config BR2_TARGET_ROOTFS_CPIO
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bool "cpio the root filesystem (for use as an initial RAM filesystem)"
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help
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Build a cpio archive of the root filesystem. This is typically
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used for an initial RAM filesystem that is passed to the kernel
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by the bootloader.
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if BR2_TARGET_ROOTFS_CPIO
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choice
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prompt "Compression method"
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default BR2_TARGET_ROOTFS_CPIO_NONE
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help
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Select compressor for cpio filesystem of the root filesystem.
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If you use the cpio archive as an initial RAM filesystem, make
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sure the kernel contains the decompression algorithm selected
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here.
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config BR2_TARGET_ROOTFS_CPIO_NONE
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bool "no compression"
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help
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Do not compress the cpio filesystem.
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config BR2_TARGET_ROOTFS_CPIO_GZIP
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bool "gzip"
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help
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Do compress the cpio filesystem with gzip.
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config BR2_TARGET_ROOTFS_CPIO_BZIP2
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bool "bzip2"
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help
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Do compress the cpio filesystem with bzip2.
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config BR2_TARGET_ROOTFS_CPIO_LZ4
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bool "lz4"
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help
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Do compress the cpio filesystem with lz4.
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config BR2_TARGET_ROOTFS_CPIO_LZMA
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bool "lzma"
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help
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Do compress the cpio filesystem with lzma.
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config BR2_TARGET_ROOTFS_CPIO_LZO
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bool "lzo"
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help
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Do compress the cpio filesystem with lzop.
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config BR2_TARGET_ROOTFS_CPIO_XZ
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bool "xz"
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help
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Do compress the cpio filesystem with xz.
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endchoice
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config BR2_TARGET_ROOTFS_CPIO_UIMAGE
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bool "Create U-Boot image of the root filesystem"
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select BR2_PACKAGE_HOST_UBOOT_TOOLS
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help
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Add a U-Boot header to the cpio root filesystem. This allows
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the initramfs to be loaded with the bootm command in U-Boot.
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The U-Boot image will be called rootfs.cpio.uboot
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endif # BR2_TARGET_ROOTFS_CPIO
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