mirror of
https://codeberg.org/privacy1st/nixos-anywhere-example
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72 lines
2.3 KiB
Markdown
72 lines
2.3 KiB
Markdown
# nixos-anywhere and disko
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This is an example repository for nixos-anywhere and disko.
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Inspiration:
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* Introductory presentation: https://pad.lassul.us/cccamp-workshop
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* https://github.com/numtide/nixos-anywhere-examples
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Manuals:
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* disko reference: https://github.com/nix-community/disko/blob/master/docs/reference.md
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* nixos-anywhere reference: https://github.com/nix-community/nixos-anywhere/blob/main/docs/reference.md
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## Build installer ISO with passwordless SSH
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```shell
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nix-build '<nixpkgs/nixos>' -A config.system.build.isoImage -I nixos-config=iso.nix
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# aarch64 ISO (requires emulation)
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#nix-build '<nixpkgs/nixos>' -A config.system.build.isoImage -I nixos-config=iso.nix --argstr system aarch64-linux
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ls result/iso/*.iso
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```
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## Hardware Configuration
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Boot the target machine into NixOS live ISO. Then execute the following, ideally while connected via SSH:
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```shell
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nixos-generate-config --no-filesystems --root /mnt
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cat /mnt/etc/nixos/hardware-configuration.nix
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```
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Save the output to a new file in [./hardware-configs/](./hardware-configs/). In [./flake.nix](./flake.nix) replace `./hardware-configs/yodaHP.nix` with it.
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Note: The hardware configuration should not contain any `fileSystems.<name>` options as these are generated based on your disko configuration.
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## Installation
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To run the interactive vm test run:
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```shell
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nix --extra-experimental-features nix-command --extra-experimental-features flakes \
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run github:numtide/nixos-anywhere -- -f '.#mysystem' --vm-test
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```
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To install on remote target machine:
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```shell
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# yodaHP
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nix --extra-experimental-features nix-command --extra-experimental-features flakes \
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run github:numtide/nixos-anywhere -- --flake '.#mysystem' -p 22 root@192.168.178.106
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```
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To install on remote target machine **and** print the SSH fingerprint of the new system. If no encrypted disks are set up, the disk password can be left empty:
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```shell
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# yodaHP
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./install-helper.sh 22 root@192.168.178.106
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```
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## Updating dependencies
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Recreate the lock file (i.e. update all inputs) and commit the new lock file:
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```shell
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nix --extra-experimental-features nix-command --extra-experimental-features flakes \
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flake update --commit-lock-file
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```
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## TODOs
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- Hetzner Cloud example: https://github.com/numtide/nixos-anywhere-examples/blob/main/flake.nix
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