91 lines
2.8 KiB
Bash
Executable File
91 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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set -x
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set -e
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# This file is part of PrawnOS (https://www.prawnos.com)
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# Copyright (c) 2018 Hal Emmerich <hal@halemmerich.com>
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# PrawnOS 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
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# as published by the Free Software Foundation.
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# PrawnOS 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. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with PrawnOS. If not, see <https://www.gnu.org/licenses/>.
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if [ -z "$1" ]
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then
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echo "No kernel version supplied"
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exit 1
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fi
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if [ -z "$2" ]
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then
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echo "No filesystem image supplied"
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exit 1
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fi
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KVER=$1
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OUTNAME=$2
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TARGET=$3
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KERNEL_PACKAGE_PATH=$4
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KERNEL_PACKAGE=$5
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outmnt=$(mktemp -d -p "$(pwd)")
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outdev=/dev/loop7
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#A hacky way to ensure the loops are properly unmounted and the temp files are properly deleted.
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#Without this, a reboot is sometimes required to properly clean the loop devices and ensure a clean build
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cleanup() {
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set +e
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umount -l $outmnt > /dev/null 2>&1
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rmdir $outmnt > /dev/null 2>&1
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losetup -d $outdev > /dev/null 2>&1
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set +e
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umount -l $outmnt > /dev/null 2>&1
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rmdir $outmnt > /dev/null 2>&1
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losetup -d $outdev > /dev/null 2>&1
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}
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trap cleanup INT TERM EXIT
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#Mount the build filesystem image
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losetup -P $outdev $OUTNAME
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#mount the root filesystem
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mount -o noatime ${outdev}p2 $outmnt
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# put the kernel in the kernel partition, modules in /lib/modules and AR9271
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# firmware in /lib/firmware
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kernel_size=65536
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#blank the kernel partition first, with 32MiB of zeros
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dd if=/dev/zero of=${outdev}p1 conv=notrunc bs=512 count=$kernel_size
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#now write the new kernel
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dd if=build/$TARGET/linux-$KVER/vmlinux.kpart of=${outdev}p1 conv=notrunc
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# don't install modules for now
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#make -C build/$TARGET/linux-$KVER ARCH=arm INSTALL_MOD_PATH=$outmnt modules_install
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#install the kernel image package to the chroot so it can be updated by apt later
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#need to do funky things to avoid running the postinst script that dds the kernel to the kernel partition
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#maybe it would make more sense to run this on install, but then a usb booting device couldn't upgrade its kernel
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#TODO uncomment and test once arm64 is done
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# cp $KERNEL_PACKAGE_PATH $outmnt/
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# chroot $outmnt dpkg --unpack $KERNEL_PACKAGE
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# chroot $outmnt rm /var/lib/dpkg/info/$KERNEL_PACKAGE.postinst -f
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# chroot $outmnt dpkg --configure $KERNEL_PACKAGE
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# the ath9k firmware and initramfs is built into the kernel image, so nothing else must be done
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umount -l $outmnt > /dev/null 2>&1
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rmdir $outmnt > /dev/null 2>&1
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losetup -d $outdev > /dev/null 2>&1
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echo "DONE!"
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trap - INT TERM EXIT
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