156 lines
4.8 KiB
Nix
156 lines
4.8 KiB
Nix
# sudo nix --experimental-features "nix-command flakes" run github:nix-community/disko/latest -- --mode disko /nixos/hosts/nixos-testbed/disko-config.nix
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# time sudo nixos-install --flake /nixos#nixos-testbed
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{ lib, ... }:
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{
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# imports = [ inputs.disko.nixosModules.disko ];
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boot.zfs.extraPools = [ "rpool" ];
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boot.zfs.devNodes = "/dev/disk/by-path";
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boot.initrd.supportedFilesystems = [ "zfs" ];
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boot.supportedFilesystems = [ "zfs" ];
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disko.devices = {
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disk = {
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broot = {
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type = "disk";
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device = "/dev/vda";
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content = {
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type = "gpt";
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partitions = {
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ESP = {
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size = "512M";
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# start = "1MiB";
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# end = "512M";
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type = "EF00";
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content = {
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type = "filesystem";
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format = "vfat";
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mountpoint = "/boot";
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mountOptions = [ "umask=0077" ];
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};
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};
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root = {
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# start = "512M";
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# end = "100%";
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size = "100%";
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content = {
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type = "zfs";
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pool = "rpool";
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};
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};
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};
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};
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};
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};
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zpool = {
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rpool = {
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type = "zpool";
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# Workaround: cannot import 'rpool': I/O error in disko tests
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# options.cachefile = "none";
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# rootFsOptions = {
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# # I don't know.
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# # https://wiki.archlinux.org/title/Systemd#systemd-tmpfiles-setup.service_fails_to_start_at_boot
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# acltype = "posixacl";
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# # atime = "off";
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# # compression = "zstd";
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# mountpoint = "none";
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# # xattr = "sa";
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# "com.sun:auto-snapshot" = "false";
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# };
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# mountpoint = "/";
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datasets =
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let dataset = options:
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let default = {
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type = "zfs_fs";
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mountOptions = [ "noauto" ];
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options = {
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"com.sun:auto-snapshot" = "false";
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};
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};
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in lib.recursiveUpdate default options;
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in
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{
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"local" = dataset {};
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"darlings" = dataset {};
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"local/root" = dataset {
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mountpoint = "/";
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postCreateHook = ''
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zfs list -t snapshot -H -o name \
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| grep -E '^rpool/local/root@blank$' \
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|| zfs snapshot rpool/local/root@blank
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'';
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};
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"local/nix" = dataset { mountpoint = "/nix"; };
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"local/home" = dataset {
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mountpoint = "/home";
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postCreateHook = ''
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zfs list -t snapshot -H -o name \
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| grep -E '^rpool/local/home@blank$' \
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|| zfs snapshot rpool/local/home@blank
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'';
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};
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"darlings/persist" = dataset { mountpoint = "/persist"; };
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"darlings/home" = dataset {
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mountpoint = "/persist/home";
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};
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"reserved" = dataset {
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mountpoint = null;
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options = {
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canmount = "off";
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mountpoint = "none";
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reservation = "5GiB";
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};
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};
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# "local" = {
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# type = "zfs_fs";
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# options.mountpoint = "none";
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# };
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# "safe" = {
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# type = "zfs_fs";
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# options.mountpoint = "none";
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# };
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# "local/root" = {
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# type = "zfs_fs";
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# options.mountpoint = "legacy";
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# mountpoint = "/";
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# options."com.sun:auto-snapshot" = "false";
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# postCreateHook = ''
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# zfs list -t snapshot -H -o name \
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# | grep -E '^rpool/local/root@blank$' \
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# || zfs snapshot rpool/local/root@blank
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# '';
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# };
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# "local/home" = {
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# };
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# "local/nix" = {
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# type = "zfs_fs";
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# options.mountpoint = "legacy";
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# mountpoint = "/nix";
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# options."com.sun:auto-snapshot" = "false";
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# };
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# "safe/persist" = {
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# type = "zfs_fs";
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# options.mountpoint = "legacy";
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# mountpoint = "/persist";
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# options."com.sun:auto-snapshot" = "false";
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# };
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# # zfs uses copy on write and requires some free space to delete files when the disk is completely filled
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# "reserved" = lib.recursiveUpdate (dataset "reserved") {
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# mountpoint = null;
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# options = {
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# canmount = "off";
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# mountpoint = "none";
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# reservation = "5GiB";
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# };
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# type = "zfs_fs";
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# };
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};
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};
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};
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};
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}
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