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dbec4866 SR |
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 | ||
0979f378 | 20 | See <file:Documentation/early-userspace/README> for more details. |
dbec4866 SR |
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". | |
fb9a4ca9 PA |
47 | |
48 | config RD_GZIP | |
ec72c666 | 49 | bool "Support initial ramdisks compressed using gzip" |
73d8a12f | 50 | depends on BLK_DEV_INITRD |
ec72c666 | 51 | default y |
fb9a4ca9 PA |
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 | |
ec72c666 AK |
58 | bool "Support initial ramdisks compressed using bzip2" |
59 | default y | |
73d8a12f | 60 | depends on BLK_DEV_INITRD |
fb9a4ca9 PA |
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 | |
ec72c666 AK |
67 | bool "Support initial ramdisks compressed using LZMA" |
68 | default y | |
73d8a12f | 69 | depends on BLK_DEV_INITRD |
fb9a4ca9 PA |
70 | select DECOMPRESS_LZMA |
71 | help | |
55d1d26f | 72 | Support loading of a LZMA encoded initial ramdisk or cpio buffer |
fb9a4ca9 | 73 | If unsure, say N. |
ab76f3d7 | 74 | |
3ebe1243 | 75 | config RD_XZ |
ec72c666 | 76 | bool "Support initial ramdisks compressed using XZ" |
3ebe1243 | 77 | depends on BLK_DEV_INITRD |
ec72c666 | 78 | default y |
3ebe1243 LC |
79 | select DECOMPRESS_XZ |
80 | help | |
81 | Support loading of a XZ encoded initial ramdisk or cpio buffer. | |
82 | If unsure, say N. | |
83 | ||
cacb246f | 84 | config RD_LZO |
ec72c666 AK |
85 | bool "Support initial ramdisks compressed using LZO" |
86 | default y | |
cacb246f AT |
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 | ||
e76e1fdf | 93 | config RD_LZ4 |
ec72c666 AK |
94 | bool "Support initial ramdisks compressed using LZ4" |
95 | default y | |
e76e1fdf KL |
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. |