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stable elwix rootfs
adds more fibs
remove fstab in rootfs
fix rootfs boot with rescue

#!/bin/sh
#
# Boot startup script for ELWIX RootFS ...
#
# $Id: rc,v 1.7.2.7 2018/07/06 00:23:20 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

ETCDEV="md1"
ETCSIZE="8m"

VARDEV="md2"
VARSIZE="16m"

FRMDEV="md3"
FRMSIZE="48m"
FRMFILE="elwix-firmware.sys"

FRMDEV2="md4"
FRMSIZE2="24m"
FRMFILE2="elwix-firmware2.sys"

FRMPATH="/elwix"
FRM2PATH="/elwix/pkg"
FIT2CF="/dev/ufs/fit2cf"
CFDIR="/elwix/cf"

ELWIX2="/dev/ufs/elwix2"
ELWIX="/dev/ufs/elwix"

umask 022

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

	exit 127
}

boot_elwix()
{
	echo " RootFS: Loading ELWIX system firmware"

	mdmfs -s $FRMSIZE -S -n -m0 -oasync $FRMDEV /usr
	if [ "$?" != "0" ]; then
		failed_sysvol "to mount firmware image " $FRMFILE
	fi
	cd /usr
	pax -r -z -pe -f $FRMPATH/$FRMFILE
	if [ "$?" != "0" ]; then
		failed_sysvol "to load firmware image " $FRMFILE
	fi
	cd -
	mount -ur /usr
}

boot_elwix2()
{
	echo " RootFS: Loading ELWIX secondary firmware"

	mdmfs -s $FRMSIZE2 -S -n -m0 -oasync $FRMDEV2 $FRM2PATH
	if [ "$?" != "0" ]; then
		failed_sysvol "to mount firmware image " $FRMFILE2
	fi
	cd $FRM2PATH
	pax -r -z -pe -f $FRMPATH/$FRMFILE2
	if [ "$?" != "0" ]; then
		failed_sysvol "to load firmware image " $FRMFILE2
	fi
	cd -
	mount -ur $FRM2PATH
}

mount_usr()
{
	echo " RootFS: Mounting ELWIX system image"

	mount -t nullfs -r $FRMPATH/usr /usr
	if [ "$?" != "0" ]; then
		failed_sysvol "to mount system image " $FRMFILE
	fi
}

#
## main()
#

echo "ELWIX>>> Firmware RootFS boot stage ..."

mount -ttmpfs tmpfs /tmp
mdmfs -s $VARSIZE -S -n $VARDEV /var

if test -c $ELWIX2; then
	BOOTSLICE=`kenv currdev`
	if test "${BOOTSLICE#disk0}" != "a:"; then
		ELWIX=$ELWIX2
	fi
fi

if ! mount -o ro $ELWIX $FRMPATH 1>/dev/null 2>&1; then
	umount $FRMPATH 1>/dev/null 2>&1
	fsck -y $ELWIX 1>/dev/null 2>&1
	if ! mount -o ro $ELWIX $FRMPATH 1>/dev/null 2>&1; then
		umount -f $FRMPATH 1>/dev/null 2>&1
		fsck -f -y $ELWIX 1>/dev/null 2>&1
		if ! mount -o ro $ELWIX $FRMPATH; then
			failed_sysvol mount "storage volume"
		fi
	fi
fi

if test -c "$FIT2CF" -a -d "$CFDIR"; then
	echo " RootFS: Mount ELWIX flash volume"
	if ! mount -o ro $FIT2CF $CFDIR; then
		umount $CFDIR
		fsck -y -tufs $FIT2CF 1>/dev/null 2>&1
		if ! mount -o ro $FIT2CF $CFDIR; then
			echo "Error:: mount of $FIT2CF to $CFDIR failed!"
		fi
	fi
fi

if [ -r $FRMPATH/$FRMFILE ]; then
	boot_elwix
else
	if [ -d $FRMPATH/usr ]; then
		mount_usr
	else
		echo " RootFS: Skip loading ELWIX system firmware ..."
	fi
fi

if [ -r $FRMPATH/$FRMFILE2 ]; then
	boot_elwix2
fi

cd /elwix
mdmfs -s $ETCSIZE -S -n -m0 -oasync $ETCDEV /etc
pax -rw -pe etc /

exec /etc/rc.init