tilo: build the system

tilo/build.sh

@@ -1,5 +1,7 @@
 #!/bin/sh
 
+set -e
+
 #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 '$0 !~/-/' | head -n1 | cut -c2-4)"
@@ -21,7 +23,7 @@ wget "$kernel_url/linux-$kernel_latest.tar.xz"
 tar -xf linux-$kernel_latest.tar.xz
 cd linux-$kernel_latest
 	make defconfig
-	make -j 8  || exit
+	make -j 8
 
 cd ..
 
@@ -30,40 +32,11 @@ 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
+	make -j$(nproc) 
   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 ..
-
-
 

tilo/initrd.sh

@@ -0,0 +1,63 @@
+#!/bin/sh
+
+set -e
+
+#extract the version of the compiled busybox :)
+busybox_ver="$(find  ./src/ -type d -maxdepth 1 -name "busy*" | cut -d- -f2)"
+
+mkdir initrd
+cd initrd
+	
+mkdir -p bin dev proc sys etc usr
+
+#Add busybox programs
+	cd bin
+		cp ../../src/busybox-$busybox_ver/busybox ./
+		for prog in $(./busybox --list); do
+			ln -s /bin/busybox ./$prog
+		done
+	cd ..
+
+
+#Create initial init 
+cat <<EOF >init
+#!/bin/sh
+mount -t sysfs sysfs /sys
+mount -t proc proc /proc
+mount -t devtmpfs udev /dev
+exec /bin/init
+clear
+EOF
+
+#Create busybox initrd
+echo "tty1::respawn:-/bin/sh" > ./etc/inittab
+
+#Create resolv.conf
+echo "nameserver 1.1.1.1" > ./etc/resolv.conf
+
+#Add curl + certificates for tls support
+
+ #Add static curl binary 
+  ver="$(curl -s "https://api.github.com/repos/stunnel/static-curl/tags" | jq -r '.[0].name' | tr "_" ".")"
+  rel="$(curl -s "https://api.github.com/repos/stunnel/static-curl/releases" | jq -r '.[0].name' | tr "_" ".")"
+  wget "https://github.com/stunnel/static-curl/releases/download/$rel/curl-linux-x86_64-musl-$ver.tar.xz"
+  tar xf curl-linux-x86_64-musl-$ver.tar.xz -C ./bin/
+  rm curl-linux-x86_64-musl-$ver.tar.xz
+
+ 
+  #Add certificates
+  ##very ugly way to extract the certs, but hey it just works :) 
+  container="$(podman run -d alpine:edge /bin/sh -c "apk add ca-certificates && update-ca-certificates && sleep 90")"
+  sleep 10 #make sure that the cmds are finished (except sleep ofc)
+  podman cp $container:/etc/ssl/ ./etc/
+  podman container rm -f $container
+
+
+#give perms to files, #todo: find a better way someday
+#prevents errors like "can't open /dev/tty1: no such file "
+chmod -R 777 .
+
+#Add all the files to a img
+find . | cpio -o -H newc > ../initrd.img
+
+cd ..