Mads Fagerlund
d04b17fe52
Shrinking the macOS APFS container freed ~256G, but it landed at a lower disk offset than the Linux partitions, so the ext4 root could never be grown into it — a partition only ever extends into free space that follows it. Rather than relocate the Asahi stub and ESP (the reliable way to brick the boot chain), the root moved into the gap as a new partition: p8 29424896..96687621 256.6G btrfs, subvol @, compress=zstd zstd puts ~70G of data in ~37G, and free space went from 7.3G to 220G. The old ext4 p5 is left intact as a rollback; generations <= 48 still boot it, since each generation carries its own root UUID in its initrd. Also lands the pending work in this tree: postgresql in home.packages, the deepvis cachix substituter with a root-owned netrc, nixbuild.net as a builder for both arches, the caffeine stay-awake unit with its SUPER+A bind, and monthly btrfs autoScrub on the new root. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
34 lines
1.1 KiB
Nix
34 lines
1.1 KiB
Nix
# Do not modify this file! It was generated by ‘nixos-generate-config’
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# and may be overwritten by future invocations. Please make changes
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# to /etc/nixos/configuration.nix instead.
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{ config, lib, pkgs, modulesPath, ... }:
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{
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imports =
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[ (modulesPath + "/installer/scan/not-detected.nix")
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];
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boot.initrd.availableKernelModules = [ "usb_storage" "sdhci_pci" ];
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boot.initrd.kernelModules = [ ];
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boot.kernelModules = [ ];
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boot.extraModulePackages = [ ];
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# Root lives on nvme0n1p8 (btrfs, subvol @) — the 256G reclaimed from
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# the shrunk macOS container. The old ext4 p5 is kept as a rollback until
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# it is added to this pool as a second device.
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fileSystems."/" =
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{ device = "/dev/disk/by-uuid/c828c1a0-ce7b-4e27-b8e4-bce032bb30bf";
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fsType = "btrfs";
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options = [ "subvol=@" "compress=zstd" "noatime" ];
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};
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fileSystems."/boot" =
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{ device = "/dev/disk/by-uuid/0BB8-A960";
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fsType = "vfat";
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options = [ "fmask=0022" "dmask=0022" ];
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};
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swapDevices = [ ];
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nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
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}
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