From ebbb7165c5509963bd19db565cee3b8a26853b64 Mon Sep 17 00:00:00 2001
From: buckley310 <buckley310@users.noreply.github.com>
Date: Thu, 19 Dec 2019 15:03:21 -0500
Subject: [PATCH] nixos-generate-config: don't generate swapDevices for zram
 devices (#75921)

---
 nixos/modules/installer/tools/nixos-generate-config.pl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nixos/modules/installer/tools/nixos-generate-config.pl b/nixos/modules/installer/tools/nixos-generate-config.pl
index f2ffe61c42cb..7f98756a7d9f 100644
--- a/nixos/modules/installer/tools/nixos-generate-config.pl
+++ b/nixos/modules/installer/tools/nixos-generate-config.pl
@@ -335,6 +335,9 @@ if (@swaps) {
         next unless -e $swapFilename;
         my $dev = findStableDevPath $swapFilename;
         if ($swapType =~ "partition") {
+            # zram devices are more likely created by configuration.nix, so
+            # ignore them here
+            next if ($swapFilename =~ /^\/dev\/zram/);
             push @swapDevices, "{ device = \"$dev\"; }";
         } elsif ($swapType =~ "file") {
             # swap *files* are more likely specified in configuration.nix, so