Update README.md

Author: scopeInfinity

README.md

@@ -2,15 +2,22 @@
 Experimental OS
 
 - Not yet ready.
-- It's experimental. So it's safe to assume that the burn operation can be destructive.
-- Use it at your own risk. 
 
 #### Usage
-- Fix constants in `scripts/run.sh`
-  - Just a helpful script for sometime.
-  - Point `${DISK}` to the disk file.
-- Execute `scripts/run.sh` and for build and then burn.
+- Use make to build binaries and image files.
+  - `make`
 
-##### Boot from Flash Drive
-- It's might better to format drive with MBR with a FAT partition.
-- Burn it with image.
+##### Boot image on a VM
+  - Create *Virtual Machine Disk* with fixed size of *4MB*.
+  - Burn `build/image.vmdk` to `new-disk-flat.vmdk`
+    - `bash scripts/burn.sh build/image.vmdk /path/to/build/new-disk-flat.vmdk`
+  - Or replace `new-disk-flat.vmdk` with a sym-link to `build/image.vmdk` :grin:
+
+##### Boot image on a real machine
+  - Use `dd` or `scripts/burn.sh` to burn image into the disk (potentially destructive).
+  - ```
+    bash scripts/burn.sh build/image.vmdk /path/to/devicefile
+    ```
+###### Issues on booting from the Flash Drive
+- Try formatting device MBR with a FAT partition.
+- And then burn it again with test image.