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Merge pull request #61036 from cdepillabout/nixos-memtest-loader

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nixos/systemd-boot: add support for memtest86 EFI app
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Matthew Bauer 2019-05-20 21:42:40 -05:00 committed by GitHub
commit 022d8ab861
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2 changed files with 42 additions and 0 deletions
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27
nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py
View File

@ -33,6 +33,15 @@ initrd {initrd}
options {kernel_params}
"""
# The boot loader entry for memtest86.
#
# TODO: This is hard-coded to use the 64-bit EFI app, but it could probably
# be updated to use the 32-bit EFI app on 32-bit systems. The 32-bit EFI
# app filename is BOOTIA32.efi.
MEMTEST_BOOT_ENTRY = """title MemTest86
efi /efi/memtest86/BOOTX64.efi
"""
def write_loader_conf(profile, generation):
with open("@efiSysMountPoint@/loader/loader.conf.tmp", 'w') as f:
if "@timeout@" != "":
@ -199,6 +208,24 @@ def main():
if os.readlink(system_dir(*gen)) == args.default_config:
write_loader_conf(*gen)
memtest_entry_file = "@efiSysMountPoint@/loader/entries/memtest86.conf"
if os.path.exists(memtest_entry_file):
os.unlink(memtest_entry_file)
shutil.rmtree("@efiSysMountPoint@/efi/memtest86", ignore_errors=True)
if "@memtest86@" != "":
mkdir_p("@efiSysMountPoint@/efi/memtest86")
for path in glob.iglob("@memtest86@/*"):
if os.path.isdir(path):
shutil.copytree(path, os.path.join("@efiSysMountPoint@/efi/memtest86", os.path.basename(path)))
else:
shutil.copy(path, "@efiSysMountPoint@/efi/memtest86/")
memtest_entry_file = "@efiSysMountPoint@/loader/entries/memtest86.conf"
memtest_entry_file_tmp_path = "%s.tmp" % memtest_entry_file
with open(memtest_entry_file_tmp_path, 'w') as f:
f.write(MEMTEST_BOOT_ENTRY)
os.rename(memtest_entry_file_tmp_path, memtest_entry_file)
# Since fat32 provides little recovery facilities after a crash,
# it can leave the system in an unbootable state, when a crash/outage
# happens shortly after an update. To decrease the likelihood of this

15
nixos/modules/system/boot/loader/systemd-boot/systemd-boot.nix
View File

@ -25,6 +25,8 @@ let
inherit (cfg) consoleMode;
inherit (efi) efiSysMountPoint canTouchEfiVariables;
memtest86 = if cfg.memtest86.enable then pkgs.memtest86-efi else "";
};
in {
@ -85,6 +87,19 @@ in {
</itemizedlist>
'';
};
memtest86 = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Make MemTest86 available from the systemd-boot menu. MemTest86 is a
program for testing memory. MemTest86 is an unfree program, so
this requires <literal>allowUnfree</literal> to be set to
<literal>true</literal>.
'';
};
};
};
config = mkIf cfg.enable {