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#!/bin/sh
# Build one or more .subx files into an ELF binary, and package it up into a
# bootable ISO image with a Soso (https://github.com/ozkl/soso) kernel.
#
# Must be run on Linux.
#
# Soso is published under the 2-clause BSD license.
set -e
if [ $# -eq 0 ]
then
echo "Usage: `basename $0` file.subx ..."
exit 1
fi
echo "=== building SubX binary"
./ntranslate $*
mv a.elf init
chmod +x init
echo "=== constructing initramfs out of SubX binary"
dd if=/dev/zero of=initrd.fat bs=8M count=1
LOOP=`losetup -f`
sudo losetup $LOOP initrd.fat
sudo mkfs.vfat $LOOP
sudo mount $LOOP /mnt
cp init /mnt/
umount /mnt
losetup -d $LOOP
sync
chown $SUDO_USER:$SUDO_USER initrd.fat
echo "=== building soso kernel"
( cd kernel.soso
make
)
echo "=== generating mu_soso.iso"
mkdir -p outfs/boot/grub
cp kernel.soso/grub.cfg outfs/boot/grub
cp kernel.soso/kernel.bin outfs/boot/
cp initrd.fat outfs/boot/
grub-mkrescue -o mu_soso.iso outfs
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