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after error mount, try to free image

#!/bin/sh
#
# Boot startup script for ELWIX RootFS ...
#
# $Id: rc,v 1.1.1.1.6.3 2011/11/02 12:07:37 misho Exp $

stty status '^T'

trap : 2
trap : 3
trap : 18

HOME=/root
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/pkg/bin:/usr/pkg/sbin:/usr/local/bin:/usr/local/sbin
TERM=xterm
BLOCKSIZE=1k
EDITOR=vi
PAGER=less
export HOME PATH TERM BLOCKSIZE EDITOR PAGER

FIT2CF="/dev/ufs/fit2cf"
CFDIR="/elwix/cf"

umask 022

failed_sysvol()
{
	echo " RootFS: Failed $1 ELWIX $2 ... Go to emergency shell !!!"

	exit 127
}

boot_elwix()
{
	echo " RootFS: Load ELWIX system firmware"
	mdconfig -a -t vnode -u 1 -f /elwix/elwix-firmware.sys && mount -r /dev/md1.uzip /usr
	if test $? -ne 0; then
		mdconfig -d -u 1 >/dev/null 2>&1
		mdconfig -a -t vnode -u 1 -f /elwix/altroot/elwix-firmware.sys && mount -r /dev/md1.uzip /usr
		if test $? -ne 0; then
			mdconfig -d -u 1 >/dev/null 2>&1
			failed_sysvol "load system and default image" elwix-firmware.sys
		fi
	fi
	sleep 2
}

#
## main()
#

echo "ELWIX>>> Firmware RootFS boot stage ..."
echo " RootFS: Mount ELWIX system volume"
fsck -q -y 1>/dev/null 2>&1 && mount -a || fsck -y 1>/dev/null 2>&1 && mount -a || \
	fsck -f -y 1>/dev/null 2>&1 && mount -a || failed_sysvol mount "system volume"

if test -c $FIT2CF -a -d $CFDIR; then
	echo " RootFS: Mount ELWIX flash volume"
	fsck -y -tufs $FIT2CF 1>/dev/null 2>&1 && mount -o ro $FIT2CF $CFDIR || \
		fsck -f -y -tufs $FIT2CF 1>/dev/null 2>&1 && mount -o ro $FIT2CF $CFDIR || \
		failed_sysvol mount "flash volume"
fi

boot_elwix

/etc/rc.init