В мане инсталятора - It copies Nix and its dependencies to /mnt/nix/store. Это где-то в tmpfs. установщик собирает не в свапе, а где-то в другом месте), в этом и затык, как его пнуть в свап?
Я подключился по ssh попробовал заново все, вот логи что сыпяться.
nixos-install building the configuration in /mnt/etc/nixos/configuration.nix... waiting for locks or build slots... builder for '/nix/store/zbcrrf87idbp2r3cpkigaylkvay1aga0-cpupower-4.19.113.drv' failed with exit code 1; last 10 log lines: tar: linux-4.19.113/virt/kvm/eventfd.c: Cannot write: No space left on device tar: linux-4.19.113/virt/kvm/irqchip.c: Cannot write: No space left on device tar: linux-4.19.113/virt/kvm/kvm_main.c: Cannot write: No space left on device tar: linux-4.19.113/virt/kvm/vfio.c: Cannot write: No space left on device tar: linux-4.19.113/virt/kvm/vfio.h: Cannot write: No space left on device tar: linux-4.19.113/virt/lib/Kconfig: Cannot write: No space left on device tar: linux-4.19.113/virt/lib/Makefile: Cannot write: No space left on device tar: linux-4.19.113/virt/lib/irqbypass.c: Cannot write: No space left on device tar: Exiting with failure status due to previous errors do not know how to unpack source archive /nix/store/rj2hahfy3nfp35zv8lwmlr3j7rr6rrrx-linux-4.19.113.tar.xz note: build failure may have been caused by lack of free disk space cannot build derivation '/nix/store/9jyl13856h4v7m78mgxqabjvs8zw1qnc-system-path.drv': 1 dependencies couldn't be built cannot build derivation '/nix/store/2lgsr3w1hikksg7q7bik36amb2iaazk8-unit-cpufreq.service.drv': 1 dependencies couldn't be built cannot build derivation '/nix/store/m9644jn5265hsc93hnvc3y70ckmz2vjx-nixos-system-nixos-19.09.2342.c7363c2b97e.drv': 1 dependencies couldn't be built [11 built (1 failed), 653 copied (2528.3 MiB), 354.9 MiB DL] error: build of '/nix/store/m9644jn5265hsc93hnvc3y70ckmz2vjx-nixos-system-nixos-19.09.2342.c7363c2b97e.drv' failed
Почему оно пытается собрать ядро? Чо у тебя там в конфиге творится