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# This module adds Memtest86+ to the GRUB boot menu.
{ config, lib, pkgs, ... }:
with lib;
let
memtest86 = pkgs.memtest86plus;
cfg = config.boot.loader.grub.memtest86;
in
{
options = {
boot.loader.grub.memtest86 = {
enable = mkOption {
default = false;
type = types.bool;
description = lib.mdDoc ''
Make Memtest86+, a memory testing program, available from the GRUB
boot menu.
'';
};
params = mkOption {
default = [];
example = [ "console=ttyS0,115200" ];
type = types.listOf types.str;
description = lib.mdDoc ''
Parameters added to the Memtest86+ command line. As of memtest86+ 5.01
the following list of (apparently undocumented) parameters are
accepted:
- `console=...`, set up a serial console.
Examples:
`console=ttyS0`,
`console=ttyS0,9600` or
`console=ttyS0,115200n8`.
- `btrace`, enable boot trace.
- `maxcpus=N`, limit number of CPUs.
- `onepass`, run one pass and exit if there
are no errors.
- `tstlist=...`, list of tests to run.
Example: `0,1,2`.
- `cpumask=...`, set a CPU mask, to select CPUs
to use for testing.
This list of command line options was obtained by reading the
Memtest86+ source code.
'';
};
};
};
config = mkIf cfg.enable {
boot.loader.grub.extraEntries = ''
menuentry "Memtest86+" {
linux @bootRoot@/memtest.bin ${toString cfg.params}
}
'';
boot.loader.grub.extraFiles."memtest.bin" = "${memtest86}/memtest.bin";
};
}
|