From: hackbard <hackbard@hackdaworld.org>
Date: Sun, 4 Jan 2015 21:56:55 +0000 (+0100)
Subject: initial checkin of debin image builder
X-Git-Url: https://hackdaworld.org/gitweb/?a=commitdiff_plain;h=b0954d42425046f559118b2cba77b718f5be5295;p=outofuni%2Fdib.git

initial checkin of debin image builder
---

b0954d42425046f559118b2cba77b718f5be5295
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..3446087
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,216 @@
+#!/bin/bash
+
+# debian image build tool
+# author hackbard@hackdaworld.org
+
+function check_prereq() {
+	# read config
+	[ -f ./config.build ] && . ./config.build
+	# check
+	tc="gcc-`echo $MAKEOPT | sed 's/.*\ CROSS_COMPILE=\(.*\)-.*/\1/'`"
+	deps=0
+	for deb in debootstrap binfmt-support qemu-user-static $tc; do
+		ip=`dpkg -l | grep $deb | awk '{ print $2 }'`
+		if [ -z "$ip" ]; then
+			echo "package $deb required but not installed"
+			deps=1
+		fi
+	done
+	if [ "$deps" = "1" ]; then
+		echo "install prerequisites"
+		exit 1
+	fi
+}
+
+function umount_if_mounted() {
+	mnt=$1
+	rpath="`realpath $PWD`"
+	mntpt=`mount | grep $rpath/$mnt | awk '{ print $3 }'`
+	if [ ! -z "$mntpt" ]; then
+		echo "umounting $mntpt"
+		umount $mntpt
+	fi
+}
+
+function build_all {
+	# read config
+	[ -f ./config.build ] && . ./config.build
+	# build stage 1
+	if [ -f .build_stage1 ]; then
+		echo "stage one already done, skipping ..."
+	else
+		echo "building debian image, first stage ..."
+		# image
+		validimg="no"
+		if [ -f ./rootfs.img ]; then
+			size=`ls -al ./rootfs.img | awk '{ print $5/1048576 }'`
+			if [ "$size" = "$IMGSIZE" ]; then
+				echo "rootfs.img exists"
+				validimg="yes"
+			else
+				echo "creating rootfs.img"
+			fi
+		fi
+		if [ "$validimg" = "no" ]; then
+			dd if=/dev/zero of=./rootfs.img bs=1M count=$IMGSIZE
+		fi
+		mkfs.${ROOTFS} -f -L rootfs ./rootfs.img
+		# mount
+		umount_if_mounted rootfs.mnt
+		rm -rf rootfs.mnt
+		mkdir rootfs.mnt
+		mount -o loop ./rootfs.img ./rootfs.mnt
+		# debootstrap first part
+		debootstrap --verbose --arch $ARCH --variant=minbase \
+			--foreign $SUITE rootfs.mnt $DEBMIRROR
+		# copy emulator
+		cp -v `which $EMU` ./rootfs.mnt/usr/bin
+		touch .build_stage1
+	fi
+	# copy myself
+	cp -v ./build.sh ./rootfs.mnt
+	cp -v ./config.build ./rootfs.mnt
+	if [ ! -f .build_stage2 ]; then
+		# prepare/run second stage
+		modprobe binfmt_misc
+		mnts="rootfs.mnt/dev/pts rootfs.mnt/proc"
+		for mnt in $mnts; do 
+			umount_if_mounted $mnt
+		done
+		mount -t proc proc ./rootfs.mnt/proc
+		mkdir -p ./rootfs.mnt/dev/pts
+		mount -t devpts devpts ./rootfs.mnt/dev/pts
+		chroot ./rootfs.mnt /build.sh chroot
+		#
+		# running build_stage2()
+		#
+		for mnt in $mnts; do 
+			umount_if_mounted $mnt
+		done
+		touch .build_stage2
+		# cleanup
+		rm -v ./rootfs.mnt/build.sh
+		rm -v ./rootfs.mnt/config.build
+	fi
+}
+
+function build_in_chroot {
+	# read config
+	[ -f ./config.build ] && . ./config.build
+	# build second stage
+	echo "building debian image, second stage ..."
+	[ -f /debootstrap/debootstrap ] && \
+		/debootstrap/debootstrap --second-stage
+	# additional packages + configuration
+	echo "deb ${DEBMIRROR}/ $SUITE main contrib non-free" > \
+		/etc/apt/sources.list
+	echo "deb-src ${DEBMIRROR}/ $SUITE main contrib non-free" >> \
+		/etc/apt/sources.list
+	# run apt
+	apt-get update
+	apt-get -y install $PKGS
+	# locales
+	locale-gen --purge en_US.UTF-8
+	echo 'LANG="en_US.UTF-8"' > /etc/default/locale
+	echo 'LANGUAGE="en_US:en"' >> /etc/default/locale
+	# network
+	echo -en "auto lo\niface lo inet loopback\n" > /etc/network/interfaces
+	echo -en "auto eth0\niface eth0 inet dhcp\n" >> /etc/network/interfaces
+	echo -en "auto usb0\niface usb0 inet dhcp\n" >> /etc/network/interfaces
+	# login on serial console
+	num=`echo $GETTY | sed 's/\([a-zA-Z].*\)\([0-9].*\)/\2/'`
+	echo "T${num}:2345:respawn:/sbin/getty -L $GETTY 115200 linux" >> \
+		/etc/inittab
+	# hostname
+	echo $NAME > /etc/hostname
+	# root
+	echo "/dev/root / $ROOTFS defaults 0 1" > /etc/fstab
+	# behavior of boot scripts	
+	echo "HWCLOCKACCESS=no" >> /etc/default/rcS
+	echo "CONCURRENCY=shell" >> /etc/default/rcS
+	# additional packages
+	apt-get -y install $ADDPKGS
+	# (un)set passwd
+	passwd -d root
+	# profile
+	echo -en "\nalias l='ls -al --color'\n\n" >> /etc/profile
+}
+
+#
+# post chroot tasks
+#
+
+function build_uboot() {
+	[ -f ./config.build ] && . ./config.build
+	git clone $UBSRC
+	cd u-boot
+	if [ ! -z "$UBVER" ]; then
+		git checkout $UBVER
+	fi
+	if [ ! -z "$UBPATCH" ]; then
+		patch -Nfp1 < ../patches/$UBPATCH
+	fi
+	make $MAKEOPT distclean
+	make $MAKEOPT $UBCONF
+	make $MAKEOPT
+	cd ..
+}
+
+function build_kernel() {
+	[ -f ./config.build ] && . ./config.build
+	KV=`echo $KERVER | awk -F. '{
+		if($1=="3") print "3.x"
+		else print$1 "." $2
+	}'`
+	KERSRC="https://www.kernel.org/pub/linux/kernel/"
+	KERSRC="$KERSRC/v$KV/linux-${KERVER}.tar.bz2"
+	wget $KERSRC
+	tar xfj linux-${KERVER}.tar.bz2
+	cd linux-$KERVER
+	if [ ! -z "$KERPATCH" ]; then
+	patch -Nfp1 < ../patches/$PATCH
+	fi
+	make $MAKEOPT mrproper
+	if [ ! -z "$KERHOOK" ]; then
+		$KERHOOK
+	fi
+	if [ ! -z "$KERCONF" ]; then
+		make $MAKEOPT $KERCONF
+	fi
+	make $MAKEOPT zImage
+	make $MAKEOPT modules
+	make $MAKEOPT INSTALL_MOD_PATH=../rootfs.mnt modules_install
+	cd ..
+}
+
+function build_sdcard() {
+	echo "creating sdcard ..."
+}
+
+#
+# main
+#
+
+# configuration	
+if [ ! -f ./config.build ]; then
+	echo "no configuration found, aborting ..."
+else
+	. ./config.build
+fi
+
+# check prerequisites
+check_prereq
+
+# debootstrap
+if [ -z $1 ]; then
+	build_all > ./build.log 2>&1
+elif [ "$1" = "chroot" ]; then
+	build_in_chroot > ./build_in_chroot.log 2>&1
+elif [ "$1" = "uboot" ]; then
+	build_uboot > ./build_uboot.log 2>&1
+elif [ "$1" = "kernel" ]; then
+	build_kernel > ./build_kernel.log 2>&1
+else 
+	echo "unknown option: '$1'"
+fi
+
diff --git a/config.build b/config.build
new file mode 100644
index 0000000..edb6257
--- /dev/null
+++ b/config.build
@@ -0,0 +1,71 @@
+# debian image build configuration
+
+#
+# size of the image in MB
+#
+# 2GB - 48MB
+IMGSIZE=2000
+
+#
+# target architecture / suite
+#
+ARCH=arm
+#ARCH=armel
+MAKEOPT="ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-"
+#MAKEOPT="ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-"
+EMU=qemu-arm-static
+SUITE=unstable
+
+# name
+NAME=beagleboard
+#NAME=nellboard
+
+#
+# filesystems
+#
+ROOTFS=xfs
+#ROOTFS=ext4
+BOOTFS=ext3
+
+# debian mirror
+DEBMIRROR=http://ftp.de.debian.org/debian
+
+# packages
+PKGS="apt-utils dialog locales"
+
+# serial console
+GETTY=ttyO0
+
+# add your packages here
+ADDPKGS="vim git make gcc lua5.2 golang net-tools iputils-ping kmod"
+ADDPKGS="$ADDPKGS wget openssh-server"
+# beagle
+# nellboard
+#ADDPKGS="$ADDPKGS python dnsmasq" 
+
+#
+# kernel
+#
+# beagleboard
+#  use/copy debian linux-image package!
+# nellboard
+KERVER="2.6.33"
+KERPATCH="linux-2.6.33_lpc313x-v1.01.patch"
+KERCONF="ea313x_defconfig"
+KERHOOK="sed 's/# CONFIG_DEVTMPFS.*/CONFIG_DEVTMPFS=y/' -i ./arch/arm/configs/ea313x_defconfig;"
+KERHOOK="sed 's/# CONFIG_EXT4_FS.*/CONFIG_EXT4_FS=y/' -i ./arch/arm/configs/ea313x_defconfig;"
+KERHOOK="$KERHOOK cp ../files/lpc313x/ea313x.c arch/arm/mach-lpc313x/;"
+
+#
+# u-boot patch and target
+#
+UBSRC="git://git.denx.de/u-boot.git"
+# beagleboard
+#UBSRC=""
+#UBPATCH=""
+UBCONF=omap3_beagle_config
+# nellboard
+#UBVER="v2009.11"
+#UBPATCH="u-boot-2009.11_lpc313x-v1.01.patch"
+#UBCONF="EA3131_config"
+