128 lines
3.1 KiB
Bash
Executable File
128 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (c) 2012 NTT DOCOMO, INC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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if [ $# -lt 2 ]; then
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cat <<EOF
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usage: $0 OUTFILE KERNEL_VERSION [MODULE_ROOT]
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EOF
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exit 1
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fi
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BUSYBOX=${BUSYBOX:-$(which busybox)}
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if [ -z "$BUSYBOX" ]; then
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echo "busybox is not found in PATH" 1>&2
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echo "Please set environment variable BUSYBOX to path to busybox executable" 1>&2
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exit 1
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fi
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function fullpath() {
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local f=$1
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if [ "${f#/}" = "$f" ]; then
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echo `pwd`/"$f"
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else
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echo "$f"
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fi
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}
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DIR=`dirname "$0"`
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INIT="$DIR/scripts/init"
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FUNCTIONS_D="$DIR/scripts/d"
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LIB_UDEV="$DIR/udev"
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DEST=`fullpath "$1"`
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KERNEL_VERSION=$2
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MODULE_ROOT=${3:-""}
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MODULE_DIR=$MODULE_ROOT/lib/modules/$KERNEL_VERSION
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FIRMWARE_DIR=$MODULE_ROOT/lib/firmware
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if [ ! -d "$MODULE_DIR" ]; then
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echo "ERROR: kernel module directory not found at $MODULE_DIR"
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return 1
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fi
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INITRD_DIR=`mktemp -t -d baremetal-mkinitrd.XXXXXXXX`
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if [ $? -ne 0 ]; then
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exit 1
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fi
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function cleanup() {
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rm -r "$INITRD_DIR"
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}
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trap cleanup EXIT
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echo "working in $INITRD_DIR"
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mkdir -p "$INITRD_DIR/bin"
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ln -s bin "$INITRD_DIR/sbin"
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mkdir -p "$INITRD_DIR/lib"
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ln -s lib "$INITRD_DIR/lib64"
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mkdir -p "$INITRD_DIR/lib/modules"
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mkdir -p "$INITRD_DIR/etc"
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mkdir -p "$INITRD_DIR/etc/udev"
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cp -a "$LIB_UDEV" "$INITRD_DIR/lib/udev"
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mkdir -p "$INITRD_DIR/etc/modprobe.d"
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echo "blacklist evbug" > "$INITRD_DIR/etc/modprobe.d/blacklist.conf"
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mkdir -p "$INITRD_DIR/etc/udev"
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cat >"$INITRD_DIR/etc/udev/udev.conf" <<EOF
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udev_root="/dev"
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udev_rules="/lib/udev/rules.d"
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udev_log="no"
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EOF
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libs=
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for i in "$BUSYBOX" bash modprobe udevd udevadm wget tgtd tgtadm reboot shutdown; do
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if "$BUSYBOX" --list | grep "^$i\$" >/dev/null; then
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continue
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fi
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path=`which $i 2>/dev/null` || path=$i
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if ! [ -x "$path" ]; then
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echo "$i is not found in PATH" 2>&1
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exit 1
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fi
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cp -L "$path" "$INITRD_DIR/bin/"
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if l=`ldd "$path"`; then
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l=$( echo "$l" | grep '/' | tr "\t" " " )
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l=$( echo "$l" | sed 's/^.* => \([^ ]*\).*$/\1/' )
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l=$( echo "$l" | sed 's/^ *\([^ ]*\) *(0x[0-9a-f]*)/\1/' )
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l=$( echo "$l" | tr " " "\n" )
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libs=$( printf "%s\n%s\n" "$l" "$libs" | sort | uniq )
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fi
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done
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cp $libs "$INITRD_DIR/lib/"
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for i in $( "$BUSYBOX" --list ); do
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if [ -f "$INITRD_DIR/bin/$i" ]; then
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echo "skip $i"
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continue
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fi
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ln -s busybox "$INITRD_DIR/bin/$i"
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done
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cp -a "$MODULE_DIR" "$INITRD_DIR/lib/modules/$KERNEL_VERSION"
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cp -a "$FIRMWARE_DIR" "$INITRD_DIR/lib/firmware"
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cp "$INIT" "$INITRD_DIR/init"
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chmod +x $INITRD_DIR/init
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for F in "$FUNCTIONS_D"/* ; do
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cp "$F" "$INITRD_DIR"
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done
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(cd "$INITRD_DIR"; find . | cpio -o -H newc | gzip > "$DEST" )
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