The compressor to use on the initrd image. May be any of:
- The name of one of the predefined compressors, see pkgs/build-support/kernel/initrd-compressor-meta.nix for the definitions.
- A function which, given the nixpkgs package set, returns the path to a compressor tool, e.g.
pkgs: "${pkgs.pigz}/bin/pigz" - (not recommended, because it does not work when cross-compiling) the full path to a compressor tool, e.g.
"${pkgs.pigz}/bin/pigz"
The given program should read data from stdin and write it to stdout compressed.
Declarations
Type
string or function that evaluates to a(n) stringDefault
{
_type = "literalMD";
text = "`zstd` if the kernel supports it (5.9+), `gzip` if not";
}Example
"xz"