diff --git a/planetstack/hpc_observer/fsck.py b/planetstack/hpc_observer/fsck.py
index c1d833a..817d616 100644
--- a/planetstack/hpc_observer/fsck.py
+++ b/planetstack/hpc_observer/fsck.py
@@ -5,8 +5,8 @@
 import os
 import sys
 os.environ.setdefault("DJANGO_SETTINGS_MODULE", "planetstack.settings")
-sys.path.append("/opt/planetstack")
-from planetstack.config import Config, DEFAULT_CONFIG_FN
+sys.path.append("/opt/xos")
+from planetstack.config import Config, DEFAULT_CONFIG_FN, XOS_DIR
 from util.logger import Logger, logging
 from observer.syncstep import SyncStep
 
@@ -27,7 +27,7 @@
 			if hasattr(Config(), "observer_steps_dir"):
 				step_dir = Config().observer_steps_dir
 			else:
-				step_dir = "/opt/planetstack/observer/steps"
+				step_dir = XOS_DIR+"/observer/steps"
 
 		for fn in os.listdir(step_dir):
 			pathname = os.path.join(step_dir,fn)
@@ -58,7 +58,7 @@
 
 def main():
     if not "-C" in sys.argv:
-        print >> sys.stderr, "You probably wanted to use -C /opt/planetstack/hpc_observer/hpc_observer_config"
+        print >> sys.stderr, "You probably wanted to use -C " + XOS_DIR + "/hpc_observer/hpc_observer_config"
 
     # Generate command line parser
     parser = argparse.ArgumentParser(usage='%(prog)s [options]')
diff --git a/planetstack/hpc_observer/hpclib.py b/planetstack/hpc_observer/hpclib.py
index a4fa3b9..7986540 100644
--- a/planetstack/hpc_observer/hpclib.py
+++ b/planetstack/hpc_observer/hpclib.py
@@ -5,7 +5,7 @@
 import xmlrpclib
 
 if __name__ == '__main__':
-    sys.path.append("/opt/planetstack")
+    sys.path.append("/opt/xos")
     os.environ.setdefault("DJANGO_SETTINGS_MODULE", "planetstack.settings")
 
 from planetstack.config import Config
diff --git a/planetstack/hpc_observer/run.sh b/planetstack/hpc_observer/run.sh
index 3369a4a..8ebecc9 100644
--- a/planetstack/hpc_observer/run.sh
+++ b/planetstack/hpc_observer/run.sh
@@ -1 +1,2 @@
-python hpc-backend.py  -C /opt/planetstack/hpc_observer/hpc_observer_config
+export XOS_DIR=/opt/xos
+python hpc-backend.py  -C $XOS_DIR/hpc_observer/hpc_observer_config
diff --git a/planetstack/hpc_observer/start.sh b/planetstack/hpc_observer/start.sh
index b4df9f5..c24ca3e 100644
--- a/planetstack/hpc_observer/start.sh
+++ b/planetstack/hpc_observer/start.sh
@@ -1 +1,2 @@
-nohup python hpc-backend.py  -C /opt/planetstack/hpc_observer/hpc_observer_config > /dev/null 2>&1 &
+export XOS_DIR=/opt/xos
+nohup python hpc-backend.py  -C $XOS_DIR/hpc_observer/hpc_observer_config > /dev/null 2>&1 &
diff --git a/planetstack/hpc_observer/upload.sh b/planetstack/hpc_observer/upload.sh
deleted file mode 100644
index 1a1b90d..0000000
--- a/planetstack/hpc_observer/upload.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-scp hpc_observer_config run.sh start.sh  stop.sh  root@viccidev1.cs.princeton.edu:/opt/planetstack/hpc_observer/
-scp steps/*.py root@viccidev1.cs.princeton.edu:/opt/planetstack/hpc_observer/steps/
-scp deleters/*.py root@viccidev1.cs.princeton.edu:/opt/planetstack/hpc_observer/deleters/