From ce93de4f62940d9081ed441507ea10197f6f88cd Mon Sep 17 00:00:00 2001
From: Peter Hoeg <peter@hoeg.com>
Date: Tue, 27 Apr 2021 17:10:27 +0800
Subject: nixos/hyperv: bail gracefully if device is missing

---
 nixos/modules/virtualisation/hyperv-guest.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/virtualisation/hyperv-guest.nix b/nixos/modules/virtualisation/hyperv-guest.nix
index a3656c307f9..b3bcfff1980 100644
--- a/nixos/modules/virtualisation/hyperv-guest.nix
+++ b/nixos/modules/virtualisation/hyperv-guest.nix
@@ -56,6 +56,8 @@ in {
     systemd = {
       packages = [ config.boot.kernelPackages.hyperv-daemons.lib ];
 
+      services.hv-vss.unitConfig.ConditionPathExists = [ "/dev/vmbus/hv_vss" ];
+
       targets.hyperv-daemons = {
         wantedBy = [ "multi-user.target" ];
       };
-- 
cgit 1.4.1