#!/bin/bash # # Copyright 2011 by Bdale Garbee # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # based on work by , who released his script under # the following license terms: # ---------------------------------------------------------------------------- # "THE BEER-WARE LICENSE" (Revision 42): # As long as you retain this notice you can do whatever you want with # this stuff. If we meet some day, and you think this stuff is worth it, # you can buy me a beer in return. # ---------------------------------------------------------------------------- # mk_dreamplug_rootfs # # Runs multistrap and readies the resulting root filesystem to silently # complete package configuration on the first boot-up. # where to build images, etc basedir=`pwd`/build target=$basedir/dreamplug tmpdir=$basedir/tmp pkgcache=$tmpdir/aptcache mkdir -p $target mkdir -p $tmpdir mkdir -p $pkgcache hostname='freedombox' rootpassword='freedom' kernelimage=http://www.newit.co.uk/kernels/Dreamplug/Dreamplug-prerelease/uImage kernelmodules=http://www.newit.co.uk/kernels/Dreamplug/Dreamplug-prerelease/Modules.tar.gz if [ ! -f $tmpdir/uImage ] then wget -c $kernelimage --output-document="$tmpdir/uImage" fi if [ ! -f $tmpdir/linux.tar.gz ] then wget -c $kernelmodules --output-document="$tmpdir/linux.tar.gz" fi rm -rf $target/* mkdir -p $target/var/cache/apt/ && mount -o bind $pkgcache $target/var/cache/apt/ echo "Multistrapping..." multistrap -f fbx-armel.conf --no-auth -d $target umount $target/var/cache/apt/ mkdir $target/var/cache/apt/archives echo "Unpacking kernel modules..." mkdir -p $target/lib/modules/ tar -C $target/lib/ -zxvf $tmpdir/linux.tar.gz | tail echo "copy uImage to target filesystem" mkdir -p $target/boot cp build/tmp/uImage $target/boot/uImage echo "copy copy2dream.sh script to target filesystem" cp bin/copy2dream.sh $target/boot/copy2dream.sh # Until udev is configured and run for the first time, dev nodes won't be created, but we need some basic ones for spawning a console (console) and creating RSA keys for SSH (urandom). echo "Creating basic device nodes" mknod $target/dev/console c 5 1 mknod $target/dev/random c 1 8 mknod $target/dev/urandom c 1 9 mknod $target/dev/null c 1 3 mknod $target/dev/ptmx c 5 2 # Basic fstab & mtab.. echo "Setting up basic fstab & mtab" echo " rootfs / rootfs relatime,rw 0 0 proc /proc proc none 0 0 sys /sys sysfs none 0 0 none /dev/pts devpts defaults 0 0 tmpfs /tmp tmpfs rw,nosuid,nodev 0 0 " > $target/etc/fstab touch $target/etc/mtab # Set up hostname echo "Setting up hostname, /etc/network/interfaces, nameservers, persistent-net-generator rules" echo $hostname > $target/etc/hostname # Create /etc/network/interfaces echo "# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 iface eth0 inet dhcp allow-hotplug eth1 iface eth1 inet dhcp " > $target/etc/network/interfaces # Setup nameserver (use OpenDNS by default) echo "nameserver 208.67.222.222 nameserver 208.67.220.220" > $target/etc/resolv.conf # Touch the net generator udev so that eth0 won't be reassigned in case the user # changes the MAC address - this may happen if you change the rootfs between plugs. touch $target/etc/udev/rules.d/75-persistent-net-generator.rules # generate configuration script echo "Create script to configure packages in qemu-user-static" echo " echo \"Preconfiguring dash - else dash and bash will be left in a broken state\" /var/lib/dpkg/info/dash.preinst install echo \"Configuring all packages\" export DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true export LC_ALL=C LANGUAGE=C LANG=C dpkg --configure -a # Establish an initial root password echo \"Set root password to \"$rootpassword echo root:$rootpassword | /usr/sbin/chpasswd # By default, spawn a console on the serial port echo \"Adding a getty on the serial port\" echo \"T0:12345:respawn:/sbin/getty -L ttyS0 115200 vt100\" >> /etc/inittab echo \"Tweaks to reduce flash writes as per http://www.plugcomputer.org/plugwiki/index.php/Reduce_Flash_Writes\" echo \" # Reduce writes to flash drives vm.laptop_mode=5 vm.swappiness=0 vm.dirty_writeback_centisecs=1500 vm.dirty_expire_centisecs=1500 \" >> /etc/sysctl.conf echo \"Deleting this very same script\" rm -f /install.sh echo \"Syncing filesystem just in case something didn't get written\" sync echo \"End configuration progress by exiting from the chroot\" exit " > $target/install.sh chmod 755 $target/install.sh echo "Use qemu-user-static to perform first-boot configuration now" mkdir -p $target/usr/bin cp /usr/bin/qemu-arm-static $target/usr/bin chroot $target /install.sh rm $target/usr/bin/qemu-arm-static echo "Syncing..." sync echo "Finished. You may now copy the rootfs to the plug."