#!/bin/sh -
#
# Copyright (c) 1992 The Regents of the University of California.
# All rights reserved.
#
# %sccs.include.redist.sh%
#
#	@(#)get	7.2 (Berkeley) %G%
#

# Shell script to build a mini-root file system in preparation for building
# a distribution tape.  The file system created here is image copied onto
# tape, then image copied onto disk as the "first" step in a cold boot of
# 4.3BSD systems.
#
DISTROOT=
#
if [ `pwd` = '/' ]
then
	echo You just '(almost)' destroyed the root
	exit
fi

# copy in kernel
cp $DISTROOT/sys/GENERIC.pmax/vmunix .

# create necessary directories
DIRLIST="bin dev etc a tmp stand sbin usr usr/mdec"
rm -rf $DIRLIST
mkdir $DIRLIST

ETC="disktab services"
for i in $ETC; do
	cp $DISTROOT/etc/$i etc/$i
done

SBIN="disklabel fsck ifconfig init mknod mount newfs restore umount"
USBIN="pwd_mkdb"
for i in $SBIN; do
	cp $DISTROOT/sbin/$i sbin/$i
done
for i in $USBIN; do
	cp $DISTROOT/usr/sbin/$i sbin/$i
done
ln sbin/restore sbin/rrestore

BIN="[ cat cp dd echo ed expr ls mkdir mv rcp rm sh stty sync"
UBIN="awk mt"
for i in $BIN; do
	cp $DISTROOT/bin/$i bin/$i
done
for i in $UBIN; do
	cp $DISTROOT/usr/bin/$i bin/$i
done
ln bin/[ bin/test

MDEC="rzboot bootrz"
for i in $MDEC; do
	cp $DISTROOT/usr/mdec/$i usr/mdec/$i
done

DOT=".profile"
for i in $DOT; do
	cp $DISTROOT/$i $i
done

# initialize /dev
cp $DISTROOT/dev/MAKEDEV dev/MAKEDEV
chmod +x dev/MAKEDEV
cp /dev/null dev/MAKEDEV.local
(cd dev; ./MAKEDEV std dc0 scc0 rz0 rz1 rz2 rz3 rz4 tz0 tz1 \
	pm0 cfb0 xcfb0 mfb0 pty0)

# initialize /etc/passwd
cat >etc/passwd <<EOF
root::0:10::/:/bin/sh
daemon:*:1:1::/:
EOF

# initialize /etc/group
cat >etc/group <<EOF
system:*:0:
daemon:*:1:
uucp:*:2:
kmem:*:3:
bin:*:4:
news:*:8:
staff:*:10:
operator:*:28:
EOF

# initialize /etc/fstab
cat >etc/fstab <<EOF
/dev/rz0a	/	ufs	xx	1 1
/dev/rz0g	/usr	ufs	xx	1 2
EOF

# create xtr script
cat >xtr <<'EOF'
#!/bin/sh -e
: ${disk?'Usage: disk=xx0 tape=yy [type=zz] xtr'}
: ${tape?'Usage: disk=xx0 tape=yy [type=zz] xtr'}
echo 'Build root file system'
disklabel -W ${disk}c ${type}
disklabel -w -r ${disk}c ${type}
newfs ${disk}a ${type}
sync
echo 'Check the file system'
fsck /dev/r${disk}a
mount /dev/${disk}a /a
cd /a
echo 'Rewind tape'
mt -f /dev/${tape}0 rew
echo 'Restore the dump image of the root'
restore rsf 2 /dev/${tape}0
cd /
sync
umount /a
sync
fsck /dev/r${disk}a
echo 'Root filesystem extracted'
EOF

# make xtr script executable
chmod +x xtr

sync