nixos: Get rid of systemConfig kernel parameter

It was introduced in c10fe14 but removed in c4f910f.

It remained such that people with older generations in their boot
entries could still boot those. Given that the parameter hasn't had any
use in quite some years, it seems safe to remove now.

Fixes #60184

6 files changed, 6 insertions, 7 deletions

diff --git a/nixos/modules/installer/cd-dvd/system-tarball-fuloong2f.nix b/nixos/modules/installer/cd-dvd/system-tarball-fuloong2f.nix
index 8159576a62ac..123f487baf93 100644
--- a/nixos/modules/installer/cd-dvd/system-tarball-fuloong2f.nix
+++ b/nixos/modules/installer/cd-dvd/system-tarball-fuloong2f.nix
@@ -26,7 +26,7 @@ let
   # A clue for the kernel loading
   kernelParams = pkgs.writeText "kernel-params.txt" ''
     Kernel Parameters:
-      init=/boot/init systemConfig=/boot/init ${toString config.boot.kernelParams}
+      init=/boot/init ${toString config.boot.kernelParams}
   '';
 
   # System wide nixpkgs config
diff --git a/nixos/modules/installer/cd-dvd/system-tarball-pc.nix b/nixos/modules/installer/cd-dvd/system-tarball-pc.nix
index f2af7dcde3d5..a79209d7dfef 100644
--- a/nixos/modules/installer/cd-dvd/system-tarball-pc.nix
+++ b/nixos/modules/installer/cd-dvd/system-tarball-pc.nix
@@ -23,13 +23,13 @@ let
     label nixos
       MENU LABEL ^NixOS using nfsroot
       KERNEL bzImage
-      append ip=dhcp nfsroot=/home/pcroot systemConfig=${config.system.build.toplevel} init=${config.system.build.toplevel}/init rw
+      append ip=dhcp nfsroot=/home/pcroot init=${config.system.build.toplevel}/init rw
 
     # I don't know how to make this boot with nfsroot (using the initrd)
     label nixos_initrd
       MENU LABEL NixOS booting the poor ^initrd.
       KERNEL bzImage
-      append initrd=initrd ip=dhcp nfsroot=/home/pcroot systemConfig=${config.system.build.toplevel} init=${config.system.build.toplevel}/init rw
+      append initrd=initrd ip=dhcp nfsroot=/home/pcroot init=${config.system.build.toplevel}/init rw
 
     label memtest
       MENU LABEL ^${pkgs.memtest86.name}
diff --git a/nixos/modules/misc/crashdump.nix b/nixos/modules/misc/crashdump.nix
index 11dec37b3fae..796078d7ef8c 100644
--- a/nixos/modules/misc/crashdump.nix
+++ b/nixos/modules/misc/crashdump.nix
@@ -53,7 +53,7 @@ in
         ${pkgs.kexectools}/sbin/kexec -p /run/current-system/kernel \
         --initrd=/run/current-system/initrd \
         --reset-vga --console-vga \
-        --command-line="systemConfig=$(readlink -f /run/current-system) init=$(readlink -f /run/current-system/init) irqpoll maxcpus=1 reset_devices ${kernelParams}"
+        --command-line="init=$(readlink -f /run/current-system/init) irqpoll maxcpus=1 reset_devices ${kernelParams}"
       '';
       kernelParams = [
        "crashkernel=${crashdump.reservedMemory}"
diff --git a/nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh b/nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh
index 854684b87fac..5ffffb95edb1 100644
--- a/nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh
+++ b/nixos/modules/system/boot/loader/generic-extlinux-compatible/extlinux-conf-builder.sh
@@ -109,7 +109,7 @@ addEntry() {
             exit 1
         fi
     fi
-    echo "  APPEND systemConfig=$path init=$path/init $extraParams"
+    echo "  APPEND init=$path/init $extraParams"
 }
 
 tmpFile="$target/extlinux/extlinux.conf.tmp.$$"
diff --git a/nixos/modules/system/boot/loader/grub/install-grub.pl b/nixos/modules/system/boot/loader/grub/install-grub.pl
index 59f5638044fe..7af775f88b4f 100644
--- a/nixos/modules/system/boot/loader/grub/install-grub.pl
+++ b/nixos/modules/system/boot/loader/grub/install-grub.pl
@@ -459,7 +459,6 @@ sub addEntry {
     # FIXME: $confName
 
     my $kernelParams =
-        "systemConfig=" . Cwd::abs_path($path) . " " .
         "init=" . Cwd::abs_path("$path/init") . " " .
         readFile("$path/kernel-params");
     my $xenParams = $xen && -e "$path/xen-params" ? readFile("$path/xen-params") : "";
diff --git a/nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py b/nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py
index 97e824fe629c..6bee900c6830 100644
--- a/nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py
+++ b/nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py
@@ -101,7 +101,7 @@ def write_entry(profile, generation, machine_id):
         entry_file = "@efiSysMountPoint@/loader/entries/nixos-generation-%d.conf" % (generation)
     generation_dir = os.readlink(system_dir(profile, generation))
     tmp_path = "%s.tmp" % (entry_file)
-    kernel_params = "systemConfig=%s init=%s/init " % (generation_dir, generation_dir)
+    kernel_params = "init=%s/init " % generation_dir
 
     with open("%s/kernel-params" % (generation_dir)) as params_file:
         kernel_params = kernel_params + params_file.read()