Replicant

h1. GTA04 Installation

h2. Creating a system tarball

Once your Replicant build is ready (bootimage and systemimage), you need to create a system tarball:

<pre>

cd out/target/product/gta04/system

tar -cf ../system.tar .

cd ..

</pre>

h2. Flashing the kernel

You need to flash the kernel to the place your boot.scr will try to load it (usually from NAND).

h2. Setting up the sdcard

Connect the sdcard to your pc (running GNU/Linux) and run the following script (with nor arguments to see usage):

<pre>

#!/bin/sh

# Replicant GTA04 Install script

#

# Copyright (C) 2012 Paul Kocialkowski, GPLv2

#

# Based on mkcard.sh v0.5

# Copyright (C) 2009 Graeme Gregory <dp@xora.org.uk>, GPLv2

# Parts of the procudure base on the work of Denys Dmytriyenko

# http://wiki.omap.com/index.php/MMC_Boot_Format

#

# 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 2 of the License, or

# (at your option) any later version.

# 

# You should have received a copy of the GNU General Public License

# along with this program. If not, see <http://www.gnu.org/licenses/>.

# Env vars

export LC_ALL=C

# Global vars

DRIVE=""

DRIVE_NAME=""

DRIVE_SIZE=""

DRIVE_CYLINDERS=""

DRIVE_PART=""

SYSTEM_AR=""

MOUNT_BASE="/media"

# Functions

display_banner() {

	echo "Replicant GTA04 installer"

	echo ""

}

display_help() {

	echo "Usage: $0 [DRIVE] [SYSTEM]"

	echo ""

	echo "Notes: "

	echo "- The [DRIVE] argument can be omitted"

	echo "- The [SYSTEM] argument must be a tar archive"

}

drive_select_list()

{

	drives_dir="/dev/disk/by-id/"

	count=0

	list=$( ls "$drives_dir" )

	for drive in $list

	do

		drive_nopart=$( echo "$drive" | sed "s/-part[0-9]*$//g" )

		if [ "$drive" = "$drive_nopart" ]

		then

			ls $drives_dir/$drive-part* 2> /dev/null > /dev/null

			if [ $? -eq 0 ]

			then

				count=$(( $count + 1 ))

				name=$( echo "$drive" | sed "s/^[^-]*-\(.*\)$/\1/g" )

				case "$1" in

					"show")

						echo "$count - $name"

					;;

					"store")

						if [ $count -eq $2 ]

						then

							DRIVE=$( readlink -f "$drives_dir/$drive" )

							DRIVE_NAME="$name"

						fi

					;;

				esac

			fi

		fi

	done 

}

drive_select()

{

	echo "Available devices:"

	drive_select_list "show"

	echo -n "Choice: "

	read choice

	drive_select_list "store" $choice

	echo ""

}

drive_write_confirm() {

	if [ "$DRIVE" = "" ]

	then

		echo "Wrong drive block"

		exit 1

	fi

	echo "This is going to erase the following drive:"

	if [ "$DRIVE_NAME" != "" ]

	then

		echo "- $DRIVE_NAME ($DRIVE)"

	else

		echo "- $DRIVE"

	fi

	echo ""

	echo -n "Are you sure? "

	read confirm

	if [ "$confirm" = "y" ] || [ "$confirm" = "Y" ]

	then

		echo ""

		return

	else

		exit 0

	fi

}

drive_umount() {

	umount $DRIVE* 2> /dev/null

}

drive_empty() {

	dd if=/dev/zero of="$DRIVE" bs=1024 count=1024

}

drive_infos_get() {

	DRIVE_SIZE=$( fdisk -l "$DRIVE" | grep Disk | grep bytes | awk '{print $5}' )

	DRIVE_CYLINDERS=$( echo "$DRIVE_SIZE/255/63/512" | bc )

}

drive_partitions_set() {

	system_size=$( echo "(250 * 1024 * 1024) / ($DRIVE_SIZE/$DRIVE_CYLINDERS)" | bc )

	data_size=$( echo "(250 * 1024 * 1024) / ($DRIVE_SIZE/$DRIVE_CYLINDERS)" | bc )

	cache_size=$( echo "(100 * 1024 * 1024) / ($DRIVE_SIZE/$DRIVE_CYLINDERS)" | bc )

	{

		echo ",$system_size,83"

		echo ",$data_size,83"

		echo ",$cache_size,83"

		echo ",,0c"

	} | sfdisk -D -H 255 -S 63 -C "$DRIVE_CYLINDERS" "$DRIVE"

	mkfs.ext2 -L "system" "${DRIVE}1"

	mkfs.ext2 -L "data" "${DRIVE}2"

	mkfs.ext2 -L "cache" "${DRIVE}3"

	mkfs.vfat -F 32 -n "storage" "${DRIVE}4"

}

system_write() {

	echo "Writing system files"

	mkdir -p "$MOUNT_BASE/system"

	mount "${DRIVE}1" "$MOUNT_BASE/system"

	tar -p -xf $SYSTEM_AR -C "$MOUNT_BASE/system"

	dir=$( pwd )

	echo "Syncing files"

	cd "$MOUNT_BASE/system"

	sync

	cd "$dir"

}

display_end() {

	echo ""

	echo "Your drive is now ready to be used!"

}

drive_eject() {

	eject "$DRIVE"

}

# Script start

if [ $# -eq 0 ]

then

	display_help

	exit 1

fi

if [ $# -eq 1 ]

then

	SYSTEM_AR=$1

fi

if [ $# -eq 2 ]

then

	DRIVE=$1

	SYSTEM_AR=$2

fi

display_banner

if [ "$DRIVE" = "" ]

then

	drive_select

fi

drive_write_confirm

drive_umount

drive_empty

drive_infos_get

drive_partitions_set

system_write

display_end

drive_eject

</pre>