make-disk-image.nix: cannot initialize fsdev 'sa' #359782
Description
Describe the bug
Hi,
consider the following files:
flake.nix
{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
};
outputs = { nixpkgs, ... }@attrs:
let
system = "x86_64-linux";
in {
nixosConfigurations = {
qcow2 = nixpkgs.lib.nixosSystem {
inherit system;
modules = [ ./qcow2.nix ];
};
};
};
}qcow2.nix
{
config,
lib,
pkgs,
modulesPath,
...
}:
{
imports = [ "${modulesPath}/profiles/qemu-guest.nix" ];
boot = {
loader.systemd-boot.enable = true;
kernelPackages = pkgs.linuxPackages_6_11;
};
# These labels are set/expected by `make-disk-image.nix`
fileSystems = {
"/boot" = {
device = "/dev/disk/by-label/ESP";
fsType = "vfat";
};
"/" = {
device = "/dev/disk/by-label/nixos";
fsType = "ext4";
autoResize = true;
};
};
system.build.qcow2 = import "${modulesPath}/../lib/make-disk-image.nix" {
inherit config lib pkgs;
diskSize = 20480;
format = "qcow2-compressed";
partitionTableType = "efi";
copyChannel = false;
};
}after updating to the latest nixos-unstable:
flake.lock
{
"nodes": {
"nixpkgs": {
"locked": {
"lastModified": 1732521221,
"narHash": "sha256-2ThgXBUXAE1oFsVATK1ZX9IjPcS4nKFOAjhPNKuiMn0=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "4633a7c72337ea8fd23a4f2ba3972865e3ec685d",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"nixpkgs": "nixpkgs"
}
}
},
"root": "root",
"version": 7
}If I run:
nix build .#nixosConfigurations.qcow2.config.system.build.qcow2 --print-build-logsI get the following error:
nixos-disk-image> WARNING: Image format was not specified for 'nixos.raw' and probing guessed raw.
nixos-disk-image> Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
nixos-disk-image> Specify the 'raw' format explicitly to remove the restrictions.
nixos-disk-image> qemu-kvm: -virtfs local,path=/build,security_model=none,mount_tag=sa: cannot initialize fsdev 'sa': failed to open '/build': No such file or directory
error: builder for '/nix/store/nyvlsqnawm657ddfz9kswgxdylvkk8lr-nixos-disk-image.drv' failed with exit code 1If I revert to nixos-unstable:
flake.lock
{
"nodes": {
"nixpkgs": {
"locked": {
"lastModified": 1732014248,
"narHash": "sha256-y/MEyuJ5oBWrWAic/14LaIr/u5E0wRVzyYsouYY3W6w=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "23e89b7da85c3640bbc2173fe04f4bd114342367",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"nixpkgs": "nixpkgs"
}
}
},
"root": "root",
"version": 7
}It works as expected:
nixos-disk-image> WARNING: Image format was not specified for 'nixos.raw' and probing guessed raw.
nixos-disk-image> Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
nixos-disk-image> Specify the 'raw' format explicitly to remove the restrictions.
nixos-disk-image> cSeaBIOS (version rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org)
nixos-disk-image> iPXE (http://ipxe.org) 00:03.0 CA00 PCI2.10 PnP PMM+3EFD0CF0+3EF30CF0 CA00
nixos-disk-image> Booting from ROM...
nixos-disk-image> Probing EDD (edd=off to disable)... ocloading kernel modules...
nixos-disk-image> mounting Nix store...
nixos-disk-image> mounting host's temporary directory...
nixos-disk-image> starting stage 2 (/nix/store/mslzxrnwm7hmykqkrryyq0nj4rk45845-vm-run-stage2)
nixos-disk-image> tune2fs 1.47.1 (20-May-2024)
nixos-disk-image> Setting maximal mount count to -1
nixos-disk-image> Setting interval between checks to 0 seconds
nixos-disk-image> Setting time filesystem last checked to Thu Nov 28 08:10:35 2024
nixos-disk-image> mkfs.fat 4.2 (2021-01-31)
nixos-disk-image> setting up /etc...
nixos-disk-image> Initializing machine ID from random generator.
nixos-disk-image> Created "/boot/EFI".
nixos-disk-image> Created "/boot/EFI/systemd".
nixos-disk-image> Created "/boot/EFI/BOOT".
nixos-disk-image> Created "/boot/loader".
nixos-disk-image> Created "/boot/loader/entries".
nixos-disk-image> Created "/boot/EFI/Linux".
nixos-disk-image> Copied "/nix/store/ivqjhj99firnjq7gp14qf35821viwi5m-systemd-256.7/lib/systemd/boot/efi/systemd-bootx64.efi" to "/boot/EFI/systemd/systemd-bootx64.efi".
nixos-disk-image> Copied "/nix/store/ivqjhj99firnjq7gp14qf35821viwi5m-systemd-256.7/lib/systemd/boot/efi/systemd-bootx64.efi" to "/boot/EFI/BOOT/BOOTX64.EFI".
nixos-disk-image> ⚠️ Mount point '/boot' which backs the random seed file is world accessible, which is a security hole! ⚠️
nixos-disk-image> ⚠️ Random seed file '/boot/loader/.#bootctlrandom-seed3eccc68721bd85ee' is world accessible, which is a security hole! ⚠️
nixos-disk-image> Random seed file /boot/loader/random-seed successfully written (32 bytes).
nixos-disk-image> tune2fs 1.47.1 (20-May-2024)
nixos-disk-image> Setting maximal mount count to -1
nixos-disk-image> Setting interval between checks to 0 seconds
nixos-disk-image> Setting time filesystem last checked to Thu Nov 28 08:10:36 2024
nixos-disk-image> tune2fs 1.47.1 (20-May-2024)
nixos-disk-image> Setting time filesystem last checked to Thu Jan 1 00:00:00 1970
nixos-disk-image> [ 2.623511] reboot: Power downMetadata
$ nix-shell -p nix-info --run "nix-info -m"
- system: `"x86_64-linux"`
- host os: `Linux 6.11.9`
- multi-user?: `yes`
- sandbox: `no`
- version: `nix-env (Nix) 2.25.2`
- channels(root): `""`
- nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixpkgs`Notify maintainers
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