diff options
Diffstat (limited to 'Documentation/early-userspace')
-rw-r--r-- | Documentation/early-userspace/README | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/early-userspace/README b/Documentation/early-userspace/README index cddbac456c29..766d320c8eb6 100644 --- a/Documentation/early-userspace/README +++ b/Documentation/early-userspace/README | |||
@@ -19,7 +19,7 @@ It consists of several major infrastructure components: | |||
19 | - klibc, a userspace C library, currently packaged separately, that is | 19 | - klibc, a userspace C library, currently packaged separately, that is |
20 | optimized for correctness and small size. | 20 | optimized for correctness and small size. |
21 | 21 | ||
22 | The cpio file format used by initramfs is the "newc" (aka "cpio -c") | 22 | The cpio file format used by initramfs is the "newc" (aka "cpio -H newc") |
23 | format, and is documented in the file "buffer-format.txt". There are | 23 | format, and is documented in the file "buffer-format.txt". There are |
24 | two ways to add an early userspace image: specify an existing cpio | 24 | two ways to add an early userspace image: specify an existing cpio |
25 | archive to be used as the image or have the kernel build process build | 25 | archive to be used as the image or have the kernel build process build |
@@ -44,7 +44,7 @@ The image is specified as one or more sources in | |||
44 | CONFIG_INITRAMFS_SOURCE. Sources can be either directories or files - | 44 | CONFIG_INITRAMFS_SOURCE. Sources can be either directories or files - |
45 | cpio archives are *not* allowed when building from sources. | 45 | cpio archives are *not* allowed when building from sources. |
46 | 46 | ||
47 | A source directory will have it and all of it's contents packaged. The | 47 | A source directory will have it and all of its contents packaged. The |
48 | specified directory name will be mapped to '/'. When packaging a | 48 | specified directory name will be mapped to '/'. When packaging a |
49 | directory, limited user and group ID translation can be performed. | 49 | directory, limited user and group ID translation can be performed. |
50 | INITRAMFS_ROOT_UID can be set to a user ID that needs to be mapped to | 50 | INITRAMFS_ROOT_UID can be set to a user ID that needs to be mapped to |
@@ -144,7 +144,7 @@ c) using initramfs. The call to prepare_namespace() must be skipped. | |||
144 | initrd format, an cpio archive. It must be called "/init". This binary | 144 | initrd format, an cpio archive. It must be called "/init". This binary |
145 | is responsible to do all the things prepare_namespace() would do. | 145 | is responsible to do all the things prepare_namespace() would do. |
146 | 146 | ||
147 | To remain backwards compatibility, the /init binary will only run if it | 147 | To maintain backwards compatibility, the /init binary will only run if it |
148 | comes via an initramfs cpio archive. If this is not the case, | 148 | comes via an initramfs cpio archive. If this is not the case, |
149 | init/main.c:init() will run prepare_namespace() to mount the final root | 149 | init/main.c:init() will run prepare_namespace() to mount the final root |
150 | and exec one of the predefined init binaries. | 150 | and exec one of the predefined init binaries. |