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LDM: Fix for Windows Vista dynamic disks

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This fixes the LDM driver so that it works with Windows Vista dynamic
disks which are subtly different to Windows 2000/XP ones.

The patch was needed to get a Vista formatted dynamic disk to be
recognized and parsed successfully.

Thanks go to Chris Teachworth for the report and testing.

Cc: Richard Russon <ldm@flatcap.org>
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Anton Altaparmakov
2007-05-21 09:37:42 +01:00
committed by Linus Torvalds
parent 17304383eb
commit dde33348e5
5 changed files with 144 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/ldm.txt
+14 -7
View File
@@ -2,10 +2,13 @@
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.
Overview
--------
Windows 2000 and XP use a new partitioning scheme. It is a complete
Windows 2000, XP, and Vista use a new partitioning scheme. It is a complete
replacement for the MSDOS style partitions. It stores its information in a
1MiB journalled database at the end of the physical disk. The size of
partitions is limited only by disk space. The maximum number of partitions is
@@ -23,7 +26,11 @@ Once the LDM driver has divided up the disk, you can use the MD driver to
assemble any multi-partition volumes, e.g. Stripes, RAID5.
To prevent legacy applications from repartitioning the disk, the LDM creates a
dummy MSDOS partition containing one disk-sized partition.
dummy MSDOS partition containing one disk-sized partition. This is what is
supported with the Linux LDM driver.
A newer approach that has been implemented with Vista is to put LDM on top of a
GPT label disk. This is not supported by the Linux LDM driver yet.
Example
@@ -88,13 +95,13 @@ and cannot boot from a Dynamic Disk.
More Documentation
------------------
There is an Overview of the LDM online together with complete Technical
Documentation. It can also be downloaded in html.
There is an Overview of the LDM together with complete Technical Documentation.
It is available for download.
http://linux-ntfs.sourceforge.net/ldm/index.html
http://linux-ntfs.sourceforge.net/downloads.html
http://www.linux-ntfs.org/content/view/19/37/
If you have any LDM questions that aren't answered on the website, email me.
If you have any LDM questions that aren't answered in the documentation, email
me.
Cheers,
FlatCap - Richard Russon