get

早期freebsd实现

#!/bin/sh -
#
# Copyright (c) 1990 The Regents of the University of California.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#	This product includes software developed by the University of
#	California, Berkeley and its contributors.
# 4. Neither the name of the University nor the names of its contributors
#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#	@(#)get	1.8 (Berkeley) 5/21/91
#

# 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=/nbsd
#
if [ `pwd` = '/' ]
then
	echo You just '(almost)' destroyed the root
	exit
fi

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

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

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

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

BIN="[ cat cp dd echo ed expr ls mkdir mv rcp rm sh stty sync"
UBIN="awk make 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/stty bin/STTY

STAND="copy vdformat"
for i in $STAND; do
	cp $DISTROOT/stand/$i stand/$i
done

DOT=".profile boot fppoc fppwcs poc poc1 poc2 wcs"
#DOT=".profile boot"
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 hd0 hd1 dk0 dk1; ./MAKEDEV cy0; mv rmt12 cy0; rm *mt*)

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

# initialize /etc/group
cat >etc/group <<EOF
wheel:*:0:
staff:*:10:
EOF

# initialize /etc/fstab
cat >etc/fstab <<EOF
/dev/dk0a /a		ufs	xx 1 1
/dev/hd0a /a		ufs	xx 1 1
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'
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 3 /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