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/bin/partman is in ubiquity 18.04.14.

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#!/bin/sh

. /lib/partman/lib/base.sh
. /lib/partman/lib/commit.sh

abort () {
	if [ -f /var/run/parted_server.pid ]; then
		stop_parted_server
	fi
	exit $1
}

# Implemented here instead of init.d because anna displays a progress bar
# which conflicts with the init.d progress bar
load_extra () {
	local auto memreq_lvm memreq_crypto

	# These packages currently are of no use on GNU/kFreeBSD or GNU/Hurd,
	# but do waste a lot of space, so skip installing them here
	case "$(udpkg --print-os)" in
	kfreebsd|hurd)
		return 0
		;;
	esac

	if [ -f /var/lib/partman/loaded-extra ]; then
		return 0
	fi
	>/var/lib/partman/loaded-extra

	# Rough memory requirements in kB; could be made arch dependent
	memreq_lvm=7500
	memreq_crypto=11000	# 1MB more than limit in partman-crypto

	auto=""
	if [ -f /lib/partman/lib/auto-shared.sh ]; then
		auto=1
	fi

	# partman-lvm is loaded first, then partman-crypto
	if [ -f /lib/partman/lib/lvm-base.sh ]; then
		:
	elif [ $(memfree) -ge $memreq_lvm ]; then
		if [ "$auto" ]; then
			anna-install partman-auto-lvm
		else
			anna-install partman-lvm
		fi
	else
		logger -t partman "Insufficient free memory to load LVM support"
	fi
	if [ -f /lib/partman/lib/crypto-base.sh ]; then
		:
	elif [ $(memfree) -ge $memreq_crypto ]; then
		if [ "$auto" ]; then
			anna-install partman-auto-crypto
		else
			anna-install partman-crypto
		fi
	else
		logger -t partman "Insufficient free memory to load crypto support"
	fi
}

###########################################################
# Compute some constants in order to make things faster.
###########################################################

# Detect if Debconf can escape strings
# non-empty means we can escape
can_escape=''
if type debconf-escape >/dev/null 2>&1; then
	db_capb backup align
	for cap in $RET; do
		case $cap in
			escape)	can_escape=yes ;;
		esac
	done
fi
export can_escape

# The decimal separator (dot or comma)
#db_metaget partman/text/deci description
#deci="$RET"
# The comma has special meaning for debconf.  Let's force dot until we
# start using escaped strings.
deci='.'
export deci

# work around bug #243373
if [ "$TERM" = xterm ] || [ "$TERM" = bterm ]; then
	debconf_select_lead="$NBSP"
else
	debconf_select_lead="> "
fi
export debconf_select_lead

###########################################################


# Commented due to #240145
#if [ -e /var/lib/partman ]; then
#	rm -rf /var/lib/partman
#fi

mkdir -p /var/lib/partman

# Load additional components when sufficient memory is available
load_extra

# Make sure all modules are available
# Should really be done whenever anna installs a kernel package
depmod -a

# We need to set the capabilities after anna-install
db_capb backup align

while true; do
	initcount=$(ls /lib/partman/init.d/* | wc -l)
	db_progress START 0 $initcount partman/progress/init/title

	for s in /lib/partman/init.d/*; do
		if [ -x $s ]; then
			#logger -t partman "Running init.d/$s"

			base=$(basename $s | sed 's/[0-9]*//')
			# Not every init script has, or needs, its own progress
			# template. Add them to slow init scripts only.
			if ! db_progress INFO partman/progress/init/$base; then
				db_progress INFO partman/progress/init/fallback
			fi
			if ! $s; then
				db_progress STOP
				abort 10
			fi
		fi
		db_progress STEP 1
	done
	db_progress STOP

	while true; do
		for s in /lib/partman/display.d/*; do
			if [ -x $s ]; then
				#logger -t partman "Running display.d/$s"
				$s || {
					exitcode=$?
					if [ $exitcode -eq 255 ]; then
						abort 10 # back up to main menu
					elif [ $exitcode -ge 128 ] && [ $exitcode -lt 192 ]; then
						abort $exitcode # killed by signal
					elif [ $exitcode -ge 100 ]; then
						break # successful partitioning
					else
						continue 2
					fi
				}
			fi
		done

		for s in /lib/partman/check.d/*; do
			if [ -x $s ]; then
				#logger -t partman "Running check.d/$s"
				if ! $s; then
					continue 2
				fi
			fi
		done
		if confirm_changes partman; then
			break
		fi
	done

	if [ "$PARTMAN_NO_COMMIT" ]; then
		exit 0
	fi

	for s in /lib/partman/commit.d/*; do
		if [ -x $s ]; then
			#logger -t partman "Running commit.d/$s"
			$s || continue 2
		fi
	done

	for s in /lib/partman/finish.d/*; do
		if [ -x $s ]; then
			#logger -t partman "Running finish.d/$s"
			$s || {
				exitcode=$?
				if [ "$exitcode" = 1 ]; then
					continue 2
				else
					abort $exitcode
				fi
			}
		fi
	done

	break
done

exit 0