[Nix-dev] Nixos boot fails at stage 1 in virtualbox

[Corentin Henry]

Hi,

I am trying to install Nixos in virtualbox. I follow
insttructions from here :
https://nixos.org/wiki/Installing_NixOS_in_a_VirtualBox_guest

 $ fdisk /dev/sda ;# Create only one ext4 partition, make it bootable.
 $ mkfs.ext4 -j -L nixos /dev/sda1
 $ mount LABEL=nixos /mnt
 $ nixos-generate-config --root /mnt

/etc/configuration.nix :

{ config, pkgs, ... };
{
    imports =
        [
            ./hardware-configuration.nix
        ];

    boot.loader.grub.enable = true
    boot.loader.grub.version = 2
    boot.loader.grub.enable = "/dev/sda"
    fileSystems = [
        {
            mountPoint = "/";
            label = "nixos"
        }
    ];
}



/etc/hardware-configuration.nix :

{ config, pkgs, ... };
{
    imports =
        [<nixpkgs/nixos/modules/installer/scan/not-detected.nix>
        ];
    boot.initrd.availableKernelModules = [ "ata_piix" "ohci_pci" "ahci" ];
    boot.kernelModules = [ ];
    boot.extraModulePackages = [ ];
    swapDevices = [ ];
    nix.maxJobs = 1;
    services.virtualbox.enable = true;
}

Installation does not show any error but when rebooting :

   [fsck.ext4 (1) -- /mnt-root/] fsck.ext4 -a /dev/sda1
   nixos: recovering journal
   nixos: clean, 62800/1310720 files, 376636/5242624 blocks
   mounting /dev/sda1 on /...
   checking /dev/disk/by-label/nixos...
   fsck (busybox 1.22.1, 2014-04-20 17:51:13 UTC)
   [fsck.ext4 (1) -- /mnt-root/] fsck.ext4 -a /dev/disk/by-label/nixos
   /dev/disk/by-label/nixos is mounted
   e2fsck: Cannot continue, aborting.

   fsck on /dev/disk/by-label/nixos failed.

   An error occurred in stage 1 of the boot process, which must mount the
   root filesystem on '/mnt-root' and then start stage 2. Press one of the
   following keys:

           r) to reboot immediately
           *) to ignore the error and continue
   *
   Continuing...
   mounting /dev/disk/by-label/nixos on /...
   mount: mounting /dev/disk/by-label/nixos on /mnt-root/ failed: Device or
   resource busy

   An error occurred in stage 1 of the boot process, which must mount the
   root filesystem on '/mnt-root' and then start stage 2. Press one of the
   following keys:

           r) to reboot immediately
           *) to ignore the error and continue

Anyone could help with this, please ?
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