From 3f731cab480a1ee15c138c9b80f9438c9af754bd Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Date: Mon, 07 Jan 2008 17:29:11 +0000
Subject: #5744: Don't copy files out from usb sticks, do a symlink instead.

---
diff --git a/src/olpc/datastore/backingstore.py b/src/olpc/datastore/backingstore.py
index e900649..1af0088 100644
--- a/src/olpc/datastore/backingstore.py
+++ b/src/olpc/datastore/backingstore.py
@@ -410,14 +410,13 @@ class FileBackingStore(BackingStore):
             if e.errno != errno.EPERM:
                 raise
 
-        # Try to link from the original file to the targetpath. This can fail if
-        # the file is in a different filesystem. Do a copy instead.
+        # Try to hard link from the original file to the targetpath. This can
+        # fail if the file is in a different filesystem. Do a symlink instead.
         try:
             os.link(path, targetpath)
         except OSError, e:
             if e.errno == errno.EXDEV:
-                shutil.copy(path, targetpath)
-                os.chmod(targetpath, 0604)
+                os.symlink(path, targetpath)
             else:
                 raise
             
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