feat: scheduling, usermode, shell

scripts/mkramdisk.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+# mkramdisk.sh - Create a USTAR tar archive for the ZenithOS ramdisk
+# Usage: ./scripts/mkramdisk.sh [input_dir] [output_path]
+
+set -e
+
+INPUT_DIR="${1:-programs/bin}"
+OUTPUT_PATH="${2:-ramdisk.tar}"
+
+if [ ! -d "$INPUT_DIR" ]; then
+    echo "mkramdisk: input directory '$INPUT_DIR' does not exist, creating empty ramdisk"
+    mkdir -p "$INPUT_DIR"
+    # Create a placeholder file so the tar isn't completely empty
+    echo "ZenithOS ramdisk" > "$INPUT_DIR/readme.txt"
+fi
+
+# Create USTAR tar archive
+tar --format=ustar -cf "$OUTPUT_PATH" -C "$INPUT_DIR" .
+
+echo "mkramdisk: created $OUTPUT_PATH from $INPUT_DIR ($(wc -c < "$OUTPUT_PATH") bytes)"