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grub: Do not check for duplicated devices in mirroredBoots on UEFI (#18625)

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When Grub is to be used with UEFI, it is not going to write to any MBR
of any disk. As such, it is safe to use multiple "nodev" device entries
when mirroring the ESP partition to multiple disks.

E.g.:

```
boot.loader.grub = {
  enable = true;
  version = 2;
  zfsSupport = true;
  efiSupport = true;
  mirroredBoots = [
    { devices = [ "nodev" ]; path = "/boot1"; efiSysMountPoint = "/boot1"; }
    { devices = [ "nodev" ]; path = "/boot2"; efiSysMountPoint = "/boot2"; }
    { devices = [ "nodev" ]; path = "/boot3"; efiSysMountPoint = "/boot3"; }
  ];
};

boot.loader.efi.canTouchEfiVariables = true;
```

Fixes #18584
This commit is contained in:
jokogr 2016-09-25 08:37:18 +03:00 committed by Franz Pletz
parent 60f31c6077
commit b12debc076
1 changed files with 1 additions and 1 deletions
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2
nixos/modules/system/boot/loader/grub/grub.nix
View file

@ -503,7 +503,7 @@ in
+ "'boot.loader.grub.mirroredBoots' to make the system bootable.";
}
{
assertion = all (c: c < 2) (mapAttrsToList (_: c: c) bootDeviceCounters);
assertion = cfg.efiSupport || all (c: c < 2) (mapAttrsToList (_: c: c) bootDeviceCounters);
message = "You cannot have duplicated devices in mirroredBoots";
}
{