alxinstall-ng/bin/alxinstall-ng.sh.in

#!/bin/sh
# $Id$

# ignore environment!
LC_ALL=C

MLIBDIR="/usr/lib/alxinstall-ng"

# images: (get ${CDIMAGENAME})
source /mnt/cdrom/system/images.conf

# includes
source ${MLIBDIR}/functions/generic.sh
source ${MLIBDIR}/functions/hwdetection.sh

### System/Config Version
VERSION="@@VERSION@@"
TITLE="alxinstall-ng - ${VERSION}"

# locations
CDPATH="/mnt/cdrom"
INSTALL_ROOT="/mnt/magellan"

# default system settings
# standard kernel opts
DEFAULT_KERNELOPTS="quiet video=1024x768"

# grub options
DEFAULT_GRUBLEGACYOPTS=""
DEFAULT_GRUB2OPTS=""
DEFAULT_GRUB2GFXPAYLOAD="1024x768x16,1024x768"

# default specialdevices
DEFAULT_FORMFACTOR="desktop"

# target filesystem
DEFAULT_FORMAT_FILESYSTEM="ext4"

# initialize global variables so they are exportable
INSTALL_METHOD=""
KERNELOPTS=""
GRUBLEGACYOPTS=""
GRUB2OPTS=""
GRUB2GFXPAYLOAD=""
FORMFACTOR=""
FORMAT_FILESYSTEM=""
FDISKPARTIONBELOW256MB=0
SPECIALDEVICE=""
FLASHDISK=0
### linecount of system.tar.gz -1 !
CURRENTLINE=0
#TOTALLINES=11072 # -> now in images.conf

#################################################
#		  DIALOG BOXES			#
#################################################

die()
{
	ERROR=$1
	RETVAL=$?
	dialog_install_failure
	trap_exit
	exit 1
}

dialog_warning()
{
	dialog \
	--backtitle "${TITLE}" \
	--colors \
	--defaultno \
	--yesno "\Z1 !!! Achtung !!! \Zn\n\n\
	Diese Festplatte wird unwiederruflich geloescht werden.\n\n\
		Soll ich wirklich fortfahren ?" 10 70
	RES=$?
	if [[ ${RES} -eq 1 ]]
	then
		clear
		echo "Der Vorgang wurde abgebrochen."
		exit 1
	fi
}

dialog_setup_hdd_info()
{
	case "${INSTALL_METHOD}" in
		auto)
			dialog_setup_hdd_info_auto
			dialog_setup_hdd_create_partitions
			;;
		normal) dialog_setup_hdd_info_normal ;;
		single) dialog_setup_hdd_info_single ;;
		flash) dialog_setup_hdd_info_flash ;;
	esac
}

dialog_setup_hdd_info_normal()
{
	local SHDD="$(echo ${HDD} | sed 's/\/dev\///')"

	dialog \
	--colors \
	--title "[ Festplatten Partitionierung ]" \
	--backtitle "${TITLE}" \
	--ok-label "Weiter" \
	--msgbox "\nBitte legen Sie 3 Partitionen an.\n\n\
		[ \Z3${SHDD}1\Zn ] Typ: \Z3Linux\Zn mit ca. 50MB\n\
		[ \Z3${SHDD}2\Zn ] Typ: \Z3Linux Swap\Zn mit ca. 256MB\n\
		[ \Z3${SHDD}3\Zn ] Typ: \Z3Linux \Zn mit dem Rest (min. 256MB)\n\n\
		Bitte ${SHDD}1 als \Z3bootable\Zn markieren." 12 81
}

dialog_setup_hdd_info_single()
{
	local SHDD="$(echo $HDD | sed 's/\/dev\///')"

	dialog \
	--colors \
	--title "[ Festplatten Partitionierung ]" \
	--backtitle "${TITLE}" \
	--ok-label "Weiter" \
	--msgbox "\nBitte legen Sie 1 Partition an.\n\n\
		[ \Z3${SHDD}1\Zn ] Typ: \Z3Linux\Zn mit dem gesamten Speicher\n\
		Bitte ${SHDD}1 als \Z3bootable\Zn markieren." 12 81
}

dialog_setup_hdd_info_flash()
{
	local SHDD="$(echo ${HDD} | sed 's/\/dev\///')"

	dialog \
	--colors \
	--title "[ Festplatten Partitionierung ]" \
	--backtitle "${TITLE}" \
	--ok-label "Weiter" \
	--msgbox "\nBitte legen Sie 2 Partitionen an.\n\n\
		[ \Z3${SHDD}1\Zn ] Typ: \Z3Linux\Zn mit ca. 50MB\n\
		[ \Z3${SHDD}2\Zn ] Typ: \Z3Linux \Zn mit dem Rest (min. 256MB)\n\n\
		Bitte ${SHDD}1 als \Z3bootable\Zn markieren." 12 81
}

dialog_setup_hdd_info_auto()
{
	local SHDD="$(echo $HDD | sed 's/\/dev\///')"

	dialog \
	--colors \
	--title "[ Festplatten Partitionierung ]" \
	--backtitle "${TITLE}" \
	--ok-label "Weiter" \
	--msgbox "\nAchtung!\n\
		Alle Daten werden von der Disk [ \Z3${HDD}\Zn ] gelöscht!" 12 81
}

dialog_setup_system_menu()
{
	local i

	i=$(dialog \
	--backtitle "${TITLE}" \
	--title "[ Festplatten Partitionierung ]" \
	--cancel-label "Abbrechen" \
	--ok-label "Weiter" \
	--stdout \
	--colors \
	--menu "\nWaehlen Sie die Installations-Methode" 14 70 5 \
	"1" "Automatisches Setup (Empfohlen)" \
	"" "" \
	"" "\Z1Experten Modi:\Zn" \
	"2" "Normale IDE-Disk (Manuell)" \
	"3" "Normale IDE Disk (Single)" \
	"4" "Flash SDHC/NAND oder USBStick (Manuell)")
	RES=$?
	[[ ${RES} -eq 1 ]] && return 1
	if [[ ${RES} -eq 0 ]]
	then
		case "${i}" in
			"1") run_install auto ;;
			"2") run_install normal ;;
			"3") run_install single ;;
			"3") run_install flash ;;
			"") dialog_setup_system_menu;;
		esac
	fi
}

dialog_hardware_detection()
{
	local i
	local hwtmp

	if [ -x $(type -P mktemp) ]
	then
		hwtmp="$(mktemp)"
	else
		hwtmp="/tmp/hwtmp.sh"
	fi

	run_hardware_detection_disks

	echo "dialog \\"  > ${hwtmp}
	echo "--backtitle \"${TITLE}\" \\" >> ${hwtmp}
	echo "--ok-label \"Weiter\" \\" >> ${hwtmp}
	echo "--stdout \\" >> ${hwtmp}
	echo "--colors \\" >> ${hwtmp}
	echo "--msgbox \"Gefundene Hardware:\n\n \\" >> ${hwtmp}
	echo "	Festplatten:\n \\" >> ${hwtmp}

	if [[ ! -z ${ALL_DISKS} ]]
	then
		for i in ${ALL_DISKS}
		do
			echo "		\\Z3${i}\\Zn\n \\" >> ${hwtmp}
		done
	fi

	if [[ ! -z ${ALL_CDROMS} ]]
	then
		echo "	\n \\" >> ${hwtmp}
		echo "	CDROM Laufwerke:\n \\" >> ${hwtmp}
		for i in ${ALL_CDROMS}
		do
			echo "		\\Z3${i}\\Zn\n \\" >> ${hwtmp}
		done
	fi

	# other devices
	run_hardware_detection
	case "${SPECIALDEVICE}" in
		zotac*) echo "	\n \\Z2Zotac Device erkannt.\\Zn \\" >> ${hwtmp} ;;
		rangee) echo "	\n \\Z2Rangee Device erkannt.\\Zn \\" >> ${hwtmp} ;;
		maxdata) echo "	\n \\Z2Maxdata Device erkannt.\\Zn \\" >> ${hwtmp} ;;
		i845) echo "	\n \\Z2Intel i845 Device erkannt.\\Zn \\" >> ${hwtmp} ;;
		*) echo "	\n \\ZnStandard Device erkannt.\\Zn \\" >> ${hwtmp} ;;
	esac
	if [[ ${FORMFACTOR} = laptop ]]
	then
		echo "	\n \\ZnFormfactor Laptop, Powersave Modus 'ondemand' wird aktiviert.\\Zn \\" >> ${hwtmp}
	fi
	if [[ ${FLASHDISK} = 1 ]]
	then
		echo "	\n \\ZnFlash Speicher erkannt, F2FS wird als Dateisystem benutzt.\\Zn \\" >> ${hwtmp}
	fi

	echo "	\" 14 70" >> ${hwtmp}
	chmod a+x ${hwtmp}
	${hwtmp}

	# remove tmp file
	if [[ -f ${hwtmp} ]]
	then
		rm ${hwtmp}
	fi
}

dialog_setup_hdd_partitions()
{
	local i

	if [[ -z ${ALL_DISKS} ]]
	then
		dialog \
		--backtitle "${TITLE}" \
		--ok-label "Beenden" \
		--msgbox "Kein geeignetes Laufwerk gefunden.\nDie Installation ist fehlgeschlagen." 6 70
		exit 1
	else

		echo "dialog \\" > /tmp/hddtmp.sh
		echo "--backtitle \"${TITLE}\" \\" >> /tmp/hddtmp.sh
		echo "--ok-label \"Weiter\" \\" >> /tmp/hddtmp.sh
		echo "--cancel-label \"Beenden\" \\" >> /tmp/hddtmp.sh
		echo "--stdout \\" >> /tmp/hddtmp.sh
		echo "--menu \"Installations Laufwerk auswaehlen:\" 10 70 3 \\" >> /tmp/hddtmp.sh

		for i in ${ALL_DISKS}
		do
			echo "\"${i}\" \"\" \\" >> /tmp/hddtmp.sh
		done
		echo -e "\n" >> /tmp/hddtmp.sh

		chmod a+x /tmp/hddtmp.sh
		HDD="$(/tmp/hddtmp.sh)"
		RES=$?
		[[ ${RES} -eq 1 ]] && return 1
		if [[ ${RES} -eq 0 ]]
		then
			dialog_setup_hdd_info
			setup_hdd_partitions
		fi
	fi
}

dialog_setup_hdd_create_partitions()
{
	dialog \
	--backtitle "${TITLE}" \
	--infobox "Erstelle Disk Partitionen ..." 3 70
}

dialog_setup_hdd_format()
{
	dialog \
	--backtitle "${TITLE}" \
	--infobox "Erstelle Datei-Systeme ..." 3 70
}

dialog_install_settings()
{
	dialog \
	--backtitle "${TITLE}" \
	--infobox "Speichere System-Einstellungen ..." 3 70
}

dialog_install_system_image()
{
	dialog \
	--backtitle "${TITLE}" \
	--gauge "Kopiere System-Image ..." 6 80
}

dialog_install_meter()
{
	while [[ ${CURRENTLINE} != ${TOTALLINES} ]]
	do
		CURRENTLINE=$(grep -c . /tmp/install.log)
		PERCENT=$(( ${CURRENTLINE} * 100 / ${TOTALLINES}))
		echo ${PERCENT}
		sleep 1
	done
	rm -f /tmp/install.log
	return 0
}

dialog_install_bootsector()
{
	dialog \
	--backtitle "${TITLE}" \
	--infobox "Schreibe den Bootsektor ..." 3 70
}

dialog_install_successful()
{
	dialog \
	--backtitle "${TITLE}" \
	--colors \
	--msgbox "Die Installation war \Z2erfolgreich\Zn." 5 81
}

dialog_install_failure()
{
	dialog \
	--backtitle "${TITLE}" \
	--colors \
	--msgbox "Die Installation ist \Z1Fehlgeschlagen\Zn.\n\n\
		Fehler bei ${ERROR}, RetVal: ${RETVAL} \
	" 10 81
}

dialog_main()
{
	METHOD=0

	while [[ ${METHOD} -le 2 ]]
	do
		METHOD=$(dialog \
		--backtitle "${TITLE}" \
		--no-cancel \
		--ok-label "Weiter" \
		--stdout \
		--menu "Konfiguration" 14 70 5 \
		"1" "AutoSta_LX installieren" \
		"2" "Uebersicht gefundener Laufwerke" \
		"3" "Beenden und neustarten" \
		"4" "Beenden und eine Shell starten")
		RES=$?
		[[ ${RES} -eq 1 ]] && exit 1
		if [[ ${RES} -eq 0 ]]
		then
			case ${METHOD} in
				"1") dialog_setup_system_menu ;;
				"2") dialog_hardware_detection ;;
				"3") install_do_reboot ;;
				"4") /bin/bash --login -i ;;
			esac
		fi
	done
}

#################################################
#		Install Commands		#
#################################################
run_hardware_detection()
{
	local hwinfo
	hwinfo="$(hwinfo --bios --storage --pci --gfxcard --sys)"

	# check for special devices/clients:
	# if zotac a zotac and the disk is a removeable device, then add rootdelay to kernelcmd
	local removable=0
	if [[ ! -z $(echo "${hwinfo}" | grep -i zotac) ]]
	then
		for i in /sys/block/[hs]d*/removable
		do
			if [[ $(< ${i}) = 1 ]]
			then
				removable=1
				# we assume that all removable disks are flash disks
				export FLASHDISK=1
			fi
		done

		# only add this for grub legacy, grub2 detect these settings on its own
		export GRUBLEGACYOPTS="rootdelay=8"
		# there are two zotac types in the wild, nvidia based gfx and intel
		if [[ ! -z $(echo "${hwinfo}" | grep -i nouveau) ]]
		then
			export SPECIALDEVICE="zotac_nvidia"
		else
			export SPECIALDEVICE="zotac_intel"
		fi
	fi

	# check for special devices/clients:
	# if a rangee and disk ist smaller then 256mb move partion one block further ahead
	if [[ ! -z $(echo "${hwinfo}" | grep -i CLE266) ]]
	then
		# for a rangee always define partion startblock +1 
		export FDISKPARTIONBELOW256MB="1"
		export SPECIALDEVICE="rangee"
		export GRUBLEGACYOPTS=""
	fi

	# check for special devices/clients:
	# check for maxdata / i810/ i815 Chipsets and disable KMS and use i810fb frambuffer
	if [[ ! -z $(echo "${hwinfo}" | grep -i i810) ]] || [[ ! -z $(echo "${hwinfo}" | grep -i i815) ]]
	then
		export SPECIALDEVICE="maxdata"
		export GRUBLEGACYOPTS=""
	fi

	# check for i845 Chipsets and disable KMS and use 915 drm driver
	if [[ ! -z $(echo "${hwinfo}" | grep -i i845) ]]
	then
		export SPECIALDEVICE="i845"
		# unset default video=1024x768 opt or the drm driver breaks
		export KERNELOPTS="quiet"
		export GRUBLEGACYOPTS=""
		# enable full kms support
		export GRUB2GFXPAYLOAD="keep"
	fi

	# check for radeon gfxcards
	if [[ ! -z $(echo "${hwinfo}" | grep -i radeon) ]]
	then
		# enable full kms support
		export GRUB2GFXPAYLOAD="keep"
	fi

	# check for special devices/clients:
	# check for laptops and activate cpufreq scaling
	if [[ $(echo "${hwinfo}" | grep 'Formfactor:' | sed 's:.*Formfactor\:\ \"\(.*\)\":\1:') = laptop ]]
	then
		export FORMFACTOR="laptop"
		export KERNELOPTS="${KERNELOPTS} cpufreq.governor=ondemand"
	fi
}

run_hardware_detection_disks()
{
	local bootdev

	# all disks but exclude ramdisks
	export ALL_DISKS=$(get_hwinfo disk | sed '/\/dev\/ram[0-9].*/d')
	# remove the boot device from ALL_DISKS if it was an usbstick
	if [[ $(grep '[[:space:]]/mnt/cdrom[[:space:]]' /proc/mounts | cut -d' ' -f3) != iso9660 ]]
	then
		bootdev="$(grep '[[:space:]]/mnt/cdrom[[:space:]]' /proc/mounts | cut -d' ' -f1 | sed 's:[0-9]::g')"
		export ALL_DISKS=$(echo "${ALL_DISKS}" | grep -v "${bootdev}")
	fi
	export ALL_CDROMS="$(get_hwinfo cdrom)"
}

hdd_size_below_256mb()
{
	local hdd="$1"
	local size
	local retval
	[[ -z ${hdd} ]] && die "Error: get_hdd_size() no \$hdd given!"

	size=$(fdisk -l ${hdd} | grep "Disk.*${hdd}" | sed 's:.*,\ \(.*\)\ byte.*:\1:')
	if [[ ${size} -le 257000000 ]]
	then
		retval="0"
	else
		retval="1"
	fi

	return "${retval}"
}

setup_hdd_partitions()
{
	case "${INSTALL_METHOD}" in
		normal)
			BOOTHDD="${HDD}1"
			SWAPHDD="${HDD}2"
			ROOTHDD="${HDD}3"
			;;

		single|auto)
			BOOTHDD=""
			SWAPHDD=""
			ROOTHDD="${HDD}1"
			;;

		flash)
			BOOTHDD="${HDD}1"
			SWAPHDD=""
			ROOTHDD="${HDD}2"
			;;
	esac

	if [[ ${INSTALL_METHOD} = auto ]]
	then
		# run this only if FDISKPARTITIONBELOW256MB is not already 1
		if [[ ${FDISKPARTIONBELOW256MB} != 1 ]]
		then
			if hdd_size_below_256mb ${HDD}
			then
				FDISKPARTIONBELOW256MB=1
			else
				FDISKPARTIONBELOW256MB=0
			fi
		fi

		## delete disk
		dd if=/dev/zero of=${HDD} count=1 &> /dev/null || die

		if [[ ${FDISKPARTIONBELOW256MB} = 1 ]]
		then
			## setup one bootable partition
			#1. n= new disk
			#2. p= primary disk
			#3. 1= first partition
			#4. 2= default sector start // small disk needs more space for grub2 mbr sector
			#5. ''= defaul sector end
			#6. a= bootable flag
			#7. 1= boot flag for partition 1
			#8. w= write/quit
			fdisk ${HDD} &> /dev/null << EOF
n
p
1
2

a
1
w
EOF
		else
			## setup one bootable partition
			#1. n= new disk
			#2. p= primary disk
			#3. 1= first partition
			#4. ''= default sector start
			#5. ''= defaul sector end
			#6. a= bootable flag
			#7. 1= boot flag for partition 1
			#8. w= write/quit
			fdisk ${HDD} &> /dev/null << EOF
n
p
1


a
1
w
EOF
		fi
	else
		## hdds partitionieren manuell
		cfdisk ${HDD} || die
	fi
}

setup_hdd_format()
{
	if [[ -n ${SWAPHDD} ]]
	then
		mkswap ${SWAPHDD} || die
	fi
	if [[ -n ${BOOTHDD} ]]
	then
		# f2fs is not grub/grub2 compatible
		if [[ ${FORMAT_FILESYSTEM} = f2fs ]]
		then
			mkfs.ext2 -q ${BOOTHDD} || die
		else
			mkfs.${FORMAT_FILESYSTEM} -q ${BOOTHDD} || die
		fi
	fi
	if [[ -n ${ROOTHDD} ]]
	then
		mkfs.${FORMAT_FILESYSTEM} -q ${ROOTHDD} || die
	fi
}

install_mount_rootfs()
{
	local opts

	if [[ -n ${SWAPHDD} ]]
	then
		swapon ${SWAPHDD} || die
	fi
	if [[ -n ${ROOTHDD} ]]
	then
		# be safe here, append file system type to mount
		# just in case the f2fs module was not autoloaded
		[[ ${FORMAT_FILESYSTEM} = f2fs ]] && opts="-t fs2fs"
		mount ${opts} ${ROOTHDD} ${INSTALL_ROOT} || die
	fi
	if [[ -n ${BOOTHDD} ]]
	then
		install -d ${INSTALL_ROOT}/boot || die
		mount ${BOOTHDD} ${INSTALL_ROOT}/boot || die
	fi

	cd ${INSTALL_ROOT} || die
}

install_system_image()
{
	tar xvjpf ${CDPATH}/system/${CDIMAGENAME} -C ${INSTALL_ROOT}
}

install_bootsector_chroot()
{
	local my_roothdd
	local grubconf=${INSTALL_ROOT}/boot/grub/grub.conf
	local grub2conf=/boot/grub/grub.cfg
	local CONFIG

	# check for grub2
	if [[ -f ${INSTALL_ROOT}/sbin/grub-mkconfig ]]
	then
		# needed by grub-mkconfig on the first run
		if [[ ! -f ${INSTALL_ROOT}/boot/grub/video.lst ]]
		then
			install -m0644 ${INSTALL_ROOT}/lib/grub/*/video.lst ${INSTALL_ROOT}/boot/grub/video.lst || die
		fi

		# set kernelopts
		if [[ -f ${INSTALL_ROOT}/etc/conf.d/grub ]]
		then
			sed -i "s:^\(export GRUB_CMDLINE_LINUX_DEFAULT=\).*:\1\"${KERNELOPTS}\":" ${INSTALL_ROOT}/etc/conf.d/grub || die
			sed -i "s:^\(export GRUB_GFXPAYLOAD_LINUX=\).*:\1\"${GRUB2GFXPAYLOAD}\":" ${INSTALL_ROOT}/etc/conf.d/grub || die
		else
			CONFIG=${INSTALL_ROOT}/etc/conf.d/grub
			clearconfig
			addconfig "export GRUB_CMDLINE_LINUX_DEFAULT=\"${KERNELOPTS}\""
			addconfig "export GRUB_GFXPAYLOAD_LINUX=\"${GRUB2GFXPAYLOAD}\""
		fi
		CONFIG=${INSTALL_ROOT}/.installrc
		clearconfig
		addconfig 'grub-mkdevicemap'
		addconfig "LC_ALL=C grub-mkconfig -o ${grub2conf}  &> /dev/null"
		addconfig "grub-install --no-floppy ${HDD} &> /dev/null"
		addconfig "exit 0"

	# grub-legacy
	else
		### grubconf schreiben
		source ${INSTALL_ROOT}/boot/kernelversion

		#for alx only
		if [ -e ${INSTALL_ROOT}/etc/alx_version ]
		then
			OLD_ALXVER="${ALXVER}"
			source ${INSTALL_ROOT}/etc/alx_version
			KRNVER="ALX-${ALXVER}"
			ALXVER="${OLD_ALXVER}"
		fi

		[[ -z ${KRNVER} ]] && KRNVER="AutoSta_LX"
		[[ -z ${KRNINITRD} ]] && KRNINITRD="initrd"
		[[ -z ${KRNIMG} ]] && KRNIMG="vmlinuz"

		# uuid support
		if is_uuid_supported
		then
			my_roothdd="UUID=$(get_uuid ${ROOTHDD})"
		else
			my_roothdd="${ROOTHDD}"
		fi

		CONFIG="${grubconf}"
		clearconfig
		addconfig "default 0"
		addconfig "timeout 3"
		# using current root password
		addconfig "password --md5 $(cat ${INSTALL_ROOT}/etc/shadow | grep root | cut -d: -f2)"
		addconfig
		addconfig "# normal boot"
		addconfig "title ${KRNVER}"
		addconfig "root (hd0,0)"
		addconfig "kernel /boot/${KRNIMG} root=${my_roothdd} ${KERNELOPTS} ${GRUBLEGACYOPTS}"
		if is_initrd_supported
		then
			addconfig "initrd /boot/${KRNINITRD}"
		fi
		addconfig
		addconfig "# admin boot"
		addconfig "title ${KRNVER} - Re-run hardware-detection"
		addconfig "lock"
		addconfig "root (hd0,0)"
		addconfig "kernel /boot/${KRNIMG} root=${my_roothdd} ${KERNELOPTS} ${GRUBLEGACYOPTS} hardware-auto-detection"
		if is_initrd_supported
		then
			addconfig "initrd /boot/${KRNINITRD}"
		fi
		addconfig
		addconfig "title ${KRNVER} - Reset *all* local settings"
		addconfig "lock"
		addconfig "root (hd0,0)"
		addconfig "kernel /boot/${KRNIMG} root=${my_roothdd} ${KERNELOPTS} ${GRUBLEGACYOPTS} alx-reset-settings"
		if is_initrd_supported
		then
			addconfig "initrd /boot/${KRNINITRD}"
		fi

		# write bootsector chrooted (lfs/magellan)
		CONFIG=${INSTALL_ROOT}/.installrc
		clearconfig
		addconfig '/usr/sbin/grub --no-floppy --batch << "EOF" 1> /dev/null 2> /dev/null'
		addconfig 'root (hd0,0)'
		addconfig 'setup (hd0)'
		addconfig 'quit'
		addconfig 'EOF'
		addconfig 'exit 0'
	fi

	## enter chroot
	enter_chroot_installrc
}

is_initrd_supported()
{
	# only generate initrds if the cmd exists
	[[ -x ${INSTALL_ROOT}/sbin/mkinitrd ]] && return 0
	return 1
}

install_initrd_chroot()
{
	local CONFIG

	# only generate initrds if the cmd exists
	is_initrd_supported || return 0

	FSMODS="${FORMAT_FILESYSTEM}"
	DISKMODS="sd_mod"
	OLDPATAMODS="amd74xx piix sis5513 via82cxxx"
	PATAMODS="ata_piix pata_amd pata_mpiix pata_oldpiix pata_sis pata_via"
	SATAMODS="sata_via sata_sis sata_nv"
	DRMMODS="i915 mga nouveau r128 radeon savage sis tdfx ttm via"
	OTHERMODS=""
	case ${SPECIALDEVICE} in
		zotac_intel|i845) FBMODS=""; DRMMODS="i915" ;;
		zotac_nvidia) FBMODS=""; DRMMODS="nouveau" ;;
		rangee) FBMODS="" ;; ## fallback to vesafb, viafb does not run on all CLE266 boards
		# not working with kms enabled drivers -> segfaults
		#maxdata) FBMODS="i810fb" ;; ## check for maxdata / i810/ i815 Chipsets and disable KMS and use i810fb frambuffer
		maxdata) FBMODS="" ;;
		*) FBMODS="uvesafb" ;;
	esac

	# add a filesystems recoqnized by the bootloader if the current ${FORMAT_FILESYSTEM} is not supported
	case "${FORMAT_FILESYSTEM}" in
		f2fs) FSMODS+=" ext2" ;;
	esac

	if [[ ${FORMFACTOR} = laptop ]]
	then
		OTHERMODS="acpi-cpufreq cpufreq_ondemand cpufreq_conservative cpufreq_powersave"
	fi

	# install an appropriate uvesafb.conf
	CONFIG=${INSTALL_ROOT}/etc/modprobe.d/uvesafb.conf
	clearconfig
	addconfig "options uvesafb mode_option=1024x768-32@60 scroll=ywrap"

	# install an appropriate viafb.conf
	CONFIG=${INSTALL_ROOT}/etc/modprobe.d/viafb.conf
	clearconfig
	addconfig "options viafb viafb_mode=1024x768 viafb_refresh=60"

	# install an appropriate i810fb.conf
	CONFIG=${INSTALL_ROOT}/etc/modprobe.d/i810fb.conf
	clearconfig
	addconfig "options i810fb xres=1024 yres=768 bpp=16 mtrr=1 hsync1=30 hsync2=62 vsync1=30 vsync2=60"

	CONFIG=${INSTALL_ROOT}/.installrc
	clearconfig
	addconfig 'echo "MODULES=\"${FSMODS} ${DISKMODS} ${OLDATAMODS} ${PATAMODS} ${SATAMODS} ${DRMMODS} ${FBMODS} ${OTHERMODS}\"" > /etc/conf.d/mkinitrd'
	addconfig 'mkinitrd -f /boot/$(readlink /boot/initrd) $(readlink /boot/vmlinuz | sed "s:kernel-::g") > /dev/null'
	addconfig 'exit 0'
	## enter chroot
	enter_chroot_installrc
}

is_uuid_supported()
{
	# f2fs needs special treatments as the old busybox does not support this fs
	# use the blkid from util-linux instead of busybox
	if [[ ${FORMAT_FILESYSTEM} = f2fs ]]
	then
		if [[ -x $(type -P blkid) ]]
		then
				return 0
		fi
	else
		if [[ -x $(type -P busybox.mkinitrd) ]]
		then
			# only detect uuids if supported
			if [[ ! -z $(busybox.mkinitrd | grep blkid) ]]
			then
				return 0
			fi
		fi
	fi

	return 1
}

get_uuid()
{
	local UUID
	local SEC_TYPE
	local TYPE
	local blkidcmd

	local dev="$1"
	[[ -z ${dev} ]] && die "no dev given"

	# check if given device is already an UUID
	if [[ ${dev/UUID=/}x != ${dev}x ]]
	then
		eval "${dev}"
	else
		# f2fs needs special treatments as the old busybox does not support this fs
		# use the blkid from util-linux instead of busybox
		if [[ ${FORMAT_FILESYSTEM} = f2fs ]]
		then
			blkidcmd="blkid"
		else
			blkidcmd="busybox.mkinitrd blkid"
		fi
		eval $(${blkidcmd} ${dev} | grep "${dev}:" | sed 's/.*:\ //')
	fi
	echo "${UUID}"
}

install_system_settings()
{
	local CONFIG
	local fstype

	# write fstab
	CONFIG=${INSTALL_ROOT}/etc/fstab
	clearconfig

	if [[ -n ${BOOTHDD} ]]
	then
		if [[ ${FORMAT_FILESYSTEM} = f2fs ]]
		then
			# grub/grub2 does not support boot from f2fs, use ext2 instead
			fstype="ext2"
		else
			fstype="${FORMAT_FILESYSTEM}"
		fi
		if is_uuid_supported
		then
			addconfig -e "UUID=$(get_uuid ${BOOTHDD})\t/boot\t${fstype}\tnoatime,noauto\t1 1"
		else
			addconfig -e "${BOOTHDD}\t/boot\t${fstype}\tnoatime,noauto\t1 1"
		fi
	fi

	if [[ -n ${ROOTHDD} ]]
	then
		if is_uuid_supported
		then
			addconfig -e "UUID=$(get_uuid ${ROOTHDD})\t/\t${FORMAT_FILESYSTEM}\tnoatime\t0 0"
		else
			addconfig -e "${ROOTHDD}\t/\t${FORMAT_FILESYSTEM}\tnoatime\t0 0"
		fi
	fi

	# not needed busybox loads all with swapon -a, even if not mentioned in fstab
	#addconfig -e "UUID='$(get_uuid ${SWAPHDD})'\tswap\tswap\tpri=1\t0 0"
	addconfig -e "proc\t/proc\tproc\tdefaults\t0 0"
	addconfig -e "shm\t/dev/shm\ttmpfs\tdefaults\t0 0"

	# install network config skeleton
	install -m0644 ${INSTALL_ROOT}/etc/alxconfig-ng/skel/net/net.eth0 ${INSTALL_ROOT}/etc/conf.d/ || die

	# intel framebufer quirk
	if [[ -e /proc/fb ]]
	then
		if [[ ! -z $(grep 'inteldrmfb' /proc/fb) ]]
		then
			fbdev=$(grep 'inteldrmfb' /proc/fb | sed 's:\([0-9]\).*:\1:')
			if [[ ${fbdev} != 0 ]]
			then
				sed -i "s:^\(SPLASH_DEV=\).*:\1\"/dev/fb${fbdev}\":" ${INSTALL_ROOT}/etc/splash/splash.conf || die
			fi
		fi
	fi
}

install_umount_rootfs()
{
	cd /
	if [[ -n ${BOOTHDD} ]]
	then
		umount ${INSTALL_ROOT}/boot || die
	fi
	if [[ -n ${ROOTHDD} ]]
	then
		umount ${INSTALL_ROOT} || die
	fi
	if [[ -n ${SWAPHDD} ]]
	then
		swapoff ${SWAPHDD} || die
	fi
}

install_do_reboot()
{
	reboot
}

#################################################
#	     Install Main Scripts		#
#################################################

run_install()
{
	local method="$1"

	# setup install environment
	export KERNELOPTS="${DEFAULT_KERNELOPTS}"
	export GRUBLEGACYOPTS="${GRUBLEGACYOPTS}"
	export GRUB2OPTS="${GRUB2OPTS}"
	export GRUB2GFXPAYLOAD="${DEFAULT_GRUB2GFXPAYLOAD}"
	export FORMFACTOR="${DEFAULT_FORMFACTOR}"
	export FORMAT_FILESYSTEM="${DEFAULT_FORMAT_FILESYSTEM}"

	case "${method}" in
		auto)
			export INSTALL_METHOD="${method}"
			;;
		normal)
			export INSTALL_METHOD="${method}"
			;;
		single)
			export INSTALL_METHOD="${method}"
			;;
		flash)
			export FORMAT_FILESYSTEM="f2fs"
			export INSTALL_METHOD="${method}"
			;;
		*)
			echo "Unknown install method '${method}', aborting."
			exit 1
			;;
	esac

	dialog_hardware_detection

	dialog_setup_hdd_partitions
	dialog_setup_hdd_format
	setup_hdd_format > /dev/null
	install_mount_rootfs
	(install_system_image > /tmp/install.log) 2> /tmp/install_errors.log | dialog_install_meter | dialog_install_system_image

	dialog_install_settings
	sleep 1
	install_system_settings
	install_initrd_chroot

	dialog_install_bootsector
	install_bootsector_chroot

	install_umount_rootfs
	dialog_install_successful
}

# set some proper traps
trap "trap_exit" SIGINT SIGQUIT

dialog_main

exit 0