#!/bin/bash # # This utility extracts an SDK image tarball using pseudo, and stores # the pseudo database in var/pseudo within the rootfs. If you want to # boot QEMU using an nfsroot, you *must* use this script to create the # rootfs to ensure it is done correctly with pseudo. # # Copyright (c) 2010 Intel Corp. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as # published by the Free Software Foundation. # # 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, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA function usage() { echo "Usage: $0 <image-tarball> <extract-dir>" } if [ $# -ne 2 ]; then usage exit 1 fi SYSROOT_SETUP_SCRIPT=`which oe-find-native-sysroot 2> /dev/null` if [ -z "$SYSROOT_SETUP_SCRIPT" ]; then echo "Error: Unable to find the oe-find-native-sysroot script" echo "Did you forget to source your build system environment setup script?" exit 1 fi . $SYSROOT_SETUP_SCRIPT PSEUDO_OPTS="-P $OECORE_NATIVE_SYSROOT/usr" ROOTFS_TARBALL=$1 SDK_ROOTFS_DIR=$2 if [ ! -e "$ROOTFS_TARBALL" ]; then echo "Error: sdk tarball '$ROOTFS_TARBALL' does not exist" usage exit 1 fi # Convert SDK_ROOTFS_DIR to a full pathname if [[ ${SDK_ROOTFS_DIR:0:1} != "/" ]]; then SDK_ROOTFS_DIR=$(pwd)/$SDK_ROOTFS_DIR fi TAR_OPTS="" if [[ "$ROOTFS_TARBALL" =~ tar\.bz2$ ]]; then TAR_OPTS="-xjf" fi if [[ "$ROOTFS_TARBALL" =~ tar\.gz$ ]]; then TAR_OPTS="-xzf" fi if [[ "$ROOTFS_TARBALL" =~ \.tar$ ]]; then TAR_OPTS="-xf" fi if [ -z "$TAR_OPTS" ]; then echo "Error: Unable to determine sdk tarball format" echo "Accepted types: .tar / .tar.gz / .tar.bz2" exit 1 fi if [ ! -d "$SDK_ROOTFS_DIR" ]; then echo "Creating directory $SDK_ROOTFS_DIR" mkdir -p "$SDK_ROOTFS_DIR" fi pseudo_state_dir="$SDK_ROOTFS_DIR/../$(basename "$SDK_ROOTFS_DIR").pseudo_state" if [ -e "$pseudo_state_dir" ]; then echo "Error: $pseudo_state_dir already exists!" echo "Please delete the rootfs tree and pseudo directory manually" echo "if this is really what you want." exit 1 fi mkdir -p "$pseudo_state_dir" touch "$pseudo_state_dir/pseudo.pid" PSEUDO_LOCALSTATEDIR="$pseudo_state_dir" export PSEUDO_LOCALSTATEDIR echo "Extracting rootfs tarball using pseudo..." echo "$PSEUDO $PSEUDO_OPTS tar -C \"$SDK_ROOTFS_DIR\" $TAR_OPTS \"$ROOTFS_TARBALL\"" $PSEUDO $PSEUDO_OPTS tar -C "$SDK_ROOTFS_DIR" $TAR_OPTS "$ROOTFS_TARBALL" DIRCHECK=`ls -l "$SDK_ROOTFS_DIR" | wc -l` if [ "$DIRCHECK" -lt 5 ]; then echo "Warning: I don't see many files in $SDK_ROOTFS_DIR" echo "Please double-check the extraction worked as intended" exit 0 fi echo "SDK image successfully extracted to $SDK_ROOTFS_DIR" exit 0