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From: Richard R. <fl...@us...> - 2005-09-11 23:53:37
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Changes by: flatcap Update of /cvsroot/linux-ntfs/dynamic-disk In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv14084 Modified Files: COPYING ChangeLog Makefile README Removed Files: Makefile.driver Log Message: removed kernel compatibility layer, turning ldminfo into a _real_ userspace tool. Ran ldminfo under valgrind to find and fix memory problems. Turned on all the compiler warnings and fixed them. Index: COPYING =================================================================== RCS file: /cvsroot/linux-ntfs/dynamic-disk/COPYING,v retrieving revision 1.6 retrieving revision 1.7 diff -u -p -r1.6 -r1.7 --- COPYING 10 Aug 2005 12:14:47 -0000 1.6 +++ COPYING 11 Sep 2005 23:53:23 -0000 1.7 @@ -1,13 +1,3 @@ - - NOTE: The GPL below is copyrighted by the Free Software Foundation, - but the instances of code that it refers to (the Linux-NTFS project, - including the Linux-LDM tool and kernel driver) are copyrighted by - me and others who actually wrote them. - - Richard Russon <ld...@fl...> - --------------------------------------------------------------------- - GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Index: ChangeLog =================================================================== RCS file: /cvsroot/linux-ntfs/dynamic-disk/ChangeLog,v retrieving revision 1.21 retrieving revision 1.22 diff -u -p -r1.21 -r1.22 --- ChangeLog 10 Aug 2005 12:14:47 -0000 1.21 +++ ChangeLog 11 Sep 2005 23:53:23 -0000 1.22 @@ -1,3 +1,9 @@ +2005-09-11 Richard Russon <ld...@fl...> + + * Ripped out all the kernel compatibility layer. + ldminfo is now, really, a userspace tool. + * Ran ldminfo under Valgrind and fixed leaks and bugs. + 2002-08-09 Richard Russon <ld...@fl...> * Version 0.0.8 released Index: Makefile =================================================================== RCS file: /cvsroot/linux-ntfs/dynamic-disk/Makefile,v retrieving revision 1.14 retrieving revision 1.15 diff -u -p -r1.14 -r1.15 --- Makefile 10 Aug 2005 12:14:47 -0000 1.14 +++ Makefile 11 Sep 2005 23:53:23 -0000 1.15 @@ -1,78 +1,26 @@ -# Copyright (C) 2001 Richard Russon +# Copyright (C) 2001-2005 Richard Russon -KERNEL = /usr/src/linux -CC = gcc -LD = ld -LN = ln -sf -RM = rm -f - -# General compile flags - -CFLAGS += -Wall -CFLAGS += -g -CFLAGS += -O2 -CFLAGS += -D_FILE_OFFSET_BITS=64 - -# LDM compile flags - -CFLAGS += -DCONFIG_LDM_PARTITION -CFLAGS += -DCONFIG_LDM_DEBUG -CFLAGS += -DCONFIG_LDM_EXPORT_SYMBOLS - -# Kernel compile flags - -CFLAGS += -D__KERNEL__ -CFLAGS += -Wstrict-prototypes -CFLAGS += -fomit-frame-pointer -CFLAGS += -fno-strict-aliasing -CFLAGS += -pipe -CFLAGS += -mpreferred-stack-boundary=2 -CFLAGS += -march=$(shell uname -m) - -# ld flags - -LFLAGS += -m elf_i386 -r - -#------------------------------------------------------------------------------- - -export CC CFLAGS KERNEL LD LFLAGS LN RM - -LINKS = docs src -DRIVER = Makefile.driver -TEST = test +INFO = ldminfo UTIL = ldmutil all: - make -f $(DRIVER) - make -C $(TEST) + make -C $(INFO) make -C $(UTIL) clean: - make -f $(DRIVER) clean - make -C $(TEST) clean - make -C $(UTIL) clean + make -C $(INFO) clean + make -C $(UTIL) clean distclean: - make -f $(DRIVER) distclean - make -C $(TEST) distclean - make -C $(UTIL) distclean - $(RM) $(LINKS) + make -C $(INFO) distclean + make -C $(UTIL) distclean find . -name tags -exec $(RM) {} \; find . -name \*.data -o -name \*.part -exec $(RM) {} \; -docs: - $(LN) linux/Documentation docs - -src: - $(LN) linux/fs/partitions src - -links: $(LINKS) - tags: force - ctags -R * - (cd linux/fs/partitions; ctags -R *) - (cd $(TEST); ctags -R * ../linux/fs/partitions) - (cd $(UTIL); ctags -R * ../linux/fs/partitions) + ctags -R . + make -C $(INFO) tags + (cd $(UTIL); ctags -R .) force: Index: README =================================================================== RCS file: /cvsroot/linux-ntfs/dynamic-disk/README,v retrieving revision 1.12 retrieving revision 1.13 diff -u -p -r1.12 -r1.13 --- README 10 Aug 2005 12:14:47 -0000 1.12 +++ README 11 Sep 2005 23:53:24 -0000 1.13 @@ -1,46 +1,102 @@ -Logical Disk Manager (Dynamic Disk) Tool and Driver. + LDM - Logical Disk Manager (Dynamic Disks) + ------------------------------------------ -There are two packages included here. A userland tool to dump the contents of -a Window 2000 LDM Disk. Also there's a Linux Filesystem driver. You need to -know what you're doing to use this. +Overview +-------- -The packages are part of the Linux-NTFS Project which is hosted on SourceForge: +Windows 2000 and XP 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 +nearly 2000. - http://linux-ntfs.sourceforge.net +Any partitions created under the LDM are called "Dynamic Disks". There are no +longer any primary or extended partitions. Normal MSDOS style partitions are +now known as Basic Disks. -I've included a prebuilt copy of the tool in the .tar If you want to build it -yourself you need the kernel header files, then "make" should do the trick. -If it doesn't build without errors, then you'll need to know your way around -the kernel to fix things. +If you wish to use Spanned, Striped, Mirrored or RAID 5 Volumes, you must use +Dynamic Disks. The journalling allows Windows to make changes to these +partitions and filesystems without the need to reboot. -LDMInfo can be used in three ways: +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. - ldminfo /dev/hdb Standard partition list +To prevent legacy applications from repartitioning the disk, the LDM creates a +dummy MSDOS partition containing one disk-sized partition. - ldminfo --dump /dev/hdb Detailed dump of LDM Database - ldminfo --copy /dev/hdb Write the LDM Database to a file +Example +------- -In addition, you can add the --debug flag. This will show you what's -going on inside the code. Not at all interesting, but vital to help -us debug the application. +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. -The standard partition list looks something like this: + 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 - Device | Offset Bytes Sectors MiB | Size Bytes Sectors MiB - -------+--------------------------------+------------------------------- - hdb | 0 0 0 | 21159936 41328 20 - hdb1 | 32256 63 0 | 5242880 10240 5 - hdb2 | 5275136 10303 5 | 5242880 10240 5 - hdb3 | 10518016 20543 10 | 3145728 6144 3 - hdb4 | 13663744 26687 13 | 6291456 12288 6 +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: -Any bugs / problems / comments, please email me. + hda: 102400 sectors w/32KiB Cache, CHS=50/64/32 + hda: [LDM] hda1 hda2 hda3 hda4 hda5 hda6 hda7 + + +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 + +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 + +N.B. The partition code cannot be compiled as a module. + +As with all the partition code, if the driver doesn't see signs of its type of +partition, it will pass control to another driver, so there is no harm in +enabling it. + +If you have Dynamic Disks but don't enable the driver, then all you will see +is a dummy MSDOS partition filling the whole disk. You won't be able to mount +any of the volumes on the disk. + + +Booting +------- + +If you enable LDM support, then lilo is capable of booting from any of the +discovered partitions. However, grub does not understand the LDM partitioning +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. + + http://linux-ntfs.sourceforge.net/ldm/index.html + http://linux-ntfs.sourceforge.net/downloads.html + +If you have any LDM questions that aren't answered on the website, email me. Cheers, - FlatCap (Richard). + FlatCap - Richard Russon ld...@fl... - http://linux-ntfs.sourceforge.net --- Makefile.driver DELETED --- |
