mirror of
https://github.com/NixOS/mobile-nixos.git
synced 2024-12-15 02:43:24 +03:00
94 lines
2.9 KiB
Nix
94 lines
2.9 KiB
Nix
# This provides `build.rootfs`, which is the rootfs image (ext4) built from
|
|
# the current configuration.
|
|
{ config, lib, pkgs, ... }:
|
|
|
|
let
|
|
inherit (config.boot) growPartition;
|
|
inherit (lib) optionalString types;
|
|
inherit (config.mobile._internal) compressLargeArtifacts;
|
|
inherit (pkgs) buildPackages;
|
|
rootfsLabel = config.mobile.generatedFilesystems.rootfs.label;
|
|
in
|
|
{
|
|
boot.loader.grub.enable = false;
|
|
boot.loader.generic-extlinux-compatible.enable = false;
|
|
|
|
boot.growPartition = lib.mkDefault true;
|
|
|
|
mobile.generatedFilesystems.rootfs = lib.mkDefault {
|
|
type = "ext4";
|
|
label = "NIXOS_SYSTEM";
|
|
id = "44444444-4444-4444-8888-888888888888";
|
|
|
|
populateCommands =
|
|
let
|
|
closureInfo = pkgs.buildPackages.closureInfo { rootPaths = config.system.build.toplevel; };
|
|
in
|
|
''
|
|
mkdir -p ./nix/store
|
|
echo "Copying system closure..."
|
|
while IFS= read -r path; do
|
|
echo " Copying $path"
|
|
cp -prf "$path" ./nix/store
|
|
done < "${closureInfo}/store-paths"
|
|
echo "Done copying system closure..."
|
|
cp -v ${closureInfo}/registration ./nix-path-registration
|
|
'';
|
|
|
|
# Give some headroom for initial mounting.
|
|
extraPadding = pkgs.imageBuilder.size.MiB 20;
|
|
|
|
# FIXME: See #117, move compression into the image builder.
|
|
# Zstd can take a long time to complete successfully at high compression
|
|
# levels. Increasing the compression level could lead to timeouts.
|
|
postProcess = optionalString compressLargeArtifacts ''
|
|
(PS4=" $ "; set -x
|
|
PATH="$PATH:${buildPackages.zstd}/bin"
|
|
cd $out
|
|
ls -lh
|
|
time zstd -10 --rm "$filename"
|
|
ls -lh
|
|
)
|
|
'' + ''
|
|
(PS4=" $ "; set -x
|
|
mkdir $out/nix-support
|
|
cat <<EOF > $out/nix-support/hydra-build-products
|
|
file rootfs${optionalString compressLargeArtifacts "-zstd"} $out/$filename${optionalString compressLargeArtifacts ".zst"}
|
|
EOF
|
|
)
|
|
'';
|
|
|
|
zstd = compressLargeArtifacts;
|
|
};
|
|
|
|
boot.postBootCommands = ''
|
|
# On the first boot do some maintenance tasks
|
|
if [ -f /nix-path-registration ]; then
|
|
# Register the contents of the initial Nix store
|
|
${config.nix.package.out}/bin/nix-store --load-db < /nix-path-registration
|
|
|
|
# nixos-rebuild also requires a "system" profile and an /etc/NIXOS tag.
|
|
touch /etc/NIXOS
|
|
${config.nix.package.out}/bin/nix-env -p /nix/var/nix/profiles/system --set /run/current-system
|
|
|
|
# Prevents this from running on later boots.
|
|
rm -f /nix-path-registration
|
|
fi
|
|
'';
|
|
|
|
fileSystems = {
|
|
"/" = lib.mkDefault {
|
|
device = "/dev/disk/by-label/${rootfsLabel}";
|
|
fsType = "ext4";
|
|
autoResize = true;
|
|
};
|
|
};
|
|
|
|
# FIXME: Move this in a proper module + task for the filesystem.
|
|
# This is a "wrong" assumption, that only holds through since we are setting
|
|
# fileSystems."/".autoResize to true here.
|
|
mobile.boot.stage-1.extraUtils = with pkgs; [
|
|
{ package = e2fsprogs; }
|
|
];
|
|
}
|