{ config , pkgs , lib , ... }: let inherit (lib) mkIf; in { imports = [ ./initramfs.nix ]; config = mkIf (config.rootfsType == "jffs2") { kernel.config = { JFFS2_FS = "y"; JFFS2_LZO = "y"; JFFS2_RTIME = "y"; JFFS2_COMPRESSION_OPTIONS = "y"; JFFS2_ZLIB = "y"; JFFS2_CMODE_SIZE = "y"; }; boot.initramfs.enable = true; outputs = rec { systemConfiguration = pkgs.systemconfig config.filesystem.contents; rootfs = let inherit (pkgs.pkgsBuildBuild) runCommand mtdutils; endian = if pkgs.stdenv.isBigEndian then "--big-endian" else "--little-endian"; in runCommand "make-jffs2" { depsBuildBuild = [ mtdutils ]; } '' mkdir -p $TMPDIR/empty/nix/store/ cp ${systemConfiguration}/bin/activate $TMPDIR/empty/activate ln -s ${pkgs.s6-init-bin}/bin/init $TMPDIR/empty/init grafts=$(sed < ${systemConfiguration}/etc/nix-store-paths 's/^\(.*\)$/--graft \1:\1/g') mkfs.jffs2 --compression-mode=size ${endian} -e ${config.hardware.flash.eraseBlockSize} --enable-compressor=lzo --pad --root $TMPDIR/empty --output $out $grafts --squash --faketime ''; }; }; }