nixpkgs/nixos/modules/system/boot/loader/grub/memtest.nix
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00

94 lines
2.4 KiB
Nix

# 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 = ''
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 = ''
Parameters added to the Memtest86+ command line. As of memtest86+ 5.01
the following list of (apparently undocumented) parameters are
accepted:
<itemizedlist>
<listitem>
<para><literal>console=...</literal>, set up a serial console.
Examples:
<literal>console=ttyS0</literal>,
<literal>console=ttyS0,9600</literal> or
<literal>console=ttyS0,115200n8</literal>.</para>
</listitem>
<listitem>
<para><literal>btrace</literal>, enable boot trace.</para>
</listitem>
<listitem>
<para><literal>maxcpus=N</literal>, limit number of CPUs.</para>
</listitem>
<listitem>
<para><literal>onepass</literal>, run one pass and exit if there
are no errors.</para>
</listitem>
<listitem>
<para><literal>tstlist=...</literal>, list of tests to run.
Example: <literal>0,1,2</literal>.</para>
</listitem>
<listitem>
<para><literal>cpumask=...</literal>, set a CPU mask, to select CPUs
to use for testing.</para>
</listitem>
</itemizedlist>
This list of command line options was obtained by reading the
Memtest86+ source code.
'';
};
};
};
config = mkIf cfg.enable {
boot.loader.grub.extraEntries =
if config.boot.loader.grub.version == 2 then
''
menuentry "Memtest86+" {
linux16 @bootRoot@/memtest.bin ${toString cfg.params}
}
''
else
throw "Memtest86+ is not supported with GRUB 1.";
boot.loader.grub.extraFiles."memtest.bin" = "${memtest86}/memtest.bin";
};
}