virtualisation.useDefaultFilesystems
NixOS option
If enabled, the boot disk of the virtual machine will be formatted and mounted with the default filesystems for testing. Swap devices and LUKS will be disabled. If disabled, a root filesystem has to be specified and formatted (for example in the initial ramdisk).
type: booleanDefault
declared in: nixos/modules/virtualisation/qemu-vm.nixView source on NixOS/nixpkgs →true