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Linux/usr/Kconfig

  1 #
  2 # Configuration for initramfs
  3 #
  4 
  5 config INITRAMFS_SOURCE
  6         string "Initramfs source file(s)"
  7         default ""
  8         help
  9           This can be either a single cpio archive with a .cpio suffix or a
 10           space-separated list of directories and files for building the
 11           initramfs image.  A cpio archive should contain a filesystem archive
 12           to be used as an initramfs image.  Directories should contain a
 13           filesystem layout to be included in the initramfs image.  Files
 14           should contain entries according to the format described by the
 15           "usr/gen_init_cpio" program in the kernel tree.
 16 
 17           When multiple directories and files are specified then the
 18           initramfs image will be the aggregate of all of them.
 19 
 20           See <file:Documentation/early-userspace/README> for more details.
 21 
 22           If you are not sure, leave it blank.
 23 
 24 config INITRAMFS_ROOT_UID
 25         int "User ID to map to 0 (user root)"
 26         depends on INITRAMFS_SOURCE!=""
 27         default "0"
 28         help
 29           This setting is only meaningful if the INITRAMFS_SOURCE is
 30           contains a directory.  Setting this user ID (UID) to something
 31           other than "0" will cause all files owned by that UID to be
 32           owned by user root in the initial ramdisk image.
 33 
 34           If you are not sure, leave it set to "0".
 35 
 36 config INITRAMFS_ROOT_GID
 37         int "Group ID to map to 0 (group root)"
 38         depends on INITRAMFS_SOURCE!=""
 39         default "0"
 40         help
 41           This setting is only meaningful if the INITRAMFS_SOURCE is
 42           contains a directory.  Setting this group ID (GID) to something
 43           other than "0" will cause all files owned by that GID to be
 44           owned by group root in the initial ramdisk image.
 45 
 46           If you are not sure, leave it set to "0".
 47 
 48 config RD_GZIP
 49         bool "Support initial ramdisks compressed using gzip" if EXPERT
 50         default y
 51         depends on BLK_DEV_INITRD
 52         select DECOMPRESS_GZIP
 53         help
 54           Support loading of a gzip encoded initial ramdisk or cpio buffer.
 55           If unsure, say Y.
 56 
 57 config RD_BZIP2
 58         bool "Support initial ramdisks compressed using bzip2" if EXPERT
 59         default !EXPERT
 60         depends on BLK_DEV_INITRD
 61         select DECOMPRESS_BZIP2
 62         help
 63           Support loading of a bzip2 encoded initial ramdisk or cpio buffer
 64           If unsure, say N.
 65 
 66 config RD_LZMA
 67         bool "Support initial ramdisks compressed using LZMA" if EXPERT
 68         default !EXPERT
 69         depends on BLK_DEV_INITRD
 70         select DECOMPRESS_LZMA
 71         help
 72           Support loading of a LZMA encoded initial ramdisk or cpio buffer
 73           If unsure, say N.
 74 
 75 config RD_XZ
 76         bool "Support initial ramdisks compressed using XZ" if EXPERT
 77         default !EXPERT
 78         depends on BLK_DEV_INITRD
 79         select DECOMPRESS_XZ
 80         help
 81           Support loading of a XZ encoded initial ramdisk or cpio buffer.
 82           If unsure, say N.
 83 
 84 config RD_LZO
 85         bool "Support initial ramdisks compressed using LZO" if EXPERT
 86         default !EXPERT
 87         depends on BLK_DEV_INITRD
 88         select DECOMPRESS_LZO
 89         help
 90           Support loading of a LZO encoded initial ramdisk or cpio buffer
 91           If unsure, say N.
 92 
 93 config RD_LZ4
 94         bool "Support initial ramdisks compressed using LZ4" if EXPERT
 95         default !EXPERT
 96         depends on BLK_DEV_INITRD
 97         select DECOMPRESS_LZ4
 98         help
 99           Support loading of a LZ4 encoded initial ramdisk or cpio buffer
100           If unsure, say N.

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