--- distro.py.orig	2017-12-24 16:29:31 UTC
+++ distro.py
@@ -1,4 +1,4 @@
-# Copyright 2015,2016 Nir Cohen
+# Copyright 2015,2016,2017 Nir Cohen
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -932,9 +932,16 @@ class LinuxDistribution(object):
                 cmd = ('lsb_release', '-a')
                 stdout = subprocess.check_output(cmd, stderr=devnull)
             except OSError:  # Command not found
-                return {}
+                try:
+                    cmd = ('uname', '-rs')
+                    stdout = subprocess.check_output(cmd, stderr=devnull)
+                except OSError:
+                    return {}
         content = stdout.decode(sys.getfilesystemencoding()).splitlines()
-        return self._parse_lsb_release_content(content)
+        if cmd[0] == 'lsb_release':
+            return self._parse_lsb_release_content(content)
+        else:
+            return self._parse_uname_content(content)
 
     @staticmethod
     def _parse_lsb_release_content(lines):
@@ -958,6 +965,18 @@ class LinuxDistribution(object):
                 continue
             k, v = kv
             props.update({k.replace(' ', '_').lower(): v.strip()})
+        return props
+
+    @staticmethod
+    def _parse_uname_content(lines):
+        props = {}
+        match = re.search(r'^([^\s]+)\s+([\d\.]+)', lines[0].strip())
+        if match:
+            name, version = match.groups()
+            props['id'] = name.lower()
+            props['distributor_id'] = name
+            props['release'] = version
+            props['description'] = name + ' ' + version
         return props
 
     @cached_property
--- tests/resources/distros/freebsd111/bin/uname.orig	2017-12-31 03:40:48 UTC
+++ tests/resources/distros/freebsd111/bin/uname
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+echo "FreeBSD 11.1-RELEASE"
+
--- tests/resources/distros/netbsd711/bin/uname.orig	2017-12-31 03:40:48 UTC
+++ tests/resources/distros/netbsd711/bin/uname
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+echo "NetBSD 7.1.1"
+
--- tests/resources/distros/openbsd62/bin/uname.orig	2017-12-31 03:40:48 UTC
+++ tests/resources/distros/openbsd62/bin/uname
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+echo "OpenBSD 6.2"
+
--- tests/test_distro.py.orig	2017-12-24 16:26:25 UTC
+++ tests/test_distro.py
@@ -450,6 +450,36 @@ class TestLSBRelease(DistroTestCase):
     #     }
     #     self._test_outcome(desired_outcome)
 
+    def test_openbsd62_uname(self):
+        self._test_outcome({
+            'id': 'openbsd',
+            'name': 'OpenBSD',
+            'version': '6.2',
+            'pretty_name': 'OpenBSD 6.2',
+            'pretty_version': '6.2',
+            'best_version': '6.2'
+        })
+
+    def test_netbsd711_uname(self):
+        self._test_outcome({
+            'id': 'netbsd',
+            'name': 'NetBSD',
+            'version': '7.1.1',
+            'pretty_name': 'NetBSD 7.1.1',
+            'pretty_version': '7.1.1',
+            'best_version': '7.1.1'
+        })
+
+    def test_freebsd111_uname(self):
+        self._test_outcome({
+            'id': 'freebsd',
+            'name': 'FreeBSD',
+            'version': '11.1',
+            'pretty_name': 'FreeBSD 11.1',
+            'pretty_version': '11.1',
+            'best_version': '11.1'
+        })
+
     def test_ubuntu14normal_lsb_release(self):
         self._setup_for_distro(os.path.join(TESTDISTROS, 'lsb',
                                             'ubuntu14_normal'))