Add Ti(ny) Lo(ader) build script
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This commit is contained in:
wesley van tilburg 2024-03-07 21:40:33 +01:00
parent cb861565a0
commit f041247eef

69
tilo/build.sh Executable file
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#!/bin/sh
#get latest non patch release candidate kernel and busybox version
busybox_latest="$(curl -s "https://api.github.com/repos/mirror/busybox/tags" | jq -r '.[0].name' | tr "_" ".")"
kernel_latest="$(curl -s "https://api.github.com/repos/torvalds/linux/tags" | jq -r '.[] .name' | awk '$0 !~/-/' | head -n1 | cut -c2-4)"
#backups for when hitting ratelimits during testing :)
#kernel_latest="6.7"
#busybox_latest="1.36.0"
echo "Using kernel version: $kernel_latest"
echo "Using busybox version: $busybox_latest"
kernel_major="$(echo "$kernel_latest" | cut -c1)"
kernel_url="https://mirrors.edge.kernel.org/pub/linux/kernel/v$kernel_major.x"
mkdir -p src
cd src
wget "$kernel_url/linux-$kernel_latest.tar.xz"
tar -xf linux-$kernel_latest.tar.xz
cd linux-$kernel_latest
make defconfig
make -j 8 || exit
cd ..
wget https://busybox.net/downloads/busybox-$busybox_latest.tar.bz2
tar -xf busybox-$busybox_latest.tar.bz2
cd busybox-$busybox_latest
make defconfig
sed 's/^.*CONFIG_STATIC[^_].*$/CONFIG_STATIC=y/g' -i .config
make -j$(nproc) || exit
cd ..
cd ..
cp src/linux-$kernel_latest/arch/x86/boot/bzImage ./
mkdir initrd
cd initrd
mkdir -p bin dev proc sys
cd bin
cp ../../src/busybox-$busybox_latest/busybox ./
for prog in $(./busybox --list); do
ln -s /bin/busybox ./$prog
done
cd ..
echo '#!/bin/sh' > init
echo 'mount -t sysfs sysfs /sys' >> init
echo 'mount -t proc proc /proc' >> init
echo 'mount -t devtmpfs udev /dev' >> init
echo 'sysctl -w kernel.printk="2 4 1 7"' >> init
echo 'clear' >> init
#todo: recompile to check if this fixes ctrl +c issues
echo '::respawn:-/bin/sh' >> init
#echo '/bin/sh' >> init
chmod -R 777 .
find . | cpio -o -H newc > ../initrd.img
cd ..