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usr/Kconfig 2.91 KB
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  #
  # Configuration for initramfs
  #
  
  config INITRAMFS_SOURCE
  	string "Initramfs source file(s)"
  	default ""
  	help
  	  This can be either a single cpio archive with a .cpio suffix or a
  	  space-separated list of directories and files for building the
  	  initramfs image.  A cpio archive should contain a filesystem archive
  	  to be used as an initramfs image.  Directories should contain a
  	  filesystem layout to be included in the initramfs image.  Files
  	  should contain entries according to the format described by the
  	  "usr/gen_init_cpio" program in the kernel tree.
  
  	  When multiple directories and files are specified then the
  	  initramfs image will be the aggregate of all of them.
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  	  See <file:Documentation/early-userspace/README> for more details.
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  	  If you are not sure, leave it blank.
  
  config INITRAMFS_ROOT_UID
  	int "User ID to map to 0 (user root)"
  	depends on INITRAMFS_SOURCE!=""
  	default "0"
  	help
  	  This setting is only meaningful if the INITRAMFS_SOURCE is
  	  contains a directory.  Setting this user ID (UID) to something
  	  other than "0" will cause all files owned by that UID to be
  	  owned by user root in the initial ramdisk image.
  
  	  If you are not sure, leave it set to "0".
  
  config INITRAMFS_ROOT_GID
  	int "Group ID to map to 0 (group root)"
  	depends on INITRAMFS_SOURCE!=""
  	default "0"
  	help
  	  This setting is only meaningful if the INITRAMFS_SOURCE is
  	  contains a directory.  Setting this group ID (GID) to something
  	  other than "0" will cause all files owned by that GID to be
  	  owned by group root in the initial ramdisk image.
  
  	  If you are not sure, leave it set to "0".
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  config RD_GZIP
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  	bool "Support initial ramdisks compressed using gzip"
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  	depends on BLK_DEV_INITRD
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  	default y
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  	select DECOMPRESS_GZIP
  	help
  	  Support loading of a gzip encoded initial ramdisk or cpio buffer.
  	  If unsure, say Y.
  
  config RD_BZIP2
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  	bool "Support initial ramdisks compressed using bzip2"
  	default y
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  	depends on BLK_DEV_INITRD
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  	select DECOMPRESS_BZIP2
  	help
  	  Support loading of a bzip2 encoded initial ramdisk or cpio buffer
  	  If unsure, say N.
  
  config RD_LZMA
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  	bool "Support initial ramdisks compressed using LZMA"
  	default y
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  	depends on BLK_DEV_INITRD
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  	select DECOMPRESS_LZMA
  	help
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  	  Support loading of a LZMA encoded initial ramdisk or cpio buffer
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  	  If unsure, say N.
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  config RD_XZ
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  	bool "Support initial ramdisks compressed using XZ"
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  	depends on BLK_DEV_INITRD
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  	default y
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  	select DECOMPRESS_XZ
  	help
  	  Support loading of a XZ encoded initial ramdisk or cpio buffer.
  	  If unsure, say N.
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  config RD_LZO
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  	bool "Support initial ramdisks compressed using LZO"
  	default y
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  	depends on BLK_DEV_INITRD
  	select DECOMPRESS_LZO
  	help
  	  Support loading of a LZO encoded initial ramdisk or cpio buffer
  	  If unsure, say N.
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  config RD_LZ4
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  	bool "Support initial ramdisks compressed using LZ4"
  	default y
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  	depends on BLK_DEV_INITRD
  	select DECOMPRESS_LZ4
  	help
  	  Support loading of a LZ4 encoded initial ramdisk or cpio buffer
  	  If unsure, say N.