| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame] | 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 | |
| 20 | See <file:Documentation/early-userspace/README> for more details. |
| 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". |
| 47 | |
| 48 | config 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 | |
| 57 | config 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 | |
| 66 | config 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 | |
| 75 | config 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 | |
| 84 | config 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 | |
| 93 | config 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. |