Root/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" 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
57config 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
66config 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
75config 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
84config 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
93config 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.
101

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