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@@ -1,2 +1,20 @@
-# bootdisk
+# bootdisk by Matmoul
 Simple command to boot device with QEMU/KVM
+
+## Usage :</br>
+`bootdisk [options] device|file`</br>
+ 
+ Device | File :</br>
+ `/dev/sda, /dev/sdb`</br>
+ `file.iso`</br>
+ 
+ Options :</br>
+  `--help`</br>
+  `-wd : Work Dir (default in tmp random folder, mktemp)`</br>
+  `-wdp : Work Dir Persistent`</br>
+  `-boot : Boot mode [bios|efi|tpm|secure] (default : efi)`</br>
+  `-cores : CPU cores`</br>
+  `-mem : Memory in Mb`</br>
+  `-dd : additional device`</br>
+  `-cdr : Force boot dev as cd-rom (not needed for iso file)`</br>
+  `-overlay : Add overlay on boot device`</br>