[Xen-devel] [OSSTEST PATCH 25/62] persistent-net: Add overlay on installed systems >= stretch

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

This prepares the ground for turning off net.ifnames.  The actual
rules are gated on net.ifnames so right now there is no change.

Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 Osstest/Debian.pm | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Osstest/Debian.pm b/Osstest/Debian.pm
index 414cd897..e246c012 100644
--- a/Osstest/Debian.pm
+++ b/Osstest/Debian.pm
@@ -798,6 +798,13 @@ sub debian_overlays ($$) {
     };
     my $suite = $ho->{Suite};
     $maybe->('overlay');
+
+    # In stretch and later, net.ifnames=1, the fdo-style `predictable
+    # network device names', is the default; but it is anything but
+    # predictable, so we disable it.  Instead, we restore the
+    # 75-persistent-net-generator mechanism from jessie and earlier.
+    $maybe->("overlay-persistent-net") if $ho->{Suite} !~ m/wheezy|jessie/;
+
     $maybe->("overlay-$suite");
     $maybe->($c{OverlayLocal}, 'overlay-local.tar');
     $maybe->("$c{OverlayLocal}-$suite", 'overlay-local-$suite.tar');
-- 
2.11.0


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