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authorRandy Dunlap <randy.dunlap@oracle.com>2007-10-17 02:29:29 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 11:42:56 -0400
commit1810732e94576ae0d04e953ecaba8c7151c9a287 (patch)
treec2ff43ec67ea41d2e5fee33b5e9a0d828871d3b5 /Documentation/initrd.txt
parent0e1ccb9619e8e9ae86dfc5a4645ccf3bf5a2eb3f (diff)
docs: ramdisk/initrd/initramfs corrections
initrd/initramfs/ramdisk docs: - fix typos/spellos/grammar - clarify RAM disk config location - correct cpio option Acked-by: Bryan O'Sullivan <bos@serpentine.com> Acked-by: Rob Landley <rob@landley.net> Cc: Werner Almesberger <werner@almesberger.net> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/initrd.txt')
-rw-r--r--Documentation/initrd.txt12
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/initrd.txt b/Documentation/initrd.txt
index d3dc505104da..74f68b35f7c1 100644
--- a/Documentation/initrd.txt
+++ b/Documentation/initrd.txt
@@ -80,8 +80,8 @@ Compressed cpio images
80---------------------- 80----------------------
81 81
82Recent kernels have support for populating a ramdisk from a compressed cpio 82Recent kernels have support for populating a ramdisk from a compressed cpio
83archive, on such systems, the creation of a ramdisk image doesn't need to 83archive. On such systems, the creation of a ramdisk image doesn't need to
84involve special block devices or loopbacks, you merely create a directory on 84involve special block devices or loopbacks; you merely create a directory on
85disk with the desired initrd content, cd to that directory, and run (as an 85disk with the desired initrd content, cd to that directory, and run (as an
86example): 86example):
87 87
@@ -293,7 +293,7 @@ information as small as possible. In this case, a common initrd could be
293generated with all the necessary modules. Then, only /sbin/init or a file 293generated with all the necessary modules. Then, only /sbin/init or a file
294read by it would have to be different. 294read by it would have to be different.
295 295
296A third scenario are more convenient recovery disks, because information 296A third scenario is more convenient recovery disks, because information
297like the location of the root FS partition doesn't have to be provided at 297like the location of the root FS partition doesn't have to be provided at
298boot time, but the system loaded from initrd can invoke a user-friendly 298boot time, but the system loaded from initrd can invoke a user-friendly
299dialog and it can also perform some sanity checks (or even some form of 299dialog and it can also perform some sanity checks (or even some form of
@@ -339,8 +339,8 @@ the new, supported mechanism is called "pivot_root".
339Mixed change_root and pivot_root mechanism 339Mixed change_root and pivot_root mechanism
340------------------------------------------ 340------------------------------------------
341 341
342In case you did not want to use root=/dev/ram0 to trig the pivot_root mechanism, 342In case you did not want to use root=/dev/ram0 to trigger the pivot_root
343you may create both /linuxrc and /sbin/init in your initrd image. 343mechanism, you may create both /linuxrc and /sbin/init in your initrd image.
344 344
345/linuxrc would contain only the following: 345/linuxrc would contain only the following:
346 346
@@ -350,7 +350,7 @@ echo 0x0100 >/proc/sys/kernel/real-root-dev
350umount -n /proc 350umount -n /proc
351 351
352Once linuxrc exited, the kernel would mount again your initrd as root, 352Once linuxrc exited, the kernel would mount again your initrd as root,
353this time executing /sbin/init. Again, it would be duty of this init 353this time executing /sbin/init. Again, it would be the duty of this init
354to build the right environment (maybe using the root= device passed on 354to build the right environment (maybe using the root= device passed on
355the cmdline) before the final execution of the real /sbin/init. 355the cmdline) before the final execution of the real /sbin/init.
356 356