nixos/nixosModules/boot/silent.nix

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{ lib }:
{
/*
Lots taken from here
https://wiki.archlinux.org/title/Silent_boot
*/
environment.etc.issue = {
/*
Turns the cursor back on in the TTY
It's the output of this commmand
setterm -cursor on
*/
text = "[?12l[?25h";
mode = "0444";
};
boot = {
kernelParams = lib.mkBefore [
"fbcon=nodefer" # Wipes the vendor logo earlier
"vt.global_cursor_default=0" # Stops cursor blinking while booting
"quiet" # Less log messages
"systemd.show_status=auto" # Only show systemd errors
"udev.log_level=3" # Only show udev errors
"splash" # Show splash
];
consoleLogLevel = 3; # Only errors
initrd = {
verbose = false; # Less stage1 messages
systemd.enable = true; # Use systemd initrd
};
# Hide grub (if it's being used)
loader.grub.extraConfig = ''
GRUB_TIMEOUT_STYLE=hidden
GRUB_HIDDEN_TIMEOUT_QUIET=true
'';
/*
Not recommended
rolling back can be a pain
*/
#timeout = 0;
};
}