2 # Configuration for initramfs
5 config INITRAMFS_SOURCE
6 string "Initramfs source file(s)"
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.
17 When multiple directories and files are specified then the
18 initramfs image will be the aggregate of all of them.
20 See <file:Documentation/early-userspace/README> for more details.
22 If you are not sure, leave it blank.
24 config INITRAMFS_ROOT_UID
25 int "User ID to map to 0 (user root)"
26 depends on INITRAMFS_SOURCE!=""
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.
34 If you are not sure, leave it set to "0".
36 config INITRAMFS_ROOT_GID
37 int "Group ID to map to 0 (group root)"
38 depends on INITRAMFS_SOURCE!=""
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.
46 If you are not sure, leave it set to "0".
49 bool "Support initial ramdisks compressed using gzip"
50 depends on BLK_DEV_INITRD
52 select DECOMPRESS_GZIP
54 Support loading of a gzip encoded initial ramdisk or cpio buffer.
58 bool "Support initial ramdisks compressed using bzip2"
60 depends on BLK_DEV_INITRD
61 select DECOMPRESS_BZIP2
63 Support loading of a bzip2 encoded initial ramdisk or cpio buffer
67 bool "Support initial ramdisks compressed using LZMA"
69 depends on BLK_DEV_INITRD
70 select DECOMPRESS_LZMA
72 Support loading of a LZMA encoded initial ramdisk or cpio buffer
76 bool "Support initial ramdisks compressed using XZ"
77 depends on BLK_DEV_INITRD
81 Support loading of a XZ encoded initial ramdisk or cpio buffer.
85 bool "Support initial ramdisks compressed using LZO"
87 depends on BLK_DEV_INITRD
90 Support loading of a LZO encoded initial ramdisk or cpio buffer
94 bool "Support initial ramdisks compressed using LZ4"
96 depends on BLK_DEV_INITRD
99 Support loading of a LZ4 encoded initial ramdisk or cpio buffer