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LUKS memory option; keyboard layout; docs

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This commit is contained in:
Daniel Langbein 2023-11-03 12:59:04 +01:00
parent 65468de8dc
commit 7b2cbe33bb
Signed by: langfingaz
GPG Key ID: 6C47C753F0823002
3 changed files with 25 additions and 4 deletions
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10
template/README.md
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@ -22,7 +22,7 @@ ls result/iso/*.iso
## Hardware Configuration ## Hardware Configuration
Boot the target machine into NixOS live ISO. Then execute the following, ideally while connected via SSH: Boot the target machine into NixOS live ISO. Then execute the following, ideally while connected as root via SSH:
```shell ```shell
nixos-generate-config --no-filesystems --root /mnt nixos-generate-config --no-filesystems --root /mnt
@ -33,6 +33,14 @@ Save the output to a new file in [./hardware-configs/](./hardware-configs/). In
Note: The hardware configuration should not contain any `fileSystems.<name>` options as these are generated based on your disko configuration. Note: The hardware configuration should not contain any `fileSystems.<name>` options as these are generated based on your disko configuration.
---
Furthermore, in [./flake.nix](./flake.nix) replace `disko.devices.disk.disk1.device` with the id of your target block device.
---
Lastly, in [./flake.nix](./flake.nix) replace `pbkdf-memory` with your amount of RAM - 500 MB.
## Installation ## Installation
To run the interactive vm test run: To run the interactive vm test run:

4
template/disk-configs/luks-btrfs.nix
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@ -8,7 +8,7 @@
# https://man.archlinux.org/man/cryptsetup-luksOpen.8.en # https://man.archlinux.org/man/cryptsetup-luksOpen.8.en
# Can make filesystem-level operations visible on the physical device. For example, information leaking filesystem type, used space, etc. may be extractable from the physical device. # Can make filesystem-level operations visible on the physical device. For example, information leaking filesystem type, used space, etc. may be extractable from the physical device.
{ lib, ... }: { { pbkdf-memory, ... }: { lib, ... }: {
disko.devices.disk = { disko.devices.disk = {
"disk1" = { "disk1" = {
type = "disk"; type = "disk";
@ -40,7 +40,7 @@
# - 5 seconds to open # - 5 seconds to open
extraFormatArgs = [ extraFormatArgs = [
"--cipher" "aes-xts-plain64" "--key-size" "512" "--hash" "sha512" "--cipher" "aes-xts-plain64" "--key-size" "512" "--hash" "sha512"
"--pbkdf-memory" "4000000" "--iter-time" "5000" "--use-random" "--pbkdf-memory" pbkdf-memory "--iter-time" "5000" "--use-random"
]; ];
extraOpenArgs = [ "--allow-discards" ]; extraOpenArgs = [ "--allow-discards" ];
# If you want to use the key for interactive login be sure there is no trailing newline. # If you want to use the key for interactive login be sure there is no trailing newline.

15
template/flake.nix
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@ -25,9 +25,20 @@
./hardware-configs/yodaHP.nix ./hardware-configs/yodaHP.nix
# Select disko disk layout configuration. # Select disko disk layout configuration.
#
# The way we import the luks-btrfs disk layout and pass an argument is not ideal,
# but keeps this config file shorter. A batter way is to expose options:
# https://discourse.nixos.org/t/passing-parameters-into-import/34082/4
#
#./disk-configs/simple-efi.nix #./disk-configs/simple-efi.nix
./disk-configs/luks-btrfs.nix
#./disk-configs/luks-lvm.nix #./disk-configs/luks-lvm.nix
(import ./disk-configs/luks-btrfs.nix {
# Memory in bytes required to unlock the LUKS partition while booting.
# The default value is 1 GB (1000000).
# Set this as high as possible, but leave some buffer (e.g. 500 MB).
# Example: If you have 4 GB memory, set this to 3500000.
pbkdf-memory = 4000000;
})
# Change device name match your block device. # Change device name match your block device.
# Running `lsblk` on the target machine can help you here. # Running `lsblk` on the target machine can help you here.
@ -53,6 +64,8 @@
(builtins.readFile ./nitrokey.pub) (builtins.readFile ./nitrokey.pub)
]; ];
console.keyMap = "de-latin1-nodeadkeys";
system.stateVersion = "23.05"; system.stateVersion = "23.05";
} }
]; ];