From 61370082d63af8abd2ad40ecf962df17b2476f66 Mon Sep 17 00:00:00 2001
From: Thomas Waldmann <tw@waldmann-edv.de>
Date: Sat, 17 Dec 2016 00:37:00 +0100
Subject: [PATCH] catch errno.ENOSYS for mknod (win 10 lxsys)

mknod raises this when running as non-root under Windows 10's Linux Subsystem.
---
 borg/testsuite/archiver.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/borg/testsuite/archiver.py b/borg/testsuite/archiver.py
index 67b5e581b..815c8943a 100644
--- a/borg/testsuite/archiver.py
+++ b/borg/testsuite/archiver.py
@@ -311,7 +311,8 @@ class ArchiverTestCase(ArchiverTestCaseBase):
         except PermissionError:
             have_root = False
         except OSError as e:
-            if e.errno != errno.EINVAL:
+            # Note: ENOSYS "Function not implemented" happens as non-root on Win 10 Linux Subsystem.
+            if e.errno not in (errno.EINVAL, errno.ENOSYS):
                 raise
             have_root = False
         return have_root