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grub bootloader: add forceInstall option

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Using the --force option on GRUB isn't recommended, but there are very
specific instances where it makes sense. One example is installing on a
partitionless disk.
This commit is contained in:
Andrew R. M 2016-10-08 23:59:42 -04:00
parent 26256b7cea
commit a31bf8961a
2 changed files with 22 additions and 7 deletions
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12
nixos/modules/system/boot/loader/grub/grub.nix
View file

@ -53,7 +53,7 @@ let
inherit (args) devices;
inherit (efi) canTouchEfiVariables;
inherit (cfg)
version extraConfig extraPerEntryConfig extraEntries
version extraConfig extraPerEntryConfig extraEntries forceInstall
extraEntriesBeforeNixOS extraPrepareConfig configurationLimit copyKernels
default fsIdentifier efiSupport efiInstallAsRemovable gfxmodeEfi gfxmodeBios;
path = (makeBinPath ([
@ -404,6 +404,16 @@ in
'';
};
forceInstall = mkOption {
default = false;
type = types.bool;
description = ''
Whether to try and forcibly install GRUB even if problems are
detected. It is not recommended to enable this unless you know what
you are doing.
'';
};
trustedBoot = {
enable = mkOption {

17
nixos/modules/system/boot/loader/grub/install-grub.pl
View file

@ -65,6 +65,7 @@ my $efiSysMountPoint = get("efiSysMountPoint");
my $gfxmodeEfi = get("gfxmodeEfi");
my $gfxmodeBios = get("gfxmodeBios");
my $bootloaderId = get("bootloaderId");
my $forceInstall = get("forceInstall");
$ENV{'PATH'} = get("path");
die "unsupported GRUB version\n" if $grubVersion != 1 && $grubVersion != 2;
@ -531,13 +532,14 @@ if (($requireNewInstall != 0) && ($efiTarget eq "no" || $efiTarget eq "both")) {
foreach my $dev (@deviceTargets) {
next if $dev eq "nodev";
print STDERR "installing the GRUB $grubVersion boot loader on $dev...\n";
if ($grubTarget eq "") {
system("$grub/sbin/grub-install", "--recheck", "--root-directory=$tmpDir", Cwd::abs_path($dev)) == 0
or die "$0: installation of GRUB on $dev failed\n";
} else {
system("$grub/sbin/grub-install", "--recheck", "--root-directory=$tmpDir", "--target=$grubTarget", Cwd::abs_path($dev)) == 0
or die "$0: installation of GRUB on $dev failed\n";
my @command = ("$grub/sbin/grub-install", "--recheck", "--root-directory=$tmpDir", Cwd::abs_path($dev));
if ($forceInstall eq "true") {
push @command, "--force";
}
if ($grubTarget ne "") {
push @command, "--target=$grubTarget";
}
(system @command) == 0 or die "$0: installation of GRUB on $dev failed\n";
}
}
@ -546,6 +548,9 @@ if (($requireNewInstall != 0) && ($efiTarget eq "no" || $efiTarget eq "both")) {
if (($requireNewInstall != 0) && ($efiTarget eq "only" || $efiTarget eq "both")) {
print STDERR "installing the GRUB $grubVersion EFI boot loader into $efiSysMountPoint...\n";
my @command = ("$grubEfi/sbin/grub-install", "--recheck", "--target=$grubTargetEfi", "--boot-directory=$bootPath", "--efi-directory=$efiSysMountPoint");
if ($forceInstall eq "true") {
push @command, "--force";
}
if ($canTouchEfiVariables eq "true") {
push @command, "--bootloader-id=$bootloaderId";
} else {