Get a Nix shell with flakes support:
nix-shell -p nixFlakes
[nix-shell:~/systems]$ sudo gdisk /dev/nvme1n1
GPT fdisk (gdisk) version 1.0.7
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Command (? for help): o
This option deletes all partitions and creates a new protective MBR.
Proceed? (Y/N): Y
Command (? for help): n
Partition number (1-128, default 1):
First sector (34-1953525134, default = 2048) or {+-}size{KMGTP}: +1024M
Last sector (2099200-1953525134, default = 1953525134) or {+-}size{KMGTP}: +1024M
Current type is 8300 (Linux filesystem)
Hex code or GUID (L to show codes, Enter = 8300): ef00
Changed type of partition to 'EFI system partition'
Command (? for help): n
Partition number (2-128, default 2):
First sector (34-1953525134, default = 4196352) or {+-}size{KMGTP}: +16GB
Last sector (37750784-1953525134, default = 1953525134) or {+-}size{KMGTP}: +16GB
Current type is 8300 (Linux filesystem)
Hex code or GUID (L to show codes, Enter = 8300): 8200
Changed type of partition to 'Linux swap'
Command (? for help): n
Partition number (3-128, default 3):
First sector (34-1953525134, default = 71305216) or {+-}size{KMGTP}:
Last sector (71305216-1953525134, default = 1953525134) or {+-}size{KMGTP}:
Current type is 8300 (Linux filesystem)
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): p
Disk /dev/nvme1n1: 1953525168 sectors, 931.5 GiB
Model: WDC WDS100T2B0C-00PXH0
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): C414FC0B-2D9F-4461-8D68-212FE5A0EAEE
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 35653598 sectors (17.0 GiB)
Number Start (sector) End (sector) Size Code Name
1 2099200 4196351 1024.0 MiB EF00 EFI system partition
2 37750784 71305215 16.0 GiB 8200 Linux swap
3 71305216 1953525134 897.5 GiB 8300 Linux filesystem
Command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
Do you want to proceed? (Y/N): Y
OK; writing new GUID partition table (GPT) to /dev/nvme1n1.
The operation has completed successfully.
[nix-shell:~/systems]$ sudo cryptsetup --verify-passphrase -v luksFormat --type luks1 /dev/nvme1n1p3
WARNING!
========
This will overwrite data on /dev/nvme1n1p3 irrevocably.
Are you sure? (Type 'yes' in capital letters): YES
Enter passphrase for /dev/nvme1n1p3:
Verify passphrase:
Key slot 0 created.
Command successful.
[nix-shell:~/systems]$ sudo cryptsetup open /dev/nvme1n1p3 nixos
Enter passphrase for /dev/nvme1n1p3:
[nix-shell:~/systems]$ sudo mkfs.vfat -n boot /dev/nvme1n1p1
mkfs.fat 4.1 (2017-01-24)
mkfs.fat: warning - lowercase labels might not work properly with DOS or Windows
[nix-shell:~/systems]$ sudo mkfs.btrfs /dev/mapper/nixos
btrfs-progs v5.11.1
See http://btrfs.wiki.kernel.org for more information.
Detected a SSD, turning off metadata duplication. Mkfs with -m dup if you want to force metadata duplication.
Label: (null)
UUID: 6b9bbe6c-408b-4fa2-9a9b-dcd836b1d645
Node size: 16384
Sector size: 4096
Filesystem size: 897.51GiB
Block group profiles:
Data: single 8.00MiB
Metadata: single 8.00MiB
System: single 4.00MiB
SSD detected: yes
Incompat features: extref, skinny-metadata
Runtime features:
Checksum: crc32c
Number of devices: 1
Devices:
ID SIZE PATH
1 897.51GiB /dev/mapper/nixos
[nix-shell:~/systems]$ sudo mkswap /dev/nvme1n1p2
Setting up swapspace version 1, size = 16 GiB (17179865088 bytes)
no label, UUID=79476089-be84-4878-ab1f-11977f82a63c
[nix-shell:~/systems]$ sudo swapon /dev/nvme1n1p2
[nix-shell:~/systems]$ sudo mount -t btrfs /dev/mapper/nixos /mnt
[nix-shell:~/systems]$ sudo btrfs subvolume create /mnt/nixos
Create subvolume '/mnt/nixos'
[nix-shell:~/systems]$ sudo btrfs subvolume create /mnt/home
Create subvolume '/mnt/home'
[nix-shell:~/systems]$ sudo btrfs subvolume snapshot -r /mnt/nixos /mnt/nixos-blank
Create a readonly snapshot of '/mnt/nixos' in '/mnt/nixos-blank'
[nix-shell:~/systems]$ sudo umount /mnt
[nix-shell:~/systems]$ sudo mkdir /mnt/home
[nix-shell:~/systems]$ sudo mkdir -p /mnt/boot/efi
[nix-shell:~/systems]$ sudo mount -o subvol=nixos,compress=zstd,noatime /dev/mapper/nixos /mnt
[nix-shell:~/systems]$ sudo mount -o subvol=home,compress=zstd,noatime /dev/mapper/nixos /mnt/home
[nix-shell:~/systems]$ sudo mount /dev/nvme1n1p1 /mnt/boot/efi
[nix-shell:~/systems]$ sudo nixos-generate-config --root /mnt
The generated hardware config will not have detected the required BTRFS mount options, so we need to add these manually. For example, change
fileSystems."/" =
{ device = "/dev/disk/by-uuid/6b9bbe6c-408b-4fa2-9a9b-dcd836b1d645";
fsType = "btrfs";
options = [ "subvol=nixos" ];
};
to
fileSystems."/" =
{ device = "/dev/disk/by-uuid/6b9bbe6c-408b-4fa2-9a9b-dcd836b1d645";
fsType = "btrfs";
options = [ "subvol=nixos" "compress=zstd" "noatime" ];
};
[nix-shell:~/systems]$ nix --experimental-features 'nix-command flakes' build .#nixosConfigurations.yokohama.config.system.build.toplevel
[nix-shell:~/systems]$ sudo nixos-install --system ./result --root /mnt
- Currently, one annoying issue is that, because no channels were added,
command-not-founddoes not work for reasons that I cannot comprehend. See: https://discourse.nixos.org/t/command-not-found-unable-to-open-database/3807 - If too many packages are configured, building the entire system on a small live USB stick may fail