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-rw-r--r--nixos/tests/installer.nix5
1 files changed, 4 insertions, 1 deletions
diff --git a/nixos/tests/installer.nix b/nixos/tests/installer.nix
index 4feed56cd67..32be1ea23b9 100644
--- a/nixos/tests/installer.nix
+++ b/nixos/tests/installer.nix
@@ -175,7 +175,10 @@ let
             # installer. This ensures the target disk (/dev/vda) is
             # the same during and after installation.
             virtualisation.emptyDiskImages = [ 512 ];
-            virtualisation.bootDevice = "/dev/vdb";
+            virtualisation.bootDevice =
+              if grubVersion == 1 then "/dev/sdb" else "/dev/vdb";
+            virtualisation.qemu.diskInterface =
+              if grubVersion == 1 then "scsi" else "virtio";
 
             hardware.enableAllFirmware = mkForce false;