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grub module: fix useOSProber when installing grub as EFI

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This commit is contained in:
Symphorien Gibol 2017-03-22 15:40:22 +01:00 committed by Robin Gloster
parent 29a2978fdf
commit a6665adde8
1 changed files with 32 additions and 30 deletions
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62
nixos/modules/system/boot/loader/grub/install-grub.pl
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@ -443,9 +443,40 @@ my $confFile = $grubVersion == 1 ? "$bootPath/grub/menu.lst" : "$bootPath/grub/g
my $tmpFile = $confFile . ".tmp";
writeFile($tmpFile, $conf);
# check whether to install GRUB EFI or not
sub getEfiTarget {
if ($grubVersion == 1) {
return "no"
} elsif (($grub ne "") && ($grubEfi ne "")) {
# EFI can only be installed when target is set;
# A target is also required then for non-EFI grub
if (($grubTarget eq "") || ($grubTargetEfi eq "")) { die }
else { return "both" }
} elsif (($grub ne "") && ($grubEfi eq "")) {
# TODO: It would be safer to disallow non-EFI grub installation if no taget is given.
# If no target is given, then grub auto-detects the target which can lead to errors.
# E.g. it seems as if grub would auto-detect a EFI target based on the availability
# of a EFI partition.
# However, it seems as auto-detection is currently relied on for non-x86_64 and non-i386
# architectures in NixOS. That would have to be fixed in the nixos modules first.
return "no"
} elsif (($grub eq "") && ($grubEfi ne "")) {
# EFI can only be installed when target is set;
if ($grubTargetEfi eq "") { die }
else {return "only" }
} else {
# prevent an installation if neither grub nor grubEfi is given
return "neither"
}
}
my $efiTarget = getEfiTarget();
# Append entries detected by os-prober
if (get("useOSProber") eq "true") {
system(get("shell"), "-c", "pkgdatadir=$grub/share/grub $grub/etc/grub.d/30_os-prober >> $tmpFile");
my $targetpackage = ($efiTarget eq "no") ? $grub : $grubEfi;
system(get("shell"), "-c", "pkgdatadir=$targetpackage/share/grub $targetpackage/etc/grub.d/30_os-prober >> $tmpFile");
}
# Atomically switch to the new config
@ -498,36 +529,7 @@ sub getDeviceTargets {
}
return @devices;
}
# check whether to install GRUB EFI or not
sub getEfiTarget {
if ($grubVersion == 1) {
return "no"
} elsif (($grub ne "") && ($grubEfi ne "")) {
# EFI can only be installed when target is set;
# A target is also required then for non-EFI grub
if (($grubTarget eq "") || ($grubTargetEfi eq "")) { die }
else { return "both" }
} elsif (($grub ne "") && ($grubEfi eq "")) {
# TODO: It would be safer to disallow non-EFI grub installation if no taget is given.
# If no target is given, then grub auto-detects the target which can lead to errors.
# E.g. it seems as if grub would auto-detect a EFI target based on the availability
# of a EFI partition.
# However, it seems as auto-detection is currently relied on for non-x86_64 and non-i386
# architectures in NixOS. That would have to be fixed in the nixos modules first.
return "no"
} elsif (($grub eq "") && ($grubEfi ne "")) {
# EFI can only be installed when target is set;
if ($grubTargetEfi eq "") { die }
else {return "only" }
} else {
# prevent an installation if neither grub nor grubEfi is given
return "neither"
}
}
my @deviceTargets = getDeviceTargets();
my $efiTarget = getEfiTarget();
my $prevGrubState = readGrubState();
my @prevDeviceTargets = split/,/, $prevGrubState->devices;