Merge pull request #263360 from duament/nixos-rebuild-pipe

nixos-rebuild: use --pipe instead of --pty in systemd-run

nixos/tests/nixos-rebuild-install-bootloader.nix

@@ -60,7 +60,7 @@ import ./make-test-python.nix ({ pkgs, ... }: {
       # Need to run `nixos-rebuild` twice because the first run will install
       # GRUB anyway
       with subtest("Switch system again and install bootloader"):
-          result = machine.succeed("nixos-rebuild switch --install-bootloader")
+          result = machine.succeed("nixos-rebuild switch --install-bootloader 2>&1")
           # install-grub2.pl messages
           assert "updating GRUB 2 menu..." in result
           assert "installing the GRUB 2 boot loader on /dev/vda..." in result

pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh

@@ -756,7 +756,7 @@ if [[ "$action" = switch || "$action" = boot || "$action" = test || "$action" =
         "-E" "NIXOS_INSTALL_BOOTLOADER=$installBootloader"
         "--collect"
         "--no-ask-password"
-        "--pty"
+        "--pipe"
         "--quiet"
         "--same-dir"
         "--service-type=exec"