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nixos-system-config/hosts/x220/hardware-configuration.nix

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{ config, lib, modulesPath, ... }:
{
imports = [
(modulesPath + "/installer/scan/not-detected.nix")
];
fileSystems."/" = {
device = "/dev/disk/by-uuid/e0b531cf-b575-4579-b866-9b7265e01b0a";
fsType = "btrfs";
options = [ "subvol=root" "compress=zstd" "noatime" "ssd" ];
};
fileSystems."/nix" = {
device = "/dev/disk/by-uuid/e0b531cf-b575-4579-b866-9b7265e01b0a";
fsType = "btrfs";
options = [ "subvol=nix" "compress=zstd" "noatime" "ssd" ];
neededForBoot = true;
};
fileSystems."/boot" = {
device = "/dev/disk/by-uuid/bfe6e556-44e9-427f-9ae6-eddae6c62298";
fsType = "ext4";
};
boot.initrd.luks.devices."vg".device = "/dev/disk/by-uuid/92b4f484-2c00-47e7-baf6-9f396883e231";
boot.initrd.availableKernelModules = [
"ehci_pci" "ahci" "xhci_pci" "usb_storage" "sd_mod" "sdhci_pci"
];
boot.kernelModules = [ "kvm-intel" ];
boot.initrd.postDeviceCommands = lib.mkAfter ''
mkdir /btrfs_tmp
mount ${config.fileSystems."/".device} /btrfs_tmp
if [[ -e /btrfs_tmp/root ]]; then
mkdir -p /btrfs_tmp/old_roots
timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
fi
delete_subvolume_recursively() {
IFS=$'\n'
for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
delete_subvolume_recursively "/btrfs_tmp/$i"
done
btrfs subvolume delete "$1"
}
for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
delete_subvolume_recursively "$i"
done
btrfs subvolume create /btrfs_tmp/root
umount /btrfs_tmp
'';
networking.useDHCP = lib.mkDefault true;
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
}