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