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authorNathan Scott <nathans@sgi.com>2006-07-14 11:24:10 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-15 08:53:53 +0400
commit086626a747300e37043a553dac639c5900c4a2c0 (patch)
tree9aedfc36ef8fda99a83add9e92ce5f18c427528e /Documentation/ramdisk.txt
parent22c4af4092fc2e037ce2e2922023fc222cf0c443 (diff)
downloadlinux-086626a747300e37043a553dac639c5900c4a2c0.tar.xz
[PATCH] Update ramdisk documentation
The default ramdisk blocksize is actually 1024, not 512 bytes. Also fixes up some trailing whitespace issues. Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/ramdisk.txt')
-rw-r--r--Documentation/ramdisk.txt12
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/ramdisk.txt b/Documentation/ramdisk.txt
index 7c25584e082c..52f75b7d51c2 100644
--- a/Documentation/ramdisk.txt
+++ b/Documentation/ramdisk.txt
@@ -6,7 +6,7 @@ Contents:
1) Overview
2) Kernel Command Line Parameters
3) Using "rdev -r"
- 4) An Example of Creating a Compressed RAM Disk
+ 4) An Example of Creating a Compressed RAM Disk
1) Overview
@@ -34,7 +34,7 @@ make it clearer. The original "ramdisk=<ram_size>" has been kept around for
compatibility reasons, but it may be removed in the future.
The new RAM disk also has the ability to load compressed RAM disk images,
-allowing one to squeeze more programs onto an average installation or
+allowing one to squeeze more programs onto an average installation or
rescue floppy disk.
@@ -51,7 +51,7 @@ default is 4096 (4 MB) (8192 (8 MB) on S390).
===================
This parameter tells the RAM disk driver how many bytes to use per block. The
-default is 512.
+default is 1024 (BLOCK_SIZE).
3) Using "rdev -r"
@@ -70,7 +70,7 @@ These numbers are no magical secrets, as seen below:
./arch/i386/kernel/setup.c:#define RAMDISK_PROMPT_FLAG 0x8000
./arch/i386/kernel/setup.c:#define RAMDISK_LOAD_FLAG 0x4000
-Consider a typical two floppy disk setup, where you will have the
+Consider a typical two floppy disk setup, where you will have the
kernel on disk one, and have already put a RAM disk image onto disk #2.
Hence you want to set bits 0 to 13 as 0, meaning that your RAM disk
@@ -97,12 +97,12 @@ Since the default start = 0 and the default prompt = 1, you could use:
append = "load_ramdisk=1"
-4) An Example of Creating a Compressed RAM Disk
+4) An Example of Creating a Compressed RAM Disk
----------------------------------------------
To create a RAM disk image, you will need a spare block device to
construct it on. This can be the RAM disk device itself, or an
-unused disk partition (such as an unmounted swap partition). For this
+unused disk partition (such as an unmounted swap partition). For this
example, we will use the RAM disk device, "/dev/ram0".
Note: This technique should not be done on a machine with less than 8 MB