103 lines
3.0 KiB
Bash
Executable File
103 lines
3.0 KiB
Bash
Executable File
|
|
#!/bin/sh -xe
|
|
|
|
#Build initramfs image
|
|
|
|
|
|
# This file is part of PrawnOS (http://www.prawnos.com)
|
|
# Copyright (c) 2018 Hal Emmerich <hal@halemmerich.com>
|
|
|
|
# PrawnOS 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.
|
|
|
|
# PrawnOS 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 PrawnOS. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
|
|
outmnt=$(mktemp -d -p `pwd`)
|
|
outdev=/dev/loop7
|
|
KVER=$1
|
|
ROOT_DIR=`pwd`
|
|
build_resources=$ROOT_DIR/resources/BuildResources
|
|
|
|
if [ ! -f $ROOT_DIR/PrawnOS-*-c201-libre-2GB.img-BASE ]
|
|
then
|
|
echo "No base filesystem, run 'make filesystem' first"
|
|
exit 1
|
|
fi
|
|
|
|
#A hacky way to ensure the loops are properly unmounted and the temp files are properly deleted.
|
|
#Without this, a reboot is sometimes required to properly clean the loop devices and ensure a clean build
|
|
cleanup() {
|
|
set +e
|
|
|
|
umount -l $outmnt > /dev/null 2>&1
|
|
rmdir $outmnt > /dev/null 2>&1
|
|
losetup -d $outdev > /dev/null 2>&1
|
|
|
|
set +e
|
|
|
|
umount -l $outmnt > /dev/null 2>&1
|
|
rmdir $outmnt > /dev/null 2>&1
|
|
losetup -d $outdev > /dev/null 2>&1
|
|
}
|
|
|
|
trap cleanup INT TERM EXIT
|
|
|
|
losetup -P $outdev $ROOT_DIR/PrawnOS-*-c201-libre-2GB.img-BASE
|
|
#mount the root filesystem
|
|
mount -o noatime ${outdev}p3 $outmnt
|
|
#mount the initramfs partition
|
|
mount -o noatime ${outdev}p2 $outmnt/boot
|
|
|
|
#make a skeleton filesystem
|
|
initramfs_src=$outmnt/InstallResources/initramfs_src
|
|
rm -rf $initramfs_src*
|
|
mkdir -p $initramfs_src
|
|
mkdir $initramfs_src/bin
|
|
mkdir $initramfs_src/dev
|
|
mkdir $initramfs_src/etc
|
|
mkdir $initramfs_src/newroot
|
|
mkdir $initramfs_src/proc
|
|
mkdir $initramfs_src/sys
|
|
mkdir $initramfs_src/sbin
|
|
mkdir $initramfs_src/run
|
|
mkdir $initramfs_src/lib
|
|
mkdir $initramfs_src/lib/arm-linux-gnueabihf
|
|
|
|
#install the few tools we need, and the supporting libs
|
|
cp $outmnt/bin/busybox $outmnt/sbin/cryptsetup $initramfs_src/bin/
|
|
cp $outmnt/lib/arm-linux-gnueabihf/libblkid.so.1 $initramfs_src/lib/arm-linux-gnueabihf/
|
|
cp $outmnt/lib/arm-linux-gnueabihf/libuuid.so.1 $initramfs_src/lib/arm-linux-gnueabihf/
|
|
cp $outmnt/lib/arm-linux-gnueabihf/libc.so.6 $initramfs_src/lib/arm-linux-gnueabihf/
|
|
|
|
cp $outmnt/lib/ld-linux-armhf.so.3 $initramfs_src/lib/
|
|
cp $outmnt/sbin/blkid $initramfs_src/bin/
|
|
|
|
#add the init script
|
|
cp $build_resources/initramfs-init $initramfs_src/init
|
|
chmod +x $initramfs_src/init
|
|
|
|
#compress and install
|
|
rm -rf $outmnt/boot/PrawnOS-initramfs.cpio.gz
|
|
cd $initramfs_src
|
|
ln -s busybox bin/cat
|
|
ln -s busybox bin/mount
|
|
ln -s busybox bin/sh
|
|
ln -s busybox bin/switch_root
|
|
ln -s busybox bin/umount
|
|
find . -print0 | cpio --null --create --verbose --format=newc | gzip --best > $outmnt/boot/PrawnOS-initramfs.cpio.gz
|
|
|
|
cd $ROOT_DIR
|
|
|
|
[ ! -d build ] && mkdir build
|
|
cd build
|
|
# store for kernel building
|
|
cp $outmnt/boot/PrawnOS-initramfs.cpio.gz .
|