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