136 lines
4.2 KiB
Bash
Executable File
136 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (c) 2015, Cosmin Gorgovan <cosmin at linux-geek dot org>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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print_usage() {
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echo "Usage: build_rootfs.sh [OPTIONS]"
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echo "Valid options: "
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echo " --skip-deps-check don't check if dependencies are installed"
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echo " --help prints this message"
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}
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check_dependencies() {
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dpkg -s debian-archive-keyring debootstrap > /dev/null
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if [ $? -ne 0 ] ; then
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echo
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echo "Error: Some dependencies appear to be missing. Aborting."
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exit 1
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fi
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}
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parse_args() {
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for arg in "$@"; do
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case $arg in
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--skip-deps-check)
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dep_check=false
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;;
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--help)
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print_usage
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exit 0
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;;
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*)
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echo "Unrecognized option $arg"
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echo
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print_usage
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exit 1
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;;
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esac
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done
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}
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config_rootfs() {
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echo
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echo "Configuring the newly build rootfs..."
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echo "okreader" > ./rootfs/etc/hostname
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echo -e "127.0.0.1 localhost okreader\n" > ./rootfs/etc/hosts
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echo -e "nameserver 8.8.8.8\nnameserver 8.8.4.4\n" > ./rootfs/etc/resolv.conf
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# replace the framebuffer terminals with an uart terminal
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mv ./rootfs/etc/inittab ./rootfs/etc/inittab.default
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sed -r 's/^[0-9]+:[0-9]+:respawn/# &/' ./rootfs/etc/inittab.default > rootfs/etc/inittab
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echo -e "\nT0:23:respawn:/sbin/getty -L ttymxc0 115200 vt100\n" >> ./rootfs/etc/inittab
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mkdir ./rootfs/mnt/onboard
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echo -e "/dev/mmcblk0p3 /mnt/onboard vfat noatime 0 1\n" > ./rootfs/etc/fstab
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echo -e "tmpfs /tmp tmpfs defaults 0 0\n" >> ./rootfs/etc/fstab
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# Prevents documentation from being installed to persistent storage
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echo -e "tmpfs /usr/share/man tmpfs defaults 0 0\n" >> ./rootfs/etc/fstab
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echo -e "tmpfs /usr/share/info tmpfs defaults 0 0\n" >> ./rootfs/etc/fstab
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echo -e "tmpfs /usr/share/doc tmpfs defaults 0 0\n" >> ./rootfs/etc/fstab
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# Don't store logs (to save space & reduce flash wear)
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echo -e "tmpfs /var/log tmpfs defaults 0 0\n" >> ./rootfs/etc/fstab
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echo "Configuration done."
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}
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clean_up_rootfs() {
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echo "Cleaning up..."
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# SSH keys must be unique for each device. Run dpkg-reconfigure openssh-server on the device.
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rm ./rootfs/etc/ssh/ssh_host*key*
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# Remove cached packages and documentation to reduce the size of the FS
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rm ./rootfs/var/cache/apt/archives/*.deb
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rm -R ./rootfs/usr/share/man/*
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rm -R ./rootfs/usr/share/info/*
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rm -R ./rootfs/usr/share/doc/*
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rm -R ./rootfs/var/log/*
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echo "Cleanup done."
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}
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build_rootfs() {
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debootstrap --arch=armhf --variant=minbase \
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--include=net-tools,wireless-tools,wpasupplicant,kmod,udev,openssh-server,iputils-ping,ifupdown,vim-tiny,dhcpcd \
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wheezy ./rootfs http://http.debian.net/debian/
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if [ $? -ne 0 ] ; then
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echo
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echo "Error: Debootstrap seems to have failed. Aborting."
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exit 1
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fi
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config_rootfs
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clean_up_rootfs
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}
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dep_check=true
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parse_args $@
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if [[ $EUID -ne 0 ]]; then
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echo "Error: This script must be run as root. Aborting."
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exit 1
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fi
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if $dep_check ; then
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check_dependencies
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fi
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build_rootfs
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