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()