nixos/nixos-generate-config: fix proram path replacements

btrfs-progs was made optional in 2019 c01ea27ce356e1433da01a7b46ba40c880f2f2ac
because it didn't cross-compile. it now does

1 files changed, 3 insertions, 3 deletions

diff --git a/nixos/modules/installer/tools/nixos-generate-config.pl b/nixos/modules/installer/tools/nixos-generate-config.pl
index fe8c4fb1a6b..1220c1849d6 100644
--- a/nixos/modules/installer/tools/nixos-generate-config.pl
+++ b/nixos/modules/installer/tools/nixos-generate-config.pl
@@ -279,7 +279,7 @@ if (`lsblk -o TYPE` =~ "lvm") {
     push @initrdKernelModules, "dm-snapshot";
 }
 
-my $virt = `systemd-detect-virt`;
+my $virt = `@detectvirt@`;
 chomp $virt;
 
 
@@ -398,7 +398,7 @@ foreach my $fs (read_file("/proc/self/mountinfo")) {
     # Maybe this is a bind-mount of a filesystem we saw earlier?
     if (defined $fsByDev{$fields[2]}) {
         # Make sure this isn't a btrfs subvolume.
-        my $msg = `btrfs subvol show $rootDir$mountPoint`;
+        my $msg = `@btrfs@ subvol show $rootDir$mountPoint`;
         if ($? != 0 || $msg =~ /ERROR:/s) {
             my $path = $fields[3]; $path = "" if $path eq "/";
             my $base = $fsByDev{$fields[2]};
@@ -436,7 +436,7 @@ EOF
 
     # Is this a btrfs filesystem?
     if ($fsType eq "btrfs") {
-        my ($status, @info) = runCommand("btrfs subvol show $rootDir$mountPoint");
+        my ($status, @info) = runCommand("@btrfs@ subvol show $rootDir$mountPoint");
         if ($status != 0 || join("", @info) =~ /ERROR:/) {
             die "Failed to retrieve subvolume info for $mountPoint\n";
         }