[Nix-dev] nixos-rebuild build-vm: Can't find /dev/sda2

[phreedom at yandex.ru]

On Понедельник 13 мая 2013 18:04:39 Moritz Ulrich wrote:
> I'm a happy NixOS user on a Thinkpad x230. It's lvm-on-luks, with
> /boot on /dev/sda1 ("x230-boot") and a luks-volume on /dev/sda2
> ("luksroot"). Different lvm volumes get mounted via labels on / and
> /home:
> 
> boot.luks = {
>   enable = true;
>   devices = [
>     {name = "luksroot";
>      device = "/dev/sda2";
>      allowDiscards = true;
>    }];
> };
> 
> fileSystems."/".label = "x230-root";
> fileSystems."/boot".label = "x230-boot";
> fileSystems."/home".label = "x230-home";
> fileSystems."/tmp" = { device = "tmpfs"; fsType = "tmpfs"; };
> 
> Everything works fine when running on bare metal, starting a virtual
> machine built via `nixos-rebuild build-vm' stops while booting:
> 
> Device /dev/sda2 doesn't exist or access denied.
> starting device mapper and LVM
>   No Volume groups found
> failed to resume

build-vm doesn't replicate your lvm setup and that's why it breaks. I'm afraid 
you have to disable luks for the test. I don't remember if it overrides 
filesystems in a sane way.