Updates hydra: b1fbc8f TODO: booting issues

diff --git a/hydra b/hydra
index 5e68ff28f2370e05f7bee258a2d61924dd569e8c..b1fbc8ff4ce8ec1b848068c024bd70de1b90744f 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit 5e68ff28f2370e05f7bee258a2d61924dd569e8c
+Subproject commit b1fbc8ff4ce8ec1b848068c024bd70de1b90744f