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#!/bin/bash
#
# /sbin/mkinstall - System Installer - version 1.9.1 - 2003-08-02
# This file is part of the Formilux project : http://formilux.ant-computing.com/
#
# Copyright (C) 2001-2003 Benoit Dolez & Willy Tarreau
#       mailto: benoit@ant-computing.com,willy@ant-computing.com
#
# This program is licenced under GPLv2 ( http://www.gnu.org/licenses/gpl.txt )

cdlist=( )
names=( )
sizes=( )
parts=( )

# this utility uses a few temporary files :
#
# /tmp/fsmnt  : <device><space><mount_point>
#    device=/dev/hda, /dev/sda1...
#    space=exactly one space
#    mount_mount=/home, /var, /, ..., mbr, cdrom, swap, <empty string when not affected>
# /tmp/fsid   : <device><space><hex_id><space><os_name>
# /tmp/fstype : <device><space><fstype>
# /tmp/fslist : <device>
# /tmp/fssize : <device><space><size_in_kB>
# /tmp/sourcepkg : symlink to the source packages directory

# give it a number suffixed with a k,M,G,T, and it will return it reduced to
# the nearest power of 1024 suffixed with k,M,G or T
humansize() {
   local pow val
   local -a suff=( "" k M G T P )
   case "${1##[0-9]*}" in
      k) pow=1;;
      M) pow=2;;
      G) pow=3;;
      T) pow=4;;
      P) pow=5;;
      *) pow=0;;
   esac
   val=${1%%[a-zA-Z]*}
   # we don't return values lower than 10 when possible
   while [ $val -ge 10240 ]; do
      ((pow++))
      ((val/=1024))
   done  
   REPLY=$val${suff[$pow]}
   echo -n $REPLY
}

detect_cdrom() {
    cdlist=($(grep -i '^drive name:' /proc/sys/dev/cdrom/info |cut -f2 -d:))
    CDROMS="${cdlist[*]}"
}

detect_disks() {
    local i j major minor size name rest

    names=( )
    sizes=( )
    parts=( )

    rm -f /tmp/partitions
    tail +3 /proc/partitions | sort -k4.1 >/tmp/partitions
    while read major minor size name rest; do
	if ((i >= 0)); then
	    names[i]=$name
	    sizes[i]=$size
	    parts[i]=1
	fi
	((i++))
    done < /tmp/partitions
    
    i=0
    while ((i < ${#names[@]})); do
    if [ -n "${names[i]}" ]; then
	j=0 
	while ((j < ${#names[@]})); do
	    if [ $i -ne $j -a -n "${names[j]}" -a -z "${names[j]##${names[i]}*}" ]; then
		names[j]=""
		((parts[i]+=${parts[j]}))
	    fi
	    ((j++))
	done
    fi
    ((i++))
    done

    i=0 j=0
    while ((i < ${#names[@]})); do
	if [ -n "${names[i]}" -a "${cdlist[*]##${names[i]}}" = "${cdlist[*]}" ]; then
	    names[j]=${names[i]}
	    sizes[j]=${sizes[i]}
	    ((parts[j]=${parts[i]}-1))
	    ((j++))
	fi
	
	if ((i >= j)); then
	    unset names[i] parts[i] sizes[i]
	    names=("${names[@]}") parts=("${parts[@]}") sizes=("${sizes[@]}")
	else
	    ((i++))
	fi
    done
    # now we have the list of the hard disks :
    #   names[] contains their name in /dev
    #   sizes[] contains their size in blocks (1 kB)
    #   parts[] contains their number of partitions
}

# This function collects some information in /proc and other places.
# It should be called ASAP.

function init {
    #umount /mnt/cdrom >/dev/null 2>&1 # to avoid stupid recursive copying !
    detect_cdrom
    detect_disks
    mkdir -p $ROOTDIR >/dev/null 2>&1
}

# displays the main menu
# if an arg is passed, it will be used as the name entry of the default action.
# it returns the name of the entry in REPLY
# returns 0 if OK, 1 if Cancel/Exit.
function menu_main {
    REPLY=$(dialog --title " Formilux Installation Utility " --no-cancel --no-shadow ${1:+--default-item $1 }\
	   --menu "Installation Menu\n\n   Press <Up>/<Down> to select an item.\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to confirm your choice." 24 80 14 \
	  "PART" "Configure Partitions and File Systems" \
          "SOURCE" "Select Packages Source" \
	  "PKG" "Select which Packages to Install" \
	  "CONFIG" "Build Configuration" \
	  "SAVE" "Save Current Configuration" \
	  "LILO" "Run LILO" \
	  "UNMOUNT" "Unmount all File Systems" \
	  "SHELL" "Get Access to a Shell" \
	  "EXIT" "Exit this Utility" 2>&1 | grep -v EXIT)
    [ -n "$REPLY" ]
}


# presents a list of hard disks and lets the user choose one.
# the default one can be passed in $1
# returns 0 if OK, 1 if Cancel/Exit.
function menu_harddisk {
    local -a args=( )
    local i=0
    local model
    while ((i < ${#names[@]})); do
	model='unknown model'
	[ -e "/proc/ide/${names[i]}/model" ] && model=$(</proc/ide/${names[i]}/model)
	args=("${args[@]}" "${names[i]}" "$model, $(humansize ${sizes[i]}k)B, ${parts[i]} part.")
	((i++))
    done
	
    REPLY=$(dialog --title " Formilux Installation Utility " --no-shadow  ${1:+--default-item $1 } --menu "\nSelect a Hard Disk to Configure\n\n   Press <Up>/<Down> to select an item.\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to confirm your choice." 24 80 12 "${args[@]}" "EXIT" "Exit this menu"  2>&1 |grep -v EXIT)
    [ -n "$REPLY" ]
}

# presents a list of  hard disks partitions and lets the user choose one.
# the disk is passed in $1
# the default one can be passed in $2
# returns 0 if OK, 1 if Cancel/Exit.
function menu_partition {
    local -a args=( )
    local dev=$1
    local disk=${1##/dev/}
    local def=$2
    local mnt
    local device size id syst rest

    for device in $(grep "^$dev" /tmp/fslist 2>/dev/null); do
	size=$(grep "^$device " /tmp/fssize 2>/dev/null |cut -f2 -d' ')
	mnt=$(grep "^$device " /tmp/fsmnt 2>/dev/null |cut -f2 -d' ')
	id=$(grep "^$device " /tmp/fsid 2>/dev/null |cut -f2 -d' ')
	syst=$(grep "^$device " /tmp/fsid 2>/dev/null |cut -f3 -d' ')
	type=$(grep "^$device " /tmp/fstype 2>/dev/null |cut -f2 -d' ')
	if [ -z "$mnt" ]; then
	    def=${def:-${device##/dev/}}
	    mnt="not assigned"
	else
	    mnt="assigned to $mnt"
	fi
	if [ -z "$type" ]; then
	    def=${def:-${device##/dev/}}
	    type="not formated"
	else
	    type="type $type"
	fi
	args=("${args[@]}" "${device##/dev/}" "$(humansize ${size}k)B, Id 0x$id($syst), $type, $mnt")
    done

    def=${def:-EXIT}
    args=("${args[@]}" "CLEAR" "Clear ALL partitions on this disk" "FDISK" "Run fdisk on this disk")

    REPLY=$(dialog --title " Formilux Installation Utility " --no-shadow  ${def:+--default-item $def} --menu "\nSelect a Partition\n\n   Press <Up>/<Down> to select an item.\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to confirm your choice." 24 80 12 "${args[@]}" "EXIT" "Exit this menu"  2>&1 |grep -v EXIT)
    [ -n "$REPLY" ]
}

# reads the partition table on a disk and updates the associated files :
#   /tmp/fslist, /tmp/fssize, /tmp/fsid, /tmp/fsmnt, /tmp/fstype
# the disk device is passed in $1 (/dev/xxx). There's no return code.
function disk_read_part {
    local dev=$1
    local disk=${1##/dev/}
    local device begin end cyl size id syst rest file

    rm -f /tmp/sfdisk.${disk//\//.}
    for file in fslist fssize fsid; do
	grep -v "^$dev" /tmp/$file 2>/dev/null >/tmp/${file}-; mv /tmp/${file}- /tmp/$file
    done

    for file in fsmnt fstype; do
	grep "^$dev" /tmp/$file 2>/dev/null >/tmp/$file.${disk//\//.}
	grep -v "^$dev" /tmp/$file 2>/dev/null >/tmp/${file}-; mv /tmp/${file}- /tmp/$file
    done

    sfdisk -l $dev | tr '*' ' ' | grep '^/dev/' >/tmp/sfdisk.${disk//\//.}
    while read device begin end cyl size id syst rest; do
	# let's ignore empty and extended partitions
	[ "$id" = "0" -o "$id" = "5" ] && continue
	size=${size%+}
	echo "$device" >> /tmp/fslist
	echo "$device $size" >> /tmp/fssize
	echo "$device $id $syst" >> /tmp/fsid
	if [ "$id" != "82" ] || grep -q "^$device " /tmp/fsmnt.${disk//\//.} && ! grep -q "^$device swap" /tmp/fsmnt.${disk//\//.} ; then
	    grep "^$device " /tmp/fsmnt.${disk//\//.} >> /tmp/fsmnt
	    grep "^$device " /tmp/fstype.${disk//\//.} >> /tmp/fstype
	else
	    echo "$device swap" >> /tmp/fsmnt
	    # we want to keep a trace of the format status of the swap partition
	    # instead of assuming it has already been formated
	    grep "^$device " /tmp/fstype.${disk//\//.} >> /tmp/fstype
	    #echo "$device swap" >> /tmp/fstype
	fi
    done < /tmp/sfdisk.${disk//\//.} 
    rm -f /tmp/sfdisk.${disk//\//.} 
}

# presents a list of possible actions for a partition :
# - change its mount point
# - format it
# the partition is passed in $1
# if a default choice should be proposed, its name must be in $2
# returns 0 if OK, 1 if Cancel/Exit.
function menu_setupfs {
    local -a args=( )
    local dev=$1
    local def size type strext2s strext2l strext3 strreiser
    local mnt

    def=$2
    mnt=$(grep "^$dev " /tmp/fsmnt 2>/dev/null |cut -f2 -d' ')
    [ -z "$mnt" ] && { mnt="not assigned" ; def=${def:-"MNT"}; }

    type=$(grep "^$dev " /tmp/fstype 2>/dev/null |cut -f2 -d' ')
    [ -z "$type" ] && type="not formated"

    size=$[ ($(grep "^$dev " /tmp/fssize 2>/dev/null | cut -f2 -d' ')+0) / 1024 ]

    args=("MNT" "Change the mount point ($mnt)")

    if [ "$mnt" = "swap" ]; then
	args=("${args[@]}" "SWAP" "* mkswap $dev (format as swap)")
	args=("${args[@]}" "SWAPC" "  mkswap -c $dev (format and check)")
	def=${def:-SWAP}
    else
	strext2s="mke2fs -b 1024 -m 1 -s 1 $dev (format as small Ext2)"
	strext2l="mke2fs -b 4096 -s 1 $dev (format as large Ext2)"
	strext3="mke2fs -b 4096 -s 1 -j $dev (format as Ext3)"
	strreiser="mkreiserfs -h r5 $dev (format as ReiserFS)"
	if [ $size -lt 64 ]; then
	    strext2s="* $strext2s"
	    strext2l="  $strext2l"
	    strext3="  $strext3"
	    strreiser="  $strreiser"
	    def=${def:-EXT2S}
	else
	    strext2s="  $strext2s"
	    strext2l="  $strext2l"
	    strext3="* $strext3"
	    strreiser="  $strreiser"
	    def=${def:-EXT3}
	fi

	args=("${args[@]}" "EXT2S" "$strext2s" "EXT2L" "$strext2l" "EXT3" "$strext3" "REISER" "$strreiser" )
    fi
    args=("${args[@]}" "SHELL" "Get Access to a Shell")
    
    REPLY=$(dialog --title " Formilux Installation Utility " --no-shadow  ${def:+--default-item $def} --menu "\nFormat and Mount Point\n\nChoose a mount point for this partition, then select a format command to format it and set its type. The '*' indicates the recommended format.\n\n   Press <Up>/<Down> to select an item.\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to confirm your choice." 24 80 8 "${args[@]}" "EXIT" "Exit this menu"  2>&1 |grep -v EXIT)
    [ -n "$REPLY" ]
}


# lets the user change a mount point for a partition.
# the partition is passed in $1
# returns 0 if something changed, else 1.
function menu_mount_point {
    local mnt dev type id name
    dev=$1
    mnt=$(grep "^$dev " /tmp/fsmnt 2>/dev/null |cut -f2 -d' ')
    id=$(grep "^$dev " /tmp/fsid 2>/dev/null |cut -f2 -d' ')
    name=$(grep "^$dev " /tmp/fsid 2>/dev/null |cut -f3 -d' ')
    type=$(grep "^$dev " /tmp/fstype 2>/dev/null |cut -f2 -d' ')

    REPLY=$mnt
    [ -z "$REPLY" -a "$id" = "82" ] && REPLY="swap"
    [ -z "$REPLY" ] && ! grep -q " /boot$" /tmp/fsmnt && REPLY="/boot"
    [ -z "$REPLY" ] && ! grep -q " /$" /tmp/fsmnt && REPLY="/"
    [ -z "$REPLY" ] && ! grep -q " /var$" /tmp/fsmnt && REPLY="/var"
    [ -z "$REPLY" ] && ! grep -q " /home$" /tmp/fsmnt && REPLY="/home"

    REPLY=$(dialog --title " Formilux Installation Utility " --no-shadow --inputbox "Enter the mount point for partition $dev\n${id:+Partition Id=$id($name)}${type:+${id:+, }Formated as $type}\nEnter 'swap' to force it to become swap\n\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to confirm your choice." 12 60 $REPLY 2>&1 || echo $mnt)
    if [ "$REPLY" != "$mnt" ]; then
	(grep -v "^$dev " /tmp/fsmnt 2>/dev/null; echo "$dev $REPLY") >/tmp/fsmnt-
	mv /tmp/fsmnt- /tmp/fsmnt
	return 0
    else
	return 1
    fi
}


# lets the user change the package directory
# the entry is checked to be a valid directory
# returns 0 if something changed, else 1.
function menu_pkg_dir {
    local old

    old=$(readlink /var/flx-pkg 2>/dev/null)
    REPLY=$old
    while : ; do
	REPLY=$(dialog --title " Formilux Installation Utility " --no-shadow --inputbox "Enter the new packages directory\nCurrently set to '$old'\n\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to confirm your choice." 12 60 $REPLY 2>&1 || echo $old)
	if [ "$REPLY" != "$old" ]; then
	    if [ -d "$REPLY/." ]; then
		PKGDIR=$REPLY
		rm -f /var/flx-pkg
		ln -sf $REPLY /var/flx-pkg
		return 0
	    else
		dialog --title " Formilux Installation Utility " --msgbox "'$REPLY' is not a valid directory. Please try again, or press [Cancel].\n" 8 60
	    fi
	else
	    # cancel or no changes
	    return 1
	fi
    done
}

# ask the user about the desired source of packages for the installation
function menu_select_source {
    local -a args=( )
    args=("CDROM" "CD-ROM" "DISK" "Hard disk or USB storage device" "NFS" "Remove file-system over NFS" "DIR" "Pre-mounted directory")
    REPLY=$(dialog --title " Formilux Installation Utility " --no-shadow --menu "\nSource Packages Selection\n\nChoose from which medium the source packages will be fetched.\n\n   Press <Up>/<Down> to select an item.\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to confirm your choice." 24 80 8 "${args[@]}" "EXIT" "Exit this menu"  2>&1 |grep -v EXIT)
    [ -n "$REPLY" ]
}


# ask the user about the desired source cdrom
# returns 0 if the CD could be mounted, 1 otherwise.
function menu_select_cdrom {
    local -a args=( )
    local cdrom

    umount -l /mnt/cdrom >/dev/null 2>&1
    rm -f /dev/cdrom
    rm -f /var/flx-pkg
    PKGDIR=
    case ${#cdlist[@]} in
	0)
	    dialog --title " Formilux Installation Utility " --msgbox "No CD-ROM device was detected on this system. Please load manually any appropriate module or choose another source medium." 12 60 ;
	    rm -f /var/flx-pkg
	    return 1
	    ;;
	1)
	    ln -sf ${cdlist[0]} /dev/cdrom
	    if mount /mnt/cdrom >/dev/null 2>&1 ; then
		PKGDIR=/mnt/cdrom/pkg
		ln -s $PKGDIR /var/flx-pkg
		dialog --title " Formilux Installation Utility " --msgbox "/dev/${cdlist[0]} has been selected as the only CD-ROM device, and mounted successfully.\n" 8 60
		return 0
	    else
		dialog --title " Formilux Installation Utility " --msgbox "/dev/${cdlist[0]} has been selected as the only CD-ROM device, but could not be mounted. Please insert a valid CD-ROM and try again.\n" 8 60
		return 1
	    fi
	    ;;
    esac

    args=("AUTO" "Automatically find which drive contains a CD")
    for cdrom in "${cdlist[@]}"; do
	if [ -e "/proc/ide/$cdrom/model" ]; then
	    args=("${args[@]}" "$cdrom" "$(cat /proc/ide/$cdrom/model)")
	elif [ -z "${cdrom##sr*}" -o -z "${cdrom##scd*}" ]; then
	    args=("${args[@]}" "$cdrom" "SCSI CD-ROM")
	else
	    args=("${args[@]}" "$cdrom" "Unknown CD-ROM model")
	fi
    done

    cdrom="${args[0]}"
    while [ -z "$PKGDIR" ]; do
	rm -f /dev/cdrom
	REPLY=$(dialog --title " Formilux Installation Utility " --no-shadow --default-item "$cdrom" --menu "\nCD-ROM\n\nSelect the CD-ROM drive which contains the Formilux CD-ROM you want to use for the installation.\n\n   Press <Up>/<Down> to select an item.\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to confirm your choice." 24 80 8 "${args[@]}" "EXIT" "Exit this menu"  2>&1 |grep -v EXIT)
	cdrom=$REPLY
	case "$REPLY" in
	    "")
		return 1
		;;
	    AUTO)
		findcdrom
		if [ ! -e /dev/cdrom ]; then
		    dialog --title " Formilux Installation Utility " --msgbox "No drive containing a valid CD-ROM was found. Please insert a valid CD-ROM and try again.\n" 8 60
		    continue
		fi
		;;
	    *)
		ln -sf $REPLY /dev/cdrom
		;;
	esac
	if mount /mnt/cdrom >/dev/null 2>&1; then
	    PKGDIR=/mnt/cdrom/pkg
	    dialog --title " Formilux Installation Utility " --msgbox "/dev/$(readlink /dev/cdrom) has been selected as the new CD-ROM device, and mounted successfully.\n" 8 60
	    return 0
	else
	    dialog --title " Formilux Installation Utility " --msgbox "/dev/$(readlink /dev/cdrom) has been selected as the new CD-ROM device, but could not be mounted. Please insert a valid CD-ROM and try again.\n" 8 60
	fi
    done
    return 1
}


# ask the user a question to which he can reply by "yes" or "no".
# A simple message is passed in $1
# if $2 is NOT EMPTY, the default response will be NO.
# returns 0 if No, 1 if Yes
function menu_yesno {
    dialog --title " Formilux Installation Utility " --no-shadow  ${2:+--defaultno} --yesno "$1" 12 65
}

# user interface functions
function ask {
        echo -n "$1 [$2] : "; read 
        if [ "$REPLY" = "" ]; then REPLY=$2; fi
}

function yesno {
        echo -n "$1 [$2] : "; read ; REPLY=`echo $REPLY | cut -c1`
        if [ "$REPLY" = "" ]; then REPLY=$2; fi
        if [ "$REPLY" = o -o "$REPLY" = y -o "$REPLY" = Y ]; then
           REPLY="y"
        fi
}

#
function check_directories {
    if [ ! -d $ROOTDIR/etc/. ] ; then
	if [ -d $ROOTDIR/boot/etc/. ] ; then 
	    ln -s boot/etc $ROOTDIR/etc
	else 
	    echo "Can't find 'etc' directory neither in '/' nor in '/boot'"
	    return 1
	fi
    fi
    [ -d $ROOTDIR/var/. ] || mkdir $ROOTDIR/var
    [ -d $ROOTDIR/var/run ] || mkdir $ROOTDIR/var/run
    [ -d $ROOTDIR/var/spool ] || mkdir $ROOTDIR/var/spool
    [ -d $ROOTDIR/var/cache ] || mkdir $ROOTDIR/var/cache
    if [ ! -d $ROOTDIR/var/log ] ; then
        mkdir $ROOTDIR/var/log
        chown root:log $ROOTDIR/var/log
        chmod 2750 $ROOTDIR/var/log
    fi
    [ -d $ROOTDIR/var/adm/. ] || ln -s log $ROOTDIR/var/adm

    if [ ! -d $ROOTDIR/var/tmp ] ; then mkdir $ROOTDIR/var/tmp ; chmod 1777 $ROOTDIR/var/tmp ; fi
    # /tmp should exist, either as a dir or a link.
    if [ ! -e $ROOTDIR/tmp ] ; then mkdir $ROOTDIR/tmp ; chmod 1777 $ROOTDIR/tmp ; fi

    return 0
}

# this function lists all hard drives found, but hides CDROMs
function list_disks {
    echo "${names[@]}"
    #for i in `tail +3 /proc/partitions | awk '{print $4}' | grep '\([a-zA-Z]$\)\|\(c[0-9]*d[0-9]*$\)'`; do
    #	 if ! echo $CDROMS | grep -qw $i; then
    #	 echo $i
    #	 fi
    #done
}

# mounts all the new file-systems, and creates the mount points when needed
function mount_new_fs {
    local -a mplist=($(sort -k2.1 /tmp/fsmnt 2>/dev/null|cut -f2 -d' ') )
    local fs mp type

    rm -f /tmp/fstab

    echo "/proc		/proc		proc	defaults			0 0" >> /tmp/fstab
    echo "#/dev		/dev		tmpfs	size=0,nr_inodes=4096,remount,nosuid	0 0" >> /tmp/fstab
    echo "/dev/pts	/dev/pts	devpts	defaults			0 0" >> /tmp/fstab
    echo "/dev/cdrom	/mnt/cdrom	iso9660	defaults,noauto,ro,users,exec	0 0" >> /tmp/fstab

    for mp in "${mplist[@]}"; do
	fs=$(grep " $mp\$" /tmp/fsmnt 2>/dev/null|cut -f1 -d' ')
	type=$(grep "^$fs " /tmp/fstype 2>/dev/null|cut -f2 -d' ')
	if [ "$mp" != "swap" ]; then
	    mkdir -p -m 0755 $ROOTDIR$mp 2>/dev/null
	    mount -t $type $fs $ROOTDIR$mp
	fi
	if [ "$mp" = "/" ]; then
	    echo "#$fs	$mp	$type	defaults,ro			1 1" >> /tmp/fstab
	    echo "/dev/root	$mp	$type	defaults,ro			1 1" >> /tmp/fstab
	    mkdir -p -m 0755 $ROOTDIR/dev $ROOTDIR/proc $ROOTDIR/etc
	    mount -t proc proc $ROOTDIR/proc  # may be needed for compressed files
	elif [ "$mp" = "/boot" ]; then
	    echo "$fs	$mp		$type	defaults,ro			1 2" >> /tmp/fstab
	elif [ "$mp" = "swap" ]; then
	    echo "$fs	$mp		$type	defaults			0 0" >> /tmp/fstab
	else
	    echo "$fs	$mp		$type	defaults			1 2" >> /tmp/fstab
	fi
    done
    echo "/var/empty	/var/empty	tmpfs	size=0,nr_inodes=1,ro,mode=0100,nosuid,nodev	0 0" >> /tmp/fstab
}

# unmounts all the new file-systems
function unmount_new_fs {
    local -a mplist=($(sort -rk 2.1 /proc/mounts 2>/dev/null | cut -f2 -d' ' | grep "^$ROOTDIR") )
    local fs mp type

    for mp in "${mplist[@]}"; do
	if [ "$mp" != "swap" ]; then
	    umount $mp >/dev/null 2>&1
	fi
    done
}


function setup_part {

    if [ -e /tmp/devmap -a -e /tmp/fstab ]; then
	echo "Filesystems are currently configured this way :"
	for i in `cut -f1 -d' ' /tmp/devmap`; do grep "^$i[ 	]" /tmp/fstab | awk '{print $1 " => " $2 }'; done
	echo "-- end of list --"
	yesno "Do you want to change something (y/n) ?" "n"
	[ "$REPLY" = "y" ] || return 0
	cp /tmp/fstab /tmp/fstab-
	cp /tmp/devmap /tmp/devmap-
    else
	touch /tmp/fstab- /tmp/devmap-
    fi

    # clean temporary files
    rm -rf /tmp/temp.$$ /tmp/fstab /tmp/devmap

    # unmount previously mounted file-systems
    for part in $(grep " $ROOTDIR" /proc/mounts|awk '{print $2}'|sort -r); do
	umount $part;
    done

    echo "/proc		/proc		proc	defaults			0 0" >> /tmp/fstab
    echo "#/dev		/dev		tmpfs	size=0,nr_inodes=4096,remount	0 0" >> /tmp/fstab
    echo "/dev/pts	/dev/pts	devpts	defaults			0 0" >> /tmp/fstab
    echo "/dev/cdrom	/mnt/cdrom	iso9660	defaults,noauto,ro,users	0 0" >> /tmp/fstab

    echo "/dev/$(readlink /dev/cdrom) /dev/cdrom" >> /tmp/devmap 
    (grep -v ' CDROM$' /tmp/mounts 2>/dev/null; echo "/dev/$(readlink /dev/cdrom) CDROM") >/tmp/mounts- && mv /tmp/mounts- /tmp/mounts

    # scan all disk
    # for disk in $(list_disks); do
    REPLY=${names[0]}
    while menu_harddisk $REPLY; do
	disk=${REPLY##/dev/}

   # look for all detected partitions
#   for spart in `sfdisk -l /dev/$disk 2>/dev/null | grep "^/" |tr '*' ' '| cut -f3- -d'/' | awk '{print $1 ":" $6 }'` ; do


	REPLY=
	while { disk_read_part /dev/$disk ; menu_partition /dev/$disk $REPLY; } do
	    [ -z "$REPLY" ] && break
	    if [ "$REPLY" = "CLEAR" ] ; then
		if menu_yesno "Warning !\n\nThis will erase the partition table for /dev/$disk.\nAll data will be lost.\n\nDo you still want to proceed ?" N; then
		    dd if=/dev/zero of=/dev/$disk bs=1024 count=1 > /dev/null 2>&1
		    (echo o ; echo w ) | fdisk /dev/$disk > /dev/null 2>&1
		fi
		REPLY=FDISK
		continue
	    elif [ "$REPLY" = "FDISK" ]; then
		fdisk /dev/$disk
		REPLY=
		continue
	    else
		echo "menu format/mount pour $REPLY"
	    fi





     # partition name
     part=`echo $spart|cut -f1 -d:`
     set -- `echo $spart | tr ':' ' '`
     set -- $* `fdisk -s /dev/$1` `sfdisk -l /dev/$disk 2>/dev/null | grep "/dev/$1 " | cut -c15-`

     # hide mounted partitions
     part=/dev/$part
     if grep -q "$part " /proc/mounts > /dev/null ; then continue ; fi

     # hide empty or extended partitions
     if [ $2 = 0 -o $2 = 5 ] ; then continue ; fi

     # partition size in Mega Bytes
     size=$[ $3 / 1024]
     # partition type in human readable form
     type=$2
     shift 8
     htype=$* 
     
     # redo while not a good value
     askagain=y
     unset mountpoint
     while [ "$askagain" = "y" ] ; do
       askagain=n
       echo 
       echo "Partition : $part ($htype, ${size} MB)"

       # non linux partition
       if [ $type != 82 -a $type != 83 -a $type != 8e -a $type != fd ] ; then 
         yesno "$part isn't a standard linux partition, would you like an entry in /etc/fstab (y/n)?" "n"
         if [ "$REPLY" = "n" ] ; then continue ; fi
	 fstype=noauto
       else
         fstype=auto
       fi
 
       # getting mount point
       if [ $type = 82 ] ; then
         mountpoint=swap
       else
         mountpoint=$(grep "^$part[ 	]" /tmp/fstab- | awk '{print $2 }')
       fi
       ask "  Choose a mount point (swap,/,/boot,/var,...) or [Enter] for none" "$mountpoint"
       # remove useless leading and trailing slashes
       mountpoint=$(echo $REPLY|sed 's@^\([/]*\)\(/.*\)$@\2@'|sed 's@^\(.*[^/]\)\([/]*\)$@\1@')
       if [ -z "$mountpoint" ] ; then break ; fi

       case "$mountpoint" in
         /)     echo "$part /dev/root" >> /tmp/devmap ;;
         /boot) echo "$part /dev/boot" >> /tmp/devmap ;;
         swap)  echo "$part /dev/swap" >> /tmp/devmap ;
		echo "$part	swap	swap	defaults	0 0" >> /tmp/fstab;;
         *)     echo "$part /dev/fs/$(echo ${mountpoint#/} |tr '/' '.')" >> /tmp/devmap ;;
       esac

       
	case "$mountpoint" in
	    swap)
		(grep -v "^$part " /tmp/mounts 2>/dev/null; echo "$part SWAP") >/tmp/mounts- && mv /tmp/mounts- /tmp/mounts;;
	    *)
		(grep -v "^$part " /tmp/mounts 2>/dev/null; echo "$part $mountpoint") >/tmp/mounts- && mv /tmp/mounts- /tmp/mounts;;
	esac


       formatcmd=''
       # format linux partitions
       if [ $type = 82 -o $type = 83 -o $type = 8e -o $type = fd ] ; then 
         # tell how to format
         echo "  0: -- DO NOT format this partition (default) --" ; ch=0
         if [ "$mountpoint" = "swap" ] ; then 
           ch1="mkswap $part" ; echo " >1: $ch1"
           ch2="mkswap -c $part" ; echo "  2: $ch2 (with check)"
	 elif [ "`echo $mountpoint|cut -c1`" = "/" ] ; then
           ch1="mke2fs -b 1024 -m 1 -s 1 $part"
           if [ "$size" -lt 64 ]; then
              echo " >1: $ch1 (small ext2)"
           else
              echo "  1: $ch1 (small ext2)"
           fi
           ch2="mke2fs -b 4096 -s 1 $part" ; echo "  2: $ch2 (large ext2)"
           ch3="mke2fs -b 4096 -s 1 -j $part"
           if [ "$size" -ge 64 ]; then
              echo " >3: $ch3 (ext3)"
           else
              echo "  3: $ch3 (ext3)"
           fi
           ch4="mkreiserfs -h r5 $part" ; echo "  4: $ch4 (reiserfs)"
         fi
         ask "  Select a format method or enter the complete command" "$ch"
         case $REPLY in
           0)     formatcmd='' ;;
           [1-9]) formatcmd=`eval echo '\$ch'$REPLY` ;;
           *)     formatcmd=$REPLY ;;
         esac
       fi
     done
     
     # execute format
     if [ "$formatcmd" ] ; then
       echo -n "Doing: '$formatcmd': "
       eval "echo y | $formatcmd" > /tmp/error.$$ 2>&1
       if [ "$?" = "0" ] ; then 
         echo "done."
       else 
         echo "failed."
         echo "--------------------------------------------------------"
         echo "$formatcmd said:"
         sed -e "s/^/>> /" /tmp/error.$$
         echo "----------- Filesystem will not be mounted -------------"
         mountpoint=""
       fi 
     fi
     if [ "`echo $mountpoint|cut -c1`" = "/" ] ; then
       echo "$mountpoint -t $fstype $part" >> /tmp/temp.$$
     fi
   done 
 done

 # now we will mount all the filesystems we have just created, and add them to fstab
 sort /tmp/temp.$$ | while read ; do
   set -- $REPLY
   mp=$1 ; shift
   if [ ! -d $ROOTDIR$mp ] ; then mkdir -p $ROOTDIR$mp ; echo "Creating directory $mp" ; fi
   if [ $2 != noauto ] ; then 
     echo -n "Mounting $mp ($3): "
     mount -n $* $ROOTDIR$mp > /dev/null 2>&1 
     if [ "$?" = "0" ] ; then echo "done." ; else
       echo "failed."
       echo "##failed## $3	$mp	$2	defaults	1 1" >> /tmp/fstab
     fi
   else 
     echo "#$3	$1      	auto		defaults	0 0" >> /tmp/fstab
   fi
 done
 mount | grep '^[ 	]*/' | grep "$ROOTDIR[/ 	]" | sed "s@$ROOTDIR[/]*@/@" | \
   awk '{ printf "%s\t%s\t%s\tdefaults%s\t1 %s\n",$1,$3,$5,($3=="/" || $3=="/boot")?",ro":"",($3=="/")?"1":"2" }' >> /tmp/fstab
 #grep '^/' /proc/swaps | awk '{ print $1 "\tswap       \tswap       \tdefault	0 0"}' >> /tmp/fstab

 mkdir -p -m 0755 $ROOTDIR/dev $ROOTDIR/proc $ROOTDIR/etc $ROOTDIR/mnt/cdrom
 mount -t proc proc $ROOTDIR/proc  # may be needed for compressed files

### sed -e "s,^#L.*cdrom\$,ln ` readlink /dev/cdrom` /dev/cdrom," < /.preinit > $ROOTDIR/.preinit

 rm -f /tmp/temp.$$
 return 0
}

function setup_keyboard {
 sed -n '/^service keyboard/,/^ *$/p' < /etc/config.rc
}

function setup_mouse {
 sed -n '/^service mouse/,/^ *$/p' < /etc/config.rc
}

function setup_network {
 echo "# hostname formilux"
 echo "# interface eth0"
 echo "#    ip address 10.101.20.4/16"
 echo "#    ip dhcp"
 echo "# service network"
}

# (re)build config.rc, startup.rc, fstab, devmap, lilo.conf
function setup_config {
  local MNT="$1"
  local MPWD=$PWD
  local TMP=/tmp/newconf

  if [ ! -w /tmp ] ; then
    echo "Directory /tmp not writable"; exit 1
  fi

  mkdir -p $TMP >/dev/null 2>&1

  if [ "$MNT" = "" ] ; then MNT="$ROOTDIR"; fi

# copy startup.rc and config.rc
  rm -f $TMP/config.rc $TMP/startup.rc
  if [ "$UPDATE_ONLY" != "y" -o ! -e $MNT/etc/config.rc ]; then
    echo           >> $TMP/config.rc
    echo "# service syslogd" >> $TMP/config.rc
    echo           >> $TMP/config.rc
    setup_network  >> $TMP/config.rc
    echo           >> $TMP/config.rc
    setup_keyboard >> $TMP/config.rc
    setup_mouse    >> $TMP/config.rc
    chmod 644 $TMP/config.rc
  fi

  if [ "$UPDATE_ONLY" != "y" -o ! -e $MNT/etc/startup.rc ]; then
    echo "#!/bin/sh" >> $TMP/startup.rc
    echo "echo -n \"Default configuration ... \" " >> $TMP/startup.rc
    echo "/sbin/init.d/sysprofiles /etc/config.rc" >> $TMP/startup.rc
    chmod 755 $TMP/startup.rc
  fi

# copy fstab
  cp /tmp/fstab $TMP/fstab

# copy devmap
  BOOTDEV=${BOOTDEV:-`echo $ROOTDEV | sed 's/[0-9]\+$//'`}
  ask "Choose device on which LILO will be installed " $BOOTDEV
  BOOTDEV=$REPLY
  grep -v '/dev/\(mbr\|cdrom\)$' /tmp/devmap > $TMP/devmap 2>/dev/null
  echo "$BOOTDEV /dev/mbr" >> $TMP/devmap
  echo "/dev/$(readlink /dev/cdrom) /dev/cdrom" >> $TMP/devmap 


# build a new lilo.conf 
  cd $MNT

  KERNVER=`ls boot/*/bzImage | tail -1 | cut -f2 -d/`
  KERNLBL=`echo $KERNVER | tr -d '.-'`
  cat > $TMP/lilo.conf <<EOF
serial = 0,9600n8
boot = $BOOTDEV
default = l$KERNLBL
EOF

  for bootimg in `ls boot/*/bzImage` ; do
    echo "image = /$bootimg" >> $TMP/lilo.conf
    echo "  label = l`echo $bootimg | cut -f2 -d/ | tr -d '.-'`" >> $TMP/lilo.conf
    echo "  append = \"root=$ROOTDEV\"" >> $TMP/lilo.conf
    echo "  read-only" >> $TMP/lilo.conf
  done

  if [ `grep "label =" $TMP/lilo.conf | wc -l` = 0 ]; then
    echo
    echo "WARNING!!! no kernel was found in $MNT/boot !!!"
    echo "You must install a kernel and edit $TMP/lilo.conf or your system will never boot."
    echo
    sleep 1
  fi

# copy /.preinit
  if [ -e $MNT/.preinit -a "$UPDATE_ONLY" = "y" ]; then
    cp $MNT/.preinit $TMP/.preinit
  else
    cp /.preinit $TMP/.preinit
  fi

  # 1st complicated part : merge old and new fstab.
  # Method:
  #  - mount points only in old fstab are kept as-is
  #  - mount points in both with same types only have their dev updated
  #  - mount points in both with diff types are fully updated
  #  - mount points only in new fstab are merged
  if [ "$UPDATE_ONLY" = "y" -a -e $MNT/etc/fstab ]; then
    rm -f $TMP/fstab
    while read; do 
      set -- $REPLY
      if ! grep -q "^[^ 	]\+[ 	]\+${2}[ 	]" /tmp/fstab; then
        # not found
	echo "$REPLY" >> $TMP/fstab
      elif ! grep -q "^[^ 	]\+[ 	]\+${2}[ 	]\+${3}[ 	]" /tmp/fstab; then
        # not found with the same type
        echo "##old##$REPLY" >> $TMP/fstab 
        grep "^[^ 	]\+[ 	]\+${2}[ 	]" /tmp/fstab >> $TMP/fstab
      else
        # found with the same type. We may have to update the device
        dev=`grep "^[^# 	]\+[ 	]\+${2}[ 	]" /tmp/fstab|head -1|awk '{print $1}'`
        if [ "$dev" -a "$dev" != "$1" ]; then
           echo "##old##$REPLY" >> $TMP/fstab 
           echo "$dev	$2	$3	$4	$5 $6" >> $TMP/fstab  # keep options
        else
           echo "$REPLY" >> $TMP/fstab  # was commented or the same
        fi
      fi 
    done < $MNT/etc/fstab

    # add new entries
    while read; do 
      set -- $REPLY
      if ! grep -q "^[^ 	]\+[ 	]\+${2}[ 	]" $TMP/fstab; then
	echo "$REPLY" >> $TMP/fstab
      fi 
    done < /tmp/fstab
  fi

  # try to update lilo.conf

  if [ -e $MNT/etc/lilo.conf -a "$UPDATE_ONLY" = "y" ]; then
    rm -f $TMP/lilo.conf
    if grep -q "^image.*$KERNVER" $MNT/etc/lilo.conf; then
      # the latest kernel is referenced. We can use this conf.
      (echo "boot = $BOOTDEV" ; grep -v "^boot[ 	]*=[ 	]*$BOOTDEV" $MNT/etc/lilo.conf | sed 's/^\(boot[ 	]*=\)/##old##\1/') > $TMP/lilo.conf
    else
      # the latest kernel is missing from lilo.conf.
      (echo "boot = $BOOTDEV" ; grep -v "^boot[ 	]*=[ 	]*$BOOTDEV" $MNT/etc/lilo.conf | sed 's/^\(boot[ 	]*=\)/##old##\1/') | sed -e 's:^\(image.*=[^/]*/boot/\)\([^/]*\)\(/.*\)$:\1'$KERNVER'\3:' > $TMP/lilo.conf
    fi
  fi
 
  # now, we may have to update .preinit to create aliased entries.
  # we remove all references to devices that have been updated

  grep -v "^[#]*\(ln\|L\).*[ 	]\+\($(echo `cut -f2 -d' ' $TMP/devmap`|sed 's@ @\\|@g')\)" $TMP/.preinit > $TMP/.preinit-
  grep -v ' /dev/fs/' $TMP/devmap | sed 's@^/dev/@ln @' >> $TMP/.preinit-
  if grep -q ' /dev/fs' $TMP/devmap; then
    if ! grep -q "^\(md\|M\)[ 	]\+/dev/fs" $TMP/.preinit-; then
       echo "md /dev/fs 755" >> $TMP/.preinit-
    fi
    grep ' /dev/fs/' $TMP/devmap | sed 's@^/dev@ln ..@' >> $TMP/.preinit-
  fi
  mv $TMP/.preinit- $TMP/.preinit ; chmod 711 $TMP/.preinit

  rm -f $TMP/passwd
  if [ "$UPDATE_ONLY" != "y" -o ! -e $MNT/etc/passwd ]; then
    sed -e 's@/home/admin@/root@' < /etc/passwd |grep -v '^\(squid:\|pdnsd:\|flx:\|install:\)' > $TMP/passwd
    chmod 644 $TMP/passwd
  fi

  # if /var is on its own filesystem, /tmp must be a true filesystem too.
  if grep -q ' \(/dev/fs/var\|/dev/fs/var\.tmp\)$' $TMP/devmap; then
    if ! grep -q "^[^ 	]\+[ 	]\+/tmp[ 	]" $TMP/fstab; then
      echo "/tmp		/tmp	tmpfs	defaults,nosuid,nodev	0 0" >> $TMP/fstab
    fi 
  fi 
       
  cd $MPWD
  return 0
}

function apply_config {
  local MNT=$1
  local TMP=/tmp/newconf

  [ -e $TMP/.preinit ]   && (rm -f $MNT/.preinit       ; cp -p $TMP/.preinit   $MNT)
  [ -e $TMP/passwd ]     && (rm -f $MNT/etc/passwd     ; cp -p $TMP/passwd     $MNT/etc)
  [ -e $TMP/lilo.conf ]  && (rm -f $MNT/etc/lilo.conf  ; cp -p $TMP/lilo.conf  $MNT/etc)
  [ -e $TMP/fstab ]      && (rm -f $MNT/etc/fstab      ; cp -p $TMP/fstab      $MNT/etc)
  [ -e $TMP/config.rc ]  && (rm -f $MNT/etc/config.rc  ; cp -p $TMP/config.rc  $MNT/etc)
  [ -e $TMP/startup.rc ] && (rm -f $MNT/etc/startup.rc ; cp -p $TMP/startup.rc $MNT/etc)

  # replace /tmp with a directory if needed
  if grep -q "^[^ 	]\+[ 	]\+/tmp[ 	]" $TMP/fstab; then
    if [ -L $MNT/tmp ]; then rm -f $MNT/tmp && mkdir -m 1777 $MNT/tmp >/dev/null 2>&1; fi
  fi 
  return 0
}

function do_lilo {
  if [ -e $ROOTDIR/dev -a -e $ROOTDIR/.preinit -a -e $ROOTDIR/etc/lilo.conf ]; then
    chroot $ROOTDIR /.preinit rebuild
    chroot $ROOTDIR /sbin/lilo || lilo -r $ROOTDIR
    umount $ROOTDIR/dev  # remove what .preinit has installed
  else
    echo "LILO has NOT been run because it needs /dev, /.preinit, and /etc/lilo.conf"
  fi
  return 0
}



# main

ROOTDIR=/var/mount
PKGDIR=/home/pkg
SHELLDIR=/

init

if [ $0 = "mkdisk" ] ; then setup_part && exit 0 ; exit 1 ; 
elif [ $0 = "mkconfig" ] ; then setup_config $1 && exit 0 ; exit 1 ; 
elif [ $0 = "doconfig" ] ; then apply_config $1 && exit 0 ; exit 1 ; 
fi

end=0
while [ $# -ge 1 -a "$end" -ne 1 ] ; do
  case $1 in
    --disk) setup_part;;
    --config) setup_config $2; shift;;
    --apply) apply_config $2; shift;;
    --) end=1;;
    *) end=1;; 
  esac
  if [ "$end" -eq 1 ] ; then break ; fi
  shift
done

action="PART"
while [ -n "$action" ] ; do
  
    ROOTDEV=$(mount | grep " on $ROOTDIR " | cut -f1 -d' ')
  
#  echo
#  echo "Possible actions are :"
#  echo "1: Run fdisk"
#  echo "2: Setup filesystems"
#  echo "3: Install packages"
#  echo "4: Build running config"
#  echo "5: Save built config for next reboot"
#  echo "6: Run lilo"
#  echo "7: Unmount all"
#  echo "s: Shell"
#  echo "q: Quit"
#
#  ask "Select an action (1..7/s/q)" "$action"

    menu_main $action

    [ -z "$REPLY" ] && break

    if [ "$REPLY" = "SHELL" ] ; then (cd $SHELLDIR; echo -n "Current directory : "; pwd; bash -i); REPLY=$action; continue; fi

    case $REPLY in
    PART) 
      # unmount previously mounted file-systems
      #for part in $(grep " $ROOTDIR" /proc/mounts|awk '{print $2}'|sort -r); do umount $part; done
      unmount_new_fs
      detect_disks
      REPLY=${names[0]}
      while menu_harddisk $REPLY; do
	disk=${REPLY##/dev/}

        #sfdisk -l /dev/$disk
        #yesno "Clear partition table for '/dev/$disk' (y/n)?" "n"
	REPLY=
	while { disk_read_part /dev/$disk ; menu_partition /dev/$disk $REPLY; } do
	    part=$REPLY
	    [ -z "$REPLY" ] && break
	    if [ "$REPLY" = "CLEAR" ] ; then
		if menu_yesno "Warning !\n\nThis will erase the partition table for /dev/$disk.\nAll data will be lost.\n\nDo you still want to proceed ?" N; then
		    dd if=/dev/zero of=/dev/$disk bs=1024 count=1 > /dev/null 2>&1
		    (echo o ; echo w ) | fdisk /dev/$disk > /dev/null 2>&1
		fi
		REPLY=FDISK
	    elif [ "$REPLY" = "FDISK" ]; then
		fdisk /dev/$disk
		REPLY=
	    else
		part=$REPLY
		REPLY=
		while menu_setupfs /dev/$part $REPLY; do
		    case "$REPLY" in
		    SHELL)
			(cd $SHELLDIR; echo -n "Current directory : "; pwd; bash -i)
			(grep -v "^/dev/$part " /tmp/fstype 2>/dev/null; echo "/dev/$part auto") >/tmp/fstype-
			mv /tmp/fstype- /tmp/fstype
			# goes automatically to default format
			REPLY=
			;;
		    MNT)
			menu_mount_point /dev/$part
			# goes automatically to default format
			REPLY=
			;;
		    SWAP)
			mkswap /dev/$part
			(grep -v "^/dev/$part " /tmp/fstype 2>/dev/null; echo "/dev/$part swap") >/tmp/fstype-
			mv /tmp/fstype- /tmp/fstype
			REPLY=EXIT
			;;
		    SWAPC)
			mkswap -c /dev/$part
			(grep -v "^/dev/$part " /tmp/fstype 2>/dev/null; echo "/dev/$part swap") >/tmp/fstype-
			mv /tmp/fstype- /tmp/fstype
			REPLY=EXIT
			;;
		    EXT2S)
			mke2fs -b 1024 -m 1 -s 1 /dev/$part
			(grep -v "^/dev/$part " /tmp/fstype 2>/dev/null; echo "/dev/$part ext2") >/tmp/fstype-
			mv /tmp/fstype- /tmp/fstype
			REPLY=EXIT
			;;
		    EXT2L)
			mke2fs -b 4096 -s 1 /dev/$part
			(grep -v "^/dev/$part " /tmp/fstype 2>/dev/null; echo "/dev/$part ext2") >/tmp/fstype-
			mv /tmp/fstype- /tmp/fstype
			REPLY=EXIT
			;;
		    EXT3)
			mke2fs -b 4096 -s 1 -j /dev/$part
			(grep -v "^/dev/$part " /tmp/fstype 2>/dev/null; echo "/dev/$part ext3") >/tmp/fstype-
			mv /tmp/fstype- /tmp/fstype
			REPLY=EXIT
			;;
		    REISER)
			mkreiserfs -h r5 /dev/$part
			(grep -v "^/dev/$part " /tmp/fstype 2>/dev/null; echo "/dev/$part reiserfs") >/tmp/fstype-
			mv /tmp/fstype- /tmp/fstype
			REPLY=EXIT
			;;
		    esac
		    # this is done to exit right after an mkfs
		    [ "$REPLY" = "EXIT" ] && break;
		done
		REPLY=
	    fi
	done
	# things might have changed !
	detect_disks
	REPLY=/dev/$disk
      done 
      # we now have to mount all these file systems
      mount_new_fs
      SHELLDIR=/
      action=SOURCE
      ;;
    SOURCE) 
	action=SOURCE
	while menu_select_source; do
	    case "$REPLY" in
		CDROM)
		    menu_select_cdrom && break;
		    ;;
		DISK)
		    menu_select_disk
		    ;;
		NFS)
		    menu_select_nfs
		    ;;
		DIR)
		    menu_select_dir
		    ;;
	    esac
	done
	PKGDIR=$(readlink /var/flx-pkg 2>/dev/null)
	[ -d "/var/flx-pkg/." ] && action=PKG
	;;
    PKG) 
	cd /
	if [ "$ROOTDEV" != "" ] ; then
	    #ask "Packages directory, or files pattern ($PKGDIR, $PKGDIR/*.lst, *.prf, *.tgz)"$'\n'"   " $PKGDIR ; PKGDIR="$REPLY"
	    #if [ -d "$PKGDIR" ]; then
	    #  list=`cd $PKGDIR && ls *.prf *.lst *.tgz 2>/dev/null`
	    #else
	    #  list=`basename "$PKGDIR"`
	    #  PKGDIR=`dirname "$PKGDIR"`
	    #  list=$(cd $PKGDIR && echo $list)
	    #fi
	    menu_pkg_dir
	    list=( ); idx=0
	    for pack in $(shopt -s nullglob ; cd $PKGDIR && echo *.{prf,tgz}); do
		list[idx++]=$pack
		list[idx++]=""
		if [ -z "${pack##[0-9][0-9][0-9]_*}" ]; then
		    # pre-selects every numbered package
		    list[idx++]="on"
		else
		    list[idx++]="off"
		fi
	    done

	    list=( $(dialog --title " Formilux Installation Utility " --no-shadow \
		--checklist "Packages Selection\n\n   Press <Space> to select/deselect a package.\n   Press <Up>/<Down> to select an item.\n   Press <Tab> to move between [OK] and [Cancel].\n   Press <Enter> to install your selection." 24 80 12 "${list[@]}" 2>&1) )
	
	    # dialog returns quoted words
	    eval list=( "${list[@]}" )
	    [ ${#list[@]} -gt 0 ] || break
	
	    for pack in "${list[@]}" ; do
		case "$pack" in
		    *tgz)
			[ -d "$ROOTDIR" ] || mkdir -p -m 0755 $ROOTDIR
			[ -d "$ROOTDIR/etc/formilux" ] || { mkdir -p -m 0750 $ROOTDIR/etc/formilux; chgrp adm $ROOTDIR/etc/formilux; }
			echo "### begin $pack ###" >> $ROOTDIR/etc/formilux/install.log
			tar zpvxf $PKGDIR/$pack -C $ROOTDIR >> $ROOTDIR/etc/formilux/install.log
			echo "### end $pack ###" >> $ROOTDIR/etc/formilux/install.log
			;;
		    *prf)
			[ -d "$ROOTDIR/etc/formilux" ] || { mkdir -p -m 0750 $ROOTDIR/etc/formilux; chgrp adm $ROOTDIR/etc/formilux; }
			echo "### begin $pack ###" >> $ROOTDIR/etc/formilux/install.log
			rm -f /tmp/${pack##*/}.log
			flxextract -R $ROOTDIR -p $PKGDIR -i $PKGDIR/$pack -l /tmp/${pack##*/}.log
			cat /tmp/${pack##*/}.log >> $ROOTDIR/etc/formilux/install.log
			echo "### end $pack ###" >> $ROOTDIR/etc/formilux/install.log
			;;
		esac
	    done 
	    check_directories || exit 1
	    SHELLDIR=/
	    action=CONFIG
	else
	    action=PART
	fi
	;;
    CONFIG) 
	check_directories || exit 1
	if [ "$UPDATE_ONLY" != "n" -a "$UPDATE_ONLY" != "y" ]; then
	echo "Existing files can be REPLACED or UPDATED."
	    yesno "Do you prefer to UPDATE existing files (y/n) ?" "y"
	    UPDATE_ONLY="$REPLY"
	fi
	setup_config $ROOTDIR 
	echo "done."
	echo "New files have been written to /tmp/newconf/"
	echo "You can check them now by starting a shell."
	SHELLDIR=/tmp/newconf
	(cd $SHELLDIR ; ls -lart)
	action=SAVE
	;;
    SAVE)
	echo "Saving config (.preinit, startup.rc, config.rc, fstab, lilo.conf, passwd)"
	apply_config $ROOTDIR 
	echo "Saving config ... done."
	echo "Updating dynamic files (/etc/formilux/sig.dat, /etc/ld.so.cache) ... "
	ldconfig -r $ROOTDIR > /dev/null 2>&1 
	
	for SYSTEMMAP in `echo $ROOTDIR/boot/System.map-*`; do
	    KERNVER=${SYSTEMMAP#$ROOTDIR/boot/System.map-}
	    chroot $ROOTDIR depmod -a -F /boot/System.map-$KERNVER $KERNVER
	done
	
	echo "Signing the filesystem... (this may take a while)"
	cd $ROOTDIR ; signfs -x `mount|grep -v ' type \(tmpfs\|ramfs\)'|grep "^/.* $ROOTDIR "| \
	    sed "s@^.*$ROOTDIR\([^ ]*\) .*@.\1@"` > /etc/formilux/sig.dat
	echo "Updating dynamic files ... done."
	SHELLDIR=/
	action=LILO
	;;
    LILO)
	do_lilo
	SHELLDIR=/
	action=UNMOUNT
	;;
    UNMOUNT)
	cd /
	unmount_new_fs
	umount -l /mnt/cdrom >/dev/null 2>&1
	SHELLDIR=/
	action=EXIT
	;;
    *) 
	;;
  esac
done