[PATCH] Update ramdisk documentation

[pandora-kernel.git] / Documentation / ramdisk.txt

diff --git a/Documentation/ramdisk.txt b/Documentation/ramdisk.txt
index 7c25584..52f75b7 100644 (file)
--- a/Documentation/ramdisk.txt
+++ b/Documentation/ramdisk.txt
@@ -6,7 +6,7 @@ Contents:
        1) Overview
        2) Kernel Command Line Parameters
        3) Using "rdev -r"
        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
 
 
 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,
 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.
 
 
 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
        ===================
 
 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"
 
 
 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
 
 ./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
 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"
 
 
        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
 ----------------------------------------------
 
 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
 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