+    fi
+}
+
diff --git a/backend/modules/partitions b/backend/modules/partitions
new file mode 100644
index 0000000..0d59323
--- /dev/null
+++ b/backend/modules/partitions
@@ -0,0 +1,251 @@
+#!/bin/bash
+
+# Synopsis: list_all_disks
+#
+# This function lists all disks
+# Output example:
+#   /dev/sda
+#   /dev/sdb
+function list_all_disks()
+{
+	awk -vli="$(awk '{if($2=="sd") print $1;}' /proc/devices)" 'BEGIN{m=split(li,list," ")}{for(i=1;i<=m;i++) if($1==list[i]&&$2%16==0) print "/dev/"$4;}' /proc/partitions
+}
+
+# Synopsis: send_list_of_disks
+#
+# This script sends a list of all disks with size-details to the frontend.
+# Output example:
+#   <installer data> list_of_disks
+#   /dev/sda 10001908224
+#   /dev/sdb 64023257088
+function send_list_of_disks()
+{
+	send data list_of_disks
+	list_all_disks | partitions_size_details
+}
+
+# Synopsis: list_all_partitions
+#
+# This function lists all partitions from all disks
+# Output example:
+#   /dev/sda1
+#   /dev/sda2
+#   /dev/sdb5
+function list_all_partitions()
+{
+	awk -vli="$(awk '{if($2=="sd") print $1;}' /proc/devices)" 'BEGIN{m=split(li,list," ")}{for(i=1;i<=m;i++) if($1==list[i]&&$2%16!=0) print "/dev/"$4;}' /proc/partitions
+}
+
+# Synopsis: (e.g.) list_all_partitions | partitions_usage_details
+#
+# This function lists usage details for a list of partitions from STDIN
+# Output example:
+#   /dev/sda1 filesystem reiserfs
+#   /dev/sda2 filesystem ext3
+#   /dev/sda3 other swap
+function partitions_usage_details()
+{
+        while read part x
+	do
+		[ -e "$part" ] || continue
+                ID_FS_USAGE="$(/sbin/blkid -p -s USAGE -o value "$part")"
+                [ "$ID_FS_USAGE" ] || continue
+                ID_FS_TYPE="$(/sbin/blkid -p -s TYPE -o value "$part")"
+		echo "$part $ID_FS_USAGE $ID_FS_TYPE"
+        done
+}
+
+# Synopsis: (e.g.) list_all_partitions | partitions_size_details
+#
+# This function lists size details for a list of partitions from STDIN
+# Output example:
+#   /dev/sda 64023257088 
+#   /dev/sda1 10001908224
+function partitions_size_details()
+{
+        while read part x
+	do
+		[ -e "$part" ] || continue
+		echo "$part $(blockdev --getsize64 "$part")"
+        done
+}
+
+# Synopsis: list_partitions [-type <filesystem>] [-disk <disk>] [-usage <usage>]
+#
+# This function lists all partitions that match all the given parameters
+# Output example:
+#   /dev/sda1
+#   /dev/sda2
+#   /dev/sdb5
+function list_partitions()
+{
+        unset required_type required_disk;
+        required_usage="filesystem"
+
+        while [ "$1" ]
+        do
+                case $1 in
+                -type)
+                        required_type="$2";
+                        shift
+                        ;;
+                -disk)
+                        required_disk="$2";
+                        shift
+                        ;;
+                -usage)
+                        required_usage="$2";
+                        shift
+                        ;;
+                esac
+                shift
+        done
+
+        while IFS=" " read part usage type
+        do
+                if [ "$usage" = "$required_usage" ]; then
+                        [ "$required_type" -a "$required_type" != "$(get_filesystem $part)" ] && continue
+                        [ "$required_disk" ] && ! echo "$part" | grep -q "^$required_disk" && continue
+                        echo $part
+                fi
+        done < <(list_all_partitions | partitions_usage_details)
+}
+
+
+# Synopsis: list_linux_partitions
+#
+# This function lists all partitions from the disks (by list_all_disks) which have partition Id 0x83 (= Linux)
+# Output example:
+#   /dev/sda4
+#   /dev/sdb1
+function list_linux_partitions()
+{
+    for disk in $(list_all_disks)
+    do
+        LC_ALL=C sfdisk -l "$disk" 2>/dev/null | sed 's/[*+]//g;' | gawk '/^\/dev/{if($6 == 83){print $1}}'
+    done
+}
+
+# Synopsis: list_swap_partitions
+#
+# This function lists all partitions from the disks (by list_all_disks) which have partition Id 0x82 (= Linux swap)
+# Output example:
+#   /dev/sda4
+#   /dev/sdb1
+function list_swap_partitions()
+{
+    for disk in $(list_all_disks)
+    do
+        LC_ALL=C sfdisk -l "$disk" 2>/dev/null | sed 's/[*+]//g;' | gawk '/^\/dev/{if($6 == 82){print $1}}'
+    done
+}
+
+# Synopsis: get_disk <partition>
+#
+# This function returns the disk containing the given partition
+# Output example:
+#   /dev/sda
+function get_disk()
+{
+	path="$(udevadm info -q path -n "$1")"
+	while [ "$path" ]
+	do
+		udevadm info -q env -p "$path" | grep -q "^DEVTYPE=disk$" && break
+		path="$(dirname "$path")"
+	done
+	[ "$path" ] && udevadm info --root -q name -p "$path" && return 0
+	return 1
+}
+
+# Synopsis: is_removeable <disk/partition>
+#
+# This function checks if a disk or partition is removeable (returncode 0) or not (returncode 1)
+function is_removeable()
+{
+        DEV="$(get_disk "$1")"
+        REM=$(cat /sys/block/${DEV#/dev/}/removable 2>/dev/null)
+        case $(readlink -f /sys/block/${DEV#/dev}) in *usb*) REM=1; esac
+        [ "$REM" = "1" ] && return 0 || return 1
+}
+
+# Synopsis: list_possible_root_partitions
+#
+# This script lists all possible root-partitions.
+#   * all linux-partitions and all partitions that have a linux-filesystem
+# Output example:
+#   /dev/sda4
+#   /dev/sdb1
+function list_possible_root_partitions()
+{
+	( list_linux_partitions; list_partitions -type Linux ) | sort -u
+}
+
+# Synopsis: send_possible_root_partitions
+#
+# This script sends a list of all possible root-partitions with size-details to the frontend.
+# Output example:
+#   <installer data> possible_root_partitions
+#   /dev/sda4 10001908224
+#   /dev/sdb1 64023257088
+function send_possible_root_partitions()
+{
+	send data possible_root_partitions
+	list_possible_root_partitions | partitions_size_details
+}
+
+# Synopsis: send_possible_root_filesystems
+#
+# This script sends a list of all possible filesystems to format the root-partition with to the frontend.
+# Output example:
+#   <installer data> possible_root_filesystems
+#   ext4
+#   ext3
+#   reiserfs
+function send_possible_root_filesystems()
+{
+	send data possible_root_filesystems
+	for fs in ext4 ext3 reiserfs xfs jfs; do echo $fs; done
+}
+
+# Synopsis: get_filesystem <device>
+#
+# This function returns the filesystem on the supplied device.
+# Returned filesystem could be:
+#   ext4, ext3, ext2, reiserfs, xfs, minix, hfs, efs, reiser4,
+#   jfs, iso9660, vfat, ntfs, swap, oracleasm, jbd, gfs,
+#   gfs2, vxfs, romfs, bfs, cramfs, qnx4, udf, ufs, hpfs,
+#   sysv, swsuspend, ocfs, ocfs2
+# Output example:
+#   ext4
+function get_filesystem()
+{
+        [ -x /sbin/blkid ] && /sbin/blkid -s TYPE -o value "$1"
+}
+
+# Synopsis: get_filesystem_type [-fs <filesystem>]|<device>
+#
+# This function returns the type of the filesystem on the supplied device (or filesystem).
+# Returned type could be:
+#   Linux, CD-ROM, Windows, Swap, (not recognized type -> filesystem)
+# Output example:
+#   Linux
+function get_filesystem_type()
+{
+        if [ "$1" = "-fs" ]; then
+                filesystem="$2"
+        else
+                filesystem="$(get_filesystem "$1")"
+        fi
+        case $filesystem in
+        ext4|ext3|ext2|reiserfs|xfs|minix|hfs|efs|reiser4|jfs) echo Linux;;
+        iso9660) echo CD-ROM;;
+        vfat|ntfs) echo Windows;;
+        swap) echo Swap;;
+        *) echo "$filesystem";;
+        esac
+        # Other (not recognized) Filesystems:
+        # oracleasm, jbd, gfs, gfs2, vxfs, romfs, bfs, cramfs,
+        # qnx4, udf, ufs, hpfs, sysv, swsuspend, ocfs, ocfs2
+}
+
+
diff --git a/backend/modules/partmgr b/backend/modules/partmgr
new file mode 100644
index 0000000..c773e8d
--- /dev/null
+++ b/backend/modules/partmgr
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+function run_partmgr()
+{
+	case "$1" in
+	cfdisk|fdisk)
+		TERM=xterm /sbin/"$1" "$2"
+		;;
+	gparted|qtparted)
+		"$1" "$2"
+		;;
+	esac
+}
+
+function send_partition_managers()
+{
+	send data partition_managers
+        for app in cfdisk gparted qtparted fdisk
+        do
+                which $app &>/dev/null || continue
+		echo $app
+	done
+}
+