From 939c6be54e65a2ad2b954f400287e70b95d44e0c Mon Sep 17 00:00:00 2001
From: Youfu Zhang <1315097+zhangyoufu@users.noreply.github.com>
Date: Thu, 2 Aug 2018 18:10:10 +0800
Subject: [PATCH] fix vlan interface bring up on boot

when the parent interface of a vlan interface is not up (yet), ip link cannot bring the vlan interface up
the vlan interface will be automatically brought up when the parent interface is up later
fix NixOS/nixpkgs#28620
---
 nixos/modules/tasks/network-interfaces-scripted.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/tasks/network-interfaces-scripted.nix b/nixos/modules/tasks/network-interfaces-scripted.nix
index f3f6a19318a2..be4251667584 100644
--- a/nixos/modules/tasks/network-interfaces-scripted.nix
+++ b/nixos/modules/tasks/network-interfaces-scripted.nix
@@ -473,7 +473,7 @@ let
               # Remove Dead Interfaces
               ip link show "${n}" >/dev/null 2>&1 && ip link delete "${n}"
               ip link add link "${v.interface}" name "${n}" type vlan id "${toString v.id}"
-              ip link set "${n}" up
+              ip link set "${n}" up || true
             '';
             postStop = ''
               ip link delete "${n}" || true