liminix/modules/ubifs.nix
Daniel Barlow ed925588f7 extract common code to make root filesystem hierarchy
which is then used by the filesystem image creators (ubifs, ext4,
jffs2 etc)
2023-12-05 17:32:18 +00:00

48 lines
1.2 KiB
Nix

{
config
, pkgs
, lib
, ...
}:
let
inherit (lib) mkIf mkOption types;
o = config.system.outputs;
in
{
imports = [
./initramfs.nix
];
options.hardware.ubi = {
minIOSize = mkOption { type = types.str; };
eraseBlockSize = mkOption { type = types.str; }; # LEB
maxLEBcount = mkOption { type = types.str; }; # LEB
};
config = mkIf (config.rootfsType == "ubifs") {
kernel.config = {
MTD_UBI="y";
UBIFS_FS = "y";
UBIFS_FS_SECURITY = "n";
};
boot.initramfs.enable = true;
system.outputs = {
systemConfiguration =
pkgs.systemconfig config.filesystem.contents;
rootfs =
let
inherit (pkgs.pkgsBuildBuild) runCommand mtdutils;
cfg = config.hardware.ubi;
in runCommand "mkfs.ubifs" {
depsBuildBuild = [ mtdutils ];
} ''
mkdir tmp
cp -a ${o.rootfsFiles} tmp
${if config.boot.loader.extlinux.enable
then "(cd tmp && ln -s ${o.extlinux} boot)"
else ""
}
mkfs.ubifs -x favor_lzo -c ${cfg.maxLEBcount} -m ${cfg.minIOSize} -e ${cfg.eraseBlockSize} -y -r tmp --output $out --squash-uids -o $out
'';
};
};
}