LXR linux/usr/Kconfig

   1#
   2# Configuration for initramfs
   3#
   4
   5config 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
  24config 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
  36config 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
  48config RD_GZIP
  49        bool "Support initial ramdisks compressed using gzip"
  50        depends on BLK_DEV_INITRD
  51        default y
  52        select DECOMPRESS_GZIP
  53        help
  54          Support loading of a gzip encoded initial ramdisk or cpio buffer.
  55          If unsure, say Y.
  56
  57config RD_BZIP2
  58        bool "Support initial ramdisks compressed using bzip2"
  59        default y
  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
  66config RD_LZMA
  67        bool "Support initial ramdisks compressed using LZMA"
  68        default y
  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
  75config RD_XZ
  76        bool "Support initial ramdisks compressed using XZ"
  77        depends on BLK_DEV_INITRD
  78        default y
  79        select DECOMPRESS_XZ
  80        help
  81          Support loading of a XZ encoded initial ramdisk or cpio buffer.
  82          If unsure, say N.
  83
  84config RD_LZO
  85        bool "Support initial ramdisks compressed using LZO"
  86        default y
  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
  93config RD_LZ4
  94        bool "Support initial ramdisks compressed using LZ4"
  95        default y
  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.
 101