arch domU install script

arch.install

#! /bin/bash
# new arch-domU install
#
#  Copyright (c) 2010, Franz Bettag <franz@bett.ag>
#  All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * 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.
#     * All advertising materials mentioning features or use of this software
#       must display the following acknowledgement:
#       This product includes software developed by the Bettag Systems
#       and its contributors.
#
#  THIS SOFTWARE IS PROVIDED BY FRANZ BETTAG ''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 FRANZ BETTAG 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.
#
#



DESTHOSTNAME="archy"
NETIF="172.16.1.5 netmask 255.255.255.0"
NETGW="172.16.1.1"

DESTDIR=/mnt/cdrom


alias pacman="pacman --config /etc/pacman.conf"

# Get path to directory containing this script
SCRIPTDIR="`dirname \`readlink -f $0\``"

echo "Changing current directory to $SCRIPTDIR"
cd $SCRIPTDIR

echo
echo "newarch will do an automated Archlinux installation to the directory"
echo "            $DESTDIR"
echo

if [ "$(whoami)" != 'root' ]; then
       echo "You must run this as 'root'"
       exit 1
fi

if [ -z "`echo $DESTDIR | grep '^/'`" ]; then
       DESTDIR=`pwd`/$DESTDIR
fi

if [ ! -d $DESTDIR ]; then
       mkdir -p $DESTDIR
else
       rm -rf $DESTDIR/*
       if [ $? -ne 0 ]; then
               echo "ERROR: couldn't remove $DESTDIR"
               exit 1
       fi
fi

mkdir -p $DESTDIR/var/lib/pacman/

cp /etc/resolv.conf $DESTDIR/etc/resolv.conf

PACMAN="pacman --config /etc/pacman.conf --noconfirm"
mkdir -p $DESTDIR/etc/pacman.d

echo
echo "************** Synchronising package dbs **************"
echo
$PACMAN -r $DESTDIR -Sy

echo
echo "************** Installing package set **************"
echo
PKGLIST="linux-api-headers tzdata glibc zlib binutils gcc ncurses readline iana-etc db cracklib pam shadow attr acl gmp libcap coreutils filesystem util-linux-ng bzip2 pcre glib2 module-init-tools udev device-mapper libgpg-error libgcrypt popt cryptsetup dcron diffutils e2fsprogs file findutils gawk gettext grep sed grub gzip net-tools kbd sysvinit initscripts iputils linux-firmware which less licenses logrotate gdbm perl texinfo groff man-db man-pages nano xz openssl expat libarchive libfetch pacman pacman-mirrorlist pciutils sysfsutils libnl libpcap procps psmisc eventlog tcp_wrappers syslog-ng tar vi vim curl wget openssh git tcpdump netcat screen sudo unzip zip base-devel abs"

echo "Installing following packages:"
echo $PKGLIST
$PACMAN -r $DESTDIR -S $PKGLIST
if [ $? -gt 0 ]; then
	echo
	echo "Package installation from $PKGLIST FAILED."
	echo
	exit 1
fi


# This installs packer into the domU, nifty tool
wget https://github.com/bruenig/packer/raw/HEAD/packer --no-check-certificate -O $DESTDIR/usr/bin/packer
chmod +x $DESTDIR/usr/bin/packer


PACMAN="chroot $DESTDIR /usr/bin/packer -S --noconfirm"

cd $DESTDIR/dev 
rm console ; mknod -m 600 console c 5 1 
rm null ; mknod -m 666 null c 1 3 
rm zero ; mknod -m 666 zero c 1 5

echo
echo "************** Set root password **************"
echo
chroot $DESTDIR passwd

echo
echo "************** Synchronising package dbs **************"
echo
# change the source to fit yours
cp -r /etc/pacman.d/mirrorlist $DESTDIR/etc/pacman.d/mirrorlist
chroot $DESTDIR pacman -S -y

echo
echo "************** Configuring system **************"
echo
# this removes hardwareclock (dom0 is doing that) and sets everything else accordingly (+ sshd boot)
sed -i -e 's;^HARDWARECLOCK=.*$;HARDWARECLOCK=;g' \
	-e 's;^TIMEZONE=.*$;TIMEZONE="Europe/Berlin";g' \
	-e 's;^KEYMAP=.*;KEYMAP="de";g' \
	-e 's;^MOD_AUTOLOAD="yes";MOD_AUTOLOAD="no";g' \
	-e "s;^HOSTNAME=.*;HOSTNAME=\"$DESTHOSTNAME\";g" \
	-e "s;^eth0=.*;eth0=\"eth0 $NETIF\";g" \
	-e "s;^gateway=.*;gateway=\"default gw $NETGW\";g" \
	-e "s;^ROUTES=.*;ROUTES=(gateway);g" \
	-e "s;^DAEMONS=(syslog-ng network netfs crond);DAEMONS=(network syslog-ng crond sshd);g" \
	$DESTDIR/etc/rc.conf

# set the wanted charset
sed -i -e "s/^#en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/g" $DESTDIR/etc/locale.gen
chroot $DESTDIR locale-gen

# this removes errors during startup which try to set charset (dom0 is doing that)
sed -i -e 's;^.*/usr/bin/kbd_mode;#/usr/bin/kbd_mode;' \
	-e 's;^.*\\033%%G.*$;echo -n;' \
	$DESTDIR/etc/rc.sysinit


cat > $DESTDIR/etc/fstab <<EOF
devpts		/dev/pts	devpts	defaults	0	0
shm		/dev/shm	tmpfs	nodev,nosuid	0	0
/dev/sda1	/		ext3	noatime		0	1
/dev/sda2	none		swap	noatime		0	0
#/dev/sda3	/data		auto	noatime		0	0
EOF

# i don't like those folders.
rm -rf $DESTDIR/srv $DESTDIR/media

echo
echo "************** Extracting base config **************"
echo
# you should create a folder somewhere, mkdir -p {etc,home/youruser} and put files in there
# which you want extracted in the new systems's root.
chroot $DESTDIR /usr/bin/curl http://your.server/baseconfig.tbz2 > $DESTDIR/base.tbz2
chroot $DESTDIR tar -jxvpf base.tbz2
chroot $DESTDIR rm base.tbz2


# Removes the clear-screen from issue.net (i want to see startup in a domU)
echo 'Arch Linux \r  (\n) (\l)' > $DESTDIR/etc/issue
echo >> $DESTDIR/etc/issue

echo
echo "+++ All done! +++"
echo