Update power.sh

src/power.sh

@@ -35,6 +35,11 @@ boot() {
   fi
 
   error "Timeout while waiting for QEMU to boot the machine!"
+
+  local pid
+  pid=$(<"$QEMU_PID")
+  { kill -15 "$pid" || true; } 2>/dev/null
+
   return 0
 }
 
@@ -44,9 +49,7 @@ ready() {
   [ ! -s "$QEMU_PTY" ] && return 1
 
   local line="\"Windows Boot Manager\""
-  if grep -Fq "$line" "$QEMU_PTY"; then
-    return 0
-  fi
+  grep -Fq "$line" "$QEMU_PTY" && return 0
 
   return 1
 }