If the same username exists on both target and the build host, but the uids differ, and we start target via NFS, then the uid for the user will be incorrect on target. For example, if postfix's uid on host is 119 and on target is 1024, then if we start target via NFS, the uid for postfix will be 119. The root cause is that when we use runqemu-extract-sdk to generate the NFS rootfs for later use, the tar command will respect the username instead of uid. So if PSEUDO_PASSWD environment is not set correctly, the host /etc/passwd will be used, resulting in wrong uids. The situation for gid is completely analogous to that of uid. It's almost impossible for the runqemu-extract-sdk to guess the correct location of the needed password file merely based on the target tarball name. This patch solves this problem by adding the '--numeric-owner' option to the tar command so that the uid/gid will be used when extracting the tarball using runqemu-extract-sdk. In this situation, we'll always get the correct uid/gid after extracting the tarball. [YOCTO #5364] (From OE-Core rev: acce6ff1a77cfd29e3868faa89b120becb58bbbf) Signed-off-by: Chen Qi <Qi.Chen@windriver.com> Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
104 lines
3 KiB
Bash
Executable file
104 lines
3 KiB
Bash
Executable file
#!/bin/bash
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#
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# This utility extracts an SDK image tarball using pseudo, and stores
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# the pseudo database in var/pseudo within the rootfs. If you want to
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# boot QEMU using an nfsroot, you *must* use this script to create the
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# rootfs to ensure it is done correctly with pseudo.
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#
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# Copyright (c) 2010 Intel Corp.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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function usage() {
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echo "Usage: $0 <image-tarball> <extract-dir>"
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}
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if [ $# -ne 2 ]; then
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usage
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exit 1
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fi
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SYSROOT_SETUP_SCRIPT=`which oe-find-native-sysroot 2> /dev/null`
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if [ -z "$SYSROOT_SETUP_SCRIPT" ]; then
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echo "Error: Unable to find the oe-find-native-sysroot script"
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echo "Did you forget to source your build system environment setup script?"
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exit 1
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fi
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. $SYSROOT_SETUP_SCRIPT
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PSEUDO_OPTS="-P $OECORE_NATIVE_SYSROOT/usr"
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ROOTFS_TARBALL=$1
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SDK_ROOTFS_DIR=$2
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if [ ! -e "$ROOTFS_TARBALL" ]; then
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echo "Error: sdk tarball '$ROOTFS_TARBALL' does not exist"
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usage
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exit 1
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fi
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# Convert SDK_ROOTFS_DIR to a full pathname
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if [[ ${SDK_ROOTFS_DIR:0:1} != "/" ]]; then
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SDK_ROOTFS_DIR=$(pwd)/$SDK_ROOTFS_DIR
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fi
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TAR_OPTS=""
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if [[ "$ROOTFS_TARBALL" =~ tar\.bz2$ ]]; then
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TAR_OPTS="--numeric-owner -xjf"
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fi
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if [[ "$ROOTFS_TARBALL" =~ tar\.gz$ ]]; then
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TAR_OPTS="--numeric-owner -xzf"
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fi
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if [[ "$ROOTFS_TARBALL" =~ \.tar$ ]]; then
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TAR_OPTS="--numeric-owner -xf"
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fi
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if [ -z "$TAR_OPTS" ]; then
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echo "Error: Unable to determine sdk tarball format"
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echo "Accepted types: .tar / .tar.gz / .tar.bz2"
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exit 1
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fi
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if [ ! -d "$SDK_ROOTFS_DIR" ]; then
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echo "Creating directory $SDK_ROOTFS_DIR"
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mkdir -p "$SDK_ROOTFS_DIR"
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fi
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pseudo_state_dir="$SDK_ROOTFS_DIR/../$(basename "$SDK_ROOTFS_DIR").pseudo_state"
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if [ -e "$pseudo_state_dir" ]; then
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echo "Error: $pseudo_state_dir already exists!"
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echo "Please delete the rootfs tree and pseudo directory manually"
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echo "if this is really what you want."
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exit 1
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fi
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mkdir -p "$pseudo_state_dir"
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touch "$pseudo_state_dir/pseudo.pid"
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PSEUDO_LOCALSTATEDIR="$pseudo_state_dir"
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export PSEUDO_LOCALSTATEDIR
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echo "Extracting rootfs tarball using pseudo..."
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echo "$PSEUDO $PSEUDO_OPTS tar -C \"$SDK_ROOTFS_DIR\" $TAR_OPTS \"$ROOTFS_TARBALL\""
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$PSEUDO $PSEUDO_OPTS tar -C "$SDK_ROOTFS_DIR" $TAR_OPTS "$ROOTFS_TARBALL"
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DIRCHECK=`ls -l "$SDK_ROOTFS_DIR" | wc -l`
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if [ "$DIRCHECK" -lt 5 ]; then
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echo "Warning: I don't see many files in $SDK_ROOTFS_DIR"
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echo "Please double-check the extraction worked as intended"
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exit 0
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fi
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echo "SDK image successfully extracted to $SDK_ROOTFS_DIR"
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exit 0
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