config BR2_TARGET_ROOTFS_CPIO bool "cpio the root filesystem" help Build a cpio archive of the root filesystem choice prompt "Compression method" default BR2_TARGET_ROOTFS_CPIO_NONE depends on BR2_TARGET_ROOTFS_CPIO help Select compressor for cpio filesystem of the root filesystem config BR2_TARGET_ROOTFS_CPIO_NONE bool "no compression" help Do not compress the cpio filesystem. config BR2_TARGET_ROOTFS_CPIO_GZIP bool "gzip" help Do compress the cpio filesystem with gzip. Note that you either have to have gzip installed on your host or select to build a gzip for your host. See the packages submenu. config BR2_TARGET_ROOTFS_CPIO_BZIP2 bool "bzip2" help Do compress the cpio filesystem with bzip2. Note that you either have to have bzip2 installed on your host or select to build a bzip2 for your host. See the packages submenu. config BR2_TARGET_ROOTFS_CPIO_LZMA bool "lzma" help Do compress the cpio filesystem with lzma. Note that you either have to have lzma installed on your host or select to build a lzma for your host. See the packages submenu. endchoice