diff --git a/nixos/modules/installer/cd-dvd/iso-image.nix b/nixos/modules/installer/cd-dvd/iso-image.nix
index 8891ce0b6667..96f7aac1d59d 100644
--- a/nixos/modules/installer/cd-dvd/iso-image.nix
+++ b/nixos/modules/installer/cd-dvd/iso-image.nix
@@ -46,17 +46,24 @@ let
 
     # A variant to boot with 'nomodeset'
     LABEL boot-nomodeset
-    MENU LABEL NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel} (with nomodeset)
+    MENU LABEL NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel} (nomodeset)
     LINUX /boot/bzImage
     APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} nomodeset
     INITRD /boot/initrd
 
     # A variant to boot with 'copytoram'
     LABEL boot-copytoram
-    MENU LABEL NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel} (with copytoram)
+    MENU LABEL NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel} (copytoram)
     LINUX /boot/bzImage
     APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} copytoram
     INITRD /boot/initrd
+
+    # A variant to boot with verbose logging to the console
+    LABEL boot-nomodeset
+    MENU LABEL NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel} (debug)
+    LINUX /boot/bzImage
+    APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} loglevel=7
+    INITRD /boot/initrd
   '';
 
   isolinuxMemtest86Entry = ''
@@ -74,25 +81,43 @@ let
     cp -v ${pkgs.systemd}/lib/systemd/boot/efi/systemd-boot${targetArch}.efi $out/EFI/boot/boot${targetArch}.efi
     mkdir -p $out/loader/entries
 
-    echo "title NixOS Live CD" > $out/loader/entries/nixos-livecd.conf
-    echo "linux /boot/bzImage" >> $out/loader/entries/nixos-livecd.conf
-    echo "initrd /boot/initrd" >> $out/loader/entries/nixos-livecd.conf
-    echo "options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams}" >> $out/loader/entries/nixos-livecd.conf
+    cat << EOF > $out/loader/entries/nixos-iso.conf
+    title NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel}
+    linux /boot/bzImage
+    initrd /boot/initrd
+    options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams}
+    EOF
 
     # A variant to boot with 'nomodeset'
-    echo "title NixOS Live CD (with nomodeset)" > $out/loader/entries/nixos-livecd-nomodeset.conf
-    echo "linux /boot/bzImage" >> $out/loader/entries/nixos-livecd-nomodeset.conf
-    echo "initrd /boot/initrd" >> $out/loader/entries/nixos-livecd-nomodeset.conf
-    echo "options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} nomodeset" >> $out/loader/entries/nixos-livecd-nomodeset.conf
+    cat << EOF > $out/loader/entries/nixos-iso-nomodeset.conf
+    title NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel}
+    version nomodeset
+    linux /boot/bzImage
+    initrd /boot/initrd
+    options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} nomodeset
+    EOF
 
     # A variant to boot with 'copytoram'
-    echo "title NixOS Live CD (with copytoram)" > $out/loader/entries/nixos-livecd-copytoram.conf
-    echo "linux /boot/bzImage" >> $out/loader/entries/nixos-livecd-copytoram.conf
-    echo "initrd /boot/initrd" >> $out/loader/entries/nixos-livecd-copytoram.conf
-    echo "options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} copytoram" >> $out/loader/entries/nixos-livecd-copytoram.conf
+    cat << EOF > $out/loader/entries/nixos-iso-copytoram.conf
+    title NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel}
+    version copytoram
+    linux /boot/bzImage
+    initrd /boot/initrd
+    options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} copytoram
+    EOF
 
-    echo "default nixos-livecd" > $out/loader/loader.conf
-    echo "timeout ${builtins.toString config.boot.loader.timeout}" >> $out/loader/loader.conf
+    # A variant to boot with verbose logging to the console
+    cat << EOF > $out/loader/entries/nixos-iso-debug.conf
+    title NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel} (debug)
+    linux /boot/bzImage
+    initrd /boot/initrd
+    options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} loglevel=7
+    EOF
+
+    cat << EOF > $out/loader/loader.conf
+    default nixos-iso
+    timeout ${builtins.toString config.boot.loader.timeout}
+    EOF
   '';
 
   efiImg = pkgs.runCommand "efi-image_eltorito" { buildInputs = [ pkgs.mtools pkgs.libfaketime ]; }
diff --git a/nixos/modules/profiles/installation-device.nix b/nixos/modules/profiles/installation-device.nix
index 8e1482f5533f..506a6ee3eaa8 100644
--- a/nixos/modules/profiles/installation-device.nix
+++ b/nixos/modules/profiles/installation-device.nix
@@ -77,7 +77,6 @@ with lib;
     # Show all debug messages from the kernel but don't log refused packets
     # because we have the firewall enabled. This makes installs from the
     # console less cumbersome if the machine has a public IP.
-    boot.consoleLogLevel = mkDefault 7;
     networking.firewall.logRefusedConnections = mkDefault false;
 
     environment.systemPackages = [ pkgs.vim ];