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-rw-r--r--Documentation/ldm.txt56
1 files changed, 34 insertions, 22 deletions
diff --git a/Documentation/ldm.txt b/Documentation/ldm.txt
index 4f80edd14d0a..12c571368e73 100644
--- a/Documentation/ldm.txt
+++ b/Documentation/ldm.txt
@@ -1,9 +1,9 @@
+==========================================
+LDM - Logical Disk Manager (Dynamic Disks)
+==========================================
- LDM - Logical Disk Manager (Dynamic Disks)
- ------------------------------------------
-
-Originally Written by FlatCap - Richard Russon <ldm@flatcap.org>.
-Last Updated by Anton Altaparmakov on 30 March 2007 for Windows Vista.
+:Author: Originally Written by FlatCap - Richard Russon <ldm@flatcap.org>.
+:Last Updated: Anton Altaparmakov on 30 March 2007 for Windows Vista.
Overview
--------
@@ -37,24 +37,36 @@ Example
-------
Below we have a 50MiB disk, divided into seven partitions.
-N.B. The missing 1MiB at the end of the disk is where the LDM database is
- stored.
-
- Device | Offset Bytes Sectors MiB | Size Bytes Sectors MiB
- -------+----------------------------+---------------------------
- hda | 0 0 0 | 52428800 102400 50
- hda1 | 51380224 100352 49 | 1048576 2048 1
- hda2 | 16384 32 0 | 6979584 13632 6
- hda3 | 6995968 13664 6 | 10485760 20480 10
- hda4 | 17481728 34144 16 | 4194304 8192 4
- hda5 | 21676032 42336 20 | 5242880 10240 5
- hda6 | 26918912 52576 25 | 10485760 20480 10
- hda7 | 37404672 73056 35 | 13959168 27264 13
+
+.. note::
+
+ The missing 1MiB at the end of the disk is where the LDM database is
+ stored.
+
++-------++--------------+---------+-----++--------------+---------+----+
+|Device || Offset Bytes | Sectors | MiB || Size Bytes | Sectors | MiB|
++=======++==============+=========+=====++==============+=========+====+
+|hda || 0 | 0 | 0 || 52428800 | 102400 | 50|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda1 || 51380224 | 100352 | 49 || 1048576 | 2048 | 1|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda2 || 16384 | 32 | 0 || 6979584 | 13632 | 6|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda3 || 6995968 | 13664 | 6 || 10485760 | 20480 | 10|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda4 || 17481728 | 34144 | 16 || 4194304 | 8192 | 4|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda5 || 21676032 | 42336 | 20 || 5242880 | 10240 | 5|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda6 || 26918912 | 52576 | 25 || 10485760 | 20480 | 10|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda7 || 37404672 | 73056 | 35 || 13959168 | 27264 | 13|
++-------++--------------+---------+-----++--------------+---------+----+
The LDM Database may not store the partitions in the order that they appear on
disk, but the driver will sort them.
-When Linux boots, you will see something like:
+When Linux boots, you will see something like::
hda: 102400 sectors w/32KiB Cache, CHS=50/64/32
hda: [LDM] hda1 hda2 hda3 hda4 hda5 hda6 hda7
@@ -65,13 +77,13 @@ Compiling LDM Support
To enable LDM, choose the following two options:
- "Advanced partition selection" CONFIG_PARTITION_ADVANCED
- "Windows Logical Disk Manager (Dynamic Disk) support" CONFIG_LDM_PARTITION
+ - "Advanced partition selection" CONFIG_PARTITION_ADVANCED
+ - "Windows Logical Disk Manager (Dynamic Disk) support" CONFIG_LDM_PARTITION
If you believe the driver isn't working as it should, you can enable the extra
debugging code. This will produce a LOT of output. The option is:
- "Windows LDM extra logging" CONFIG_LDM_DEBUG
+ - "Windows LDM extra logging" CONFIG_LDM_DEBUG
N.B. The partition code cannot be compiled as a module.