Version 0.60: Release notes updatedExt3Fsd-0.60

2 files changed, 657 insertions, 616 deletions

diff --git a/Ext3Fsd/notes.txt b/Ext3Fsd/notes.txt
index 3d688cf..be4925b 100755
--- a/Ext3Fsd/notes.txt
+++ b/Ext3Fsd/notes.txt
@@ -1,46 +1,61 @@
-
-==================================
-Release Notes for Ext2Fsd V0.53
-==================================
-
-Features implemented or bugfix since V0.52:
-
-    1, FIXME: BSOD with VHD/VHDX mounting on Win8 or layered FSD
-    2, FIXME: Mke2fs failed to format mounted EXT2 volumes
-    3, Enable writing with global or volume ext3-force-writi
-    4, Support ext4 dir hash (UNSIGNED cases for legacy/half
-    5, Fixed several warnings reported by scan.coverity.com
-
-Supported Ext3/4 features by 0.53:
-
-    1, flexible inode size: > 128 bytes, up to block size
-    2, dir_index:    htree directory index
-    3, filetype:     extra file mode in dentry
-    4, large_file:   > 4G files supported
-    5, sparse_super: super block backup in group descriptor
-    6, uninit_bg:    fast fsck and group checksum
-    7, extent:       reading, writing with no extending.
-    8, journal:      only support replay for internal journal
-    9, flex_bg:      first flexible metadata group
-
-Unsupported Ext3/4 features:
-
-    1, journal: log-based operations, external journal
-    2, extent: size truncating & expanding, file deletion
-    3, EA (extended attributes), ACL support
-    4, symlink creation
-
-Features to be implemented in next release:
-
-    1, full EXT4 extent feature support (extending, shrinking)
-    2, mounted as user: privilege checking with given uid & gid
-
-WARNINGS:
- 
-    The driver may crash your system and ruin your data unexpectedly,
-    since there might be software conflicts and I could only test it
-    on some of the popular platforms. You should use it with care and
-    use it at your own risk!
-
-Matt <mattwu@163.com>
-http://www.ext2fsd.com
+

+==================================

+Release Notes for Ext2Fsd V0.60

+==================================

+

+Features implemented or bugfix since V0.53:

+

+    1, Ext4 extent writing support (developed by ngkaho1234 @ gmail.com)

+       See his repository for more details:

+       http://github.com/ngkaho1234/Ext3Fsd.git

+    2, Size manipulation and i/o path revised for support of indirect and

+       extent-based mappings

+    3, 16T volume supported (tested and confirmed with 4T volume)

+       Version 0.53 and previous versions only support up to 2T volume

+       ticket: https://sourceforge.net/p/ext2fsd/bugs/134/

+    4, Deletion acceleration: truncation optimized for indirect-based files

+    5, Size-expanding disabled in IRP_MJ_CREATE for better performance.

+       Windows sometimes would truncate file size back to 0

+    6, Support Volume exclusive-open for e2fsprogs utils. Any attempts

+       will be denied while EXT4 volume is being checked (e2fsck).

+    7, FIXME:  Possible zero-content returned (requesting data from file tail)

+    8, FIXME:  File ByteOffset updated for FO_SYNCHRONOUS_IO open (async i/o)

+       ticket: https://sourceforge.net/p/ext2fsd/bugs/133/

+    9, FIXME:  don't do byte or range round up for paging i/o requests

+       ticket: https://sourceforge.net/p/ext2fsd/bugs/129/

+   10, FIXME:  occasional block bitmap difference issue, cased by checksum

+               caculation in uninit_bg group initializing

+

+

+Supported Ext3/4 features by 0.60:

+

+    1, flexible inode size: > 128 bytes, up to block size

+    2, dir_index:    htree directory index

+    3, filetype:     extra file mode in dentry

+    4, large_file:   > 4G files supported

+    5, sparse_super: super block backup in group descriptor

+    6, uninit_bg:    fast fsck and group checksum

+    7, extent:       full support with extending and shrinking.

+    8, journal:      only support replay for internal journal

+    9, flex_bg:      first flexible metadata group

+

+Unsupported Ext3/4 features:

+

+    1, journal: log-based operations, external journal

+    2, EA (extended attributes), ACL support

+    3, symlink creation

+

+Features to be implemented in next release:

+

+    1, Reparse point support (hardlink, symbolic link etc)

+    2, mounted as given user: privilege checking with given uid & gid

+

+WARNINGS:

+ 

+    The driver may crash your system and ruin your data unexpectedly,

+    since there might be software conflicts and I could only test it

+    on some of the popular platforms. You should use it with care and

+    use it at your own risk!

+

+Matt <mattwu@163.com>

+http://www.ext2fsd.com

diff --git a/Ext3Fsd/readme.txt b/Ext3Fsd/readme.txt
index ba9b52d..f1dbbfb 100755
--- a/Ext3Fsd/readme.txt
+++ b/Ext3Fsd/readme.txt
@@ -1,570 +1,596 @@
-======================
- About Ext2Fsd
-======================
-
-Ext2Fsd project is an ext2 file system driver for Windows (2000/2003/XP/7/8).
-
-It's a free software. Everyone can distribute and modify it under GNU GPLv2.
-
-======================
- Author & Homepage
-======================
-
-Matt<mattwu@163.com>
-http://www.ext2fsd.com
-
-
-======================
- Credits 
-======================
-
-Here, I owe all my thanks to Bo Branten<bosse@acc.umu.se> for his
-project romfs and his great contribution of the free version ntifs.h
-
-Everyone can get to him at http://www.acc.umu.se/~bosse/.
-
-
-======================
- Revision history
-======================
-
-44, V0.53:   2014-08-25
-
-Modifications from V0.52:
-
-    1, FIXME: BSOD with VHD/VHDX mounting on Win8
-    2, FIXME: Mke2fs failed to format mounted EXT2 volumes
-    3, Enable writing with global or volume ext3-force-writi
-    4, Support ext4 dir hash (UNSIGNED cases for legacy/half
-    5, Fixed several warnings reported by scan.coverity.com
-
-
-43, V0.52:   2014-05-10
-
-Modifications from V0.51:
-
-    1, Feature: Windows 8 supported
-    2, Feature: Force-writing supported
-    3, FIXME: data loss with TeraCopy when moving directories
-    4, FIXME: ATTO Disk Benchnmark fails with direct i/o tests
-    5, FIXME: files become invisible with empty hidden pattens
-    6, FIXME: possible hang with concurrent access attempts
-              upon the same file
-    7, FIXME: BSOD due to pagable code sections
-
-42, V0.51:   2011-07-10
-
-Modifications from V0.50:
-
-    1, FIXME: Data corruption issue, especially for multiple-thread
-       writing on XP system
-    2, FIXME: Set ValidDataLength only for FileEndOfFileInformation
-       w/ AdvanceOnly    
-    3, Support writing to ext4 volumes w/ flex_bg
-    4, Code cleanup and enhancement for global/volume property settings
-
-41, V0.50:   2011-02-01
-
-Modifications from V0.48:
-
-    1, Ext4 extent readonly support by Bo Branten. Writing is
-       possible but with no size-extending
-    2, Ext3 directory index (hash-tree) support
-    3, Fast fsck (uninit_bg) and group block checksum support
-    4, Ext4 64k block size support
-    5, Symlink/special inodes open/read/deletion support
-    6, Buffer head implemented over cache pages
-    7, Memory allocation optimization for flexible-size inodes
-    8, Improve file deletion: don't grab global lock when deleting
-    9, FIXME: return zero-content for sparse file gaps
-   10, FIXME: check available spaces before blocks allocation
-   11, FIXME: refresh stale root dir content after journal replay
-   12, FIXME: incompatible dentry management for 64k block size
-   13, FIXME: don't do journal replay for devices set as readonly
-   14, FIXME: Win7 cmd.exe always reports file sizes as zero
-   15, FIXME: Win7 memory throttling issue calling CcPinRead
-   16, FIXME: Ext3Fsd Build issues (SLIST/div64 for Win2k, browser files)
-   17, FIXME: Compiling test failure (fastio doesn't update i_size)
-   18, FIXME: Possible Mcb memory leak for symbolic links
-
-40, V0.48:   2009-07-26
-
-Modifications from V0.47:
-
-    1, Acronis TrueImage compatible issue solved:
-       Verified with Acronis True Image Home 2009. Also verified with
-       FreeOFTE 3.0, TrueCrypt 6.2a.
-    2, Driver code-signed for Vista and Server 2008
-    3, Code improvements for FastIo routines and drive letter & mount
-       points management
-
-39, V0.47:   2009-06-01
-
-Modifications from V0.46:
-
-    1, Bo Branten's 5+ patches merged, lots ifstest failures resolved
-    2, Mount point automatic assignment for USB key and other removable
-       disks or removable media devices
-
-38, V0.46:   2008-05-24
-
-Modifications from V0.46:
-
-    1, ext3 journal check and replay implemented. If the journal is
-       not empty ext2fsd will replay the journal and make the file
-       system consistent as an ext2 file system.
-    2, flexible-inode-size supported. recent Linux are using 256-byte
-       inode that fails 0.45 and before to show all the files.
-    3, FIXME: 2 minor issues that mislead EditPlus. EditPlus is always
-       trying to open any file with directory_only flag set to judge
-       whether the target is a directory or file, when the file isn't
-       a directory, the open request should be denied. But Ext2Fsd 0.45
-       and before doesn't. Another issue is that ext2 file time on disk
-       has different precision against windows (1 second vs 100 nano
-       second), which causes EditPlus thinks the file is being changed.
-    4, FIXME: a severe bug (likely happen on win2k system) which cause
-       dirty caches missed and slow down the whole system. 
-    5, many other minor changes: bulk block allocation/release, possible
-       inode allocation dead-loop when all inodes are used out, Ext2Mgr
-       win2k support, other performance improvements.
-
-37, V0.45:   2008-02-19
-
-Modifications from V0.44:
-
-    1, set hidden attribute for all files starting with "."
-    2, update cache window size when writing to file end
-    3, reaper resources allocated during file creation
-
-36, V0.44:   2008-02-09
-
-Modifications from V0.43:
-
-    1, Ext2Fsd: LastWriteTime/LastAccessTime update
-    2, Ext2Mgr: Show driver/app versions in About dialog
-
-35, V0.43:   2008-02-01
-
-Modifications from V0.42:
-
-    1, Ext2Fsd: hidden/system attribute handling
-    2, Ext2Mgr: Added manifest to cope with UAC
-
-34, V0.42:   2008-01-26
-
-Features implemented:
-    1, Mountpoint auto mount/removal supported for removable disks
-
-33, V0.41:   2008-01-25
-
-Modifications from V0.40:
-
-Bugs/Problems Fixed:
-
-    1,  Some files couldn't be shown in explorer with utf8 codepage
-    2,  System always pops "device is busy" when removing USB disks
-
-Features implemented:
-
-    1, Ext2Fsd: Updated codepage encodings to latest Linux kernel
-    2, Ext2Mgr: Added Chinese translation which is in high demand
-                Enhanced mountpoints management for removable devices
-
-32, V0.40:   2008-01-13
-
-Modifications from V0.39
-
-Bugs/Problems Fixed:
-
-    1,  Directory inode isn't freed after directory deletion
-    2,  Retrieval pointers implemented for extents mapping
-    3,  Correct the handling of STATUS_CANT_WAIT. Vista's Cache
-        Manager often fails us on PingRead when copying bunch of
-        files/directories from ext2 volumes, and thus it results
-        in zero-data-content in copied files
-    4,  Optimize space allocation to minimize fragments
-
-31, V0.39:   2008-01-09
-
-Modifications from V0.38
-
-  Bugs Fixed:
-
-    1, Disk space isn't released after deleting big files larger than
-       (BLOCK_SIZE * (12 + BLOCK_SIZE/4 + BLOCK_SIZE * BLOCK_SIZE / 16))
-       That's 4,299,210,752 in case BLOCK_SIZE is 4096.
-
-30, V0.38:   2008-01-04
-
-Modifications from V0.37
-
-  Bugs Fixed:
-
-     1, File block extents management improved to decrease CPU usage
-     2, Re-queue request when cache manager can't prepare pages in time
-     3, Possible deletion of it's hardlink entry when removing a file
-     4, Prohibit to create file with same names to dead symlinks
-     5, Wrong inode type in directory entry for symbol links
-     6, Possible memory leak when failed to overwrite file
-     7, Memory leak in Ext2FreeMcb, it's counted but not freed.
-     8, Possible loss of inode/dentry update: Ext2WriteVolume might
-        miss the dirty windows with SECTOR_SIZE aligned borders
-     9, SpinLock related routines shouldn't be resident in paged zone
-    10, Possible lost of files in directory listing
-
-29, V0.37:   2007-12-25
-
-  Bugs Fixed:
-
-      1, files >=4G couldn't be copy&paste to ext2 volume, caused by a hardcode
-         limit in Ext2CreateFile
-      2, failure of "No enough memory" when renaming files under directories
-         it likely happens when renaming files under subdirectory with Samba
-         or Linux kernel CIFS.
-      3, possible deadlock in renaming with simultaneous access on the same file
-      4, possible wrong entry (hardlinks) deletion instead of itself: it's
-         rare to happen but possible when renaming, moving or deleting files. 
-      5, entry management routines enhancement 
-      6, 64k-block support
-
-28, V0.36:   2007-12-22
-
-  Bugs Fixed:
-
-      1, BSOD caused by symlink pointing to itself or others
-      2, bug in new inode allocation algorithm 
-      3, "." and ".." are treated as separate inodes
-      4, remove unnecessary local variables to reduce stack
-         overflow chances especially for nested symlinks
-      5, overall optimizations on block allocation/release/mapping 
-      6, non-consistent Mcb reference issue (broken by symlinks)
-      7, memory leaks of BLOCK_DATA when expanding file
-      8, buffer overflow in Ext2Printf only for checked build
-      9, bug in handling exception of working cdroms ejection
-
-  Features Newly Implemented:
-
-      1, remove the execute bit ('x') for all newly created files 
-      2, enhance memory reaper mechanism of all Xcbs (Fcb/Mcb)
-      3, big block support (up to 32k) 
-      4, statistics of memory allocation / irp handling
-
-  Ext2 Volume Manager:
-
-      1, crash with RAW disk (non-partitioned)
-      2, wrong message box poped when setting service property
-      3, more partition types recognized
-      4, support memory/irp statistics
-      5, keyboard handling, as convenient as using mouse
-
-27, V0.35:   2007-12-02
-
-   Bugs Fixed:
-
-      1, Corrected change notification message for renaming
-      2, e2fsck i_size issue: Ext2SetInformation doesn't free
-         extra blocks when shrinking FileEndOfFileInformation
-      3, BSOD with symlink since it's treated as a file
-
-   Features Newly Implemented:
-
-      1, Symbolic link support on most operations but creating 
-      2, Property settings per volume, more flexible
-      3, Hiding files with specified prefix and suffix
-      4, Different implements on driver letter assignment
-      5, CDROM support to mount CD/DVD burned in EXT2 format
-      6, "Move and Replace (overwrite)" support
-      7, Install Ext2Mgr as a service
-
-26, V0.31A:  2007-01-06
-
-    Bugs/Problems Fixed:
-
-      1, Disable the partition type changing, which causes linux could not boot
-      2, Added the test-signature to AMD64 drivers for vista system
-
-25, V0.31:   2006-11-06
-
-   Bugs Fixed:
-
-      1, Wrong ERESOURCE referenced in Ext2DeleteFile
-      2, Stale path name referenced for directory notification
-      3, Codepage names inconsistent between Ext2Fsd and Ext2Mgr
-
-   Features Newly Implemented:
-
-      1, Vista supported 
-
-24, V0.30:   2006-10-21
-
-   Main Bugs Fixed:
-
-      1, Incorrect removable media support
-      2, Wrong file size, timestamps reporting
-      3, Some minor memory leaks 
-      4, Improper usage of ERESOURCE locking
-      5, Wrong handling of some special I/O
-      6, Incorrect codepage loading sequence
-      7, Mke2fs is much improved
-
-   Main Features Newly Supported:
-
-      1, Network sharing, Oplocks handling
-      2, Ext2 Volume Manager (codepage, attributes)
-
-23, V0.25:   2005-07-27
-
-    Bug Fixed:
-
-      1, File allocation blocks are not freed when being deleted
-      2, Other minor modifications on the program logics ...
-
-    Features Newly Supported:
-
-      1, Floppy support implemented. 
-      2, Win64 (X86 64) support.
-
-
-22, V0.24:   2005-03-28
-
-    Bug Fixed:
-
-      1, Codepage support errors fixed.
-      2, Ext2LookupFileName: should fail when it's not a real path.
-      3, Ext2FastIoQueryNetworkOpenInfo: Fcb not initialized.
-
-    Features Newly Supported:
-
-      1, Sparse file support. 
-      2, Setup and config tools by Jared Breland.
-
-
-21, V0.23:   2005-01-09
-
-    Bug Fixed:
-
-      1, Ext2ReadSync: Thread stack is paged out, which causes "Event" is invalid.
-      2, Ext2InitializeVcb: Ext2Global->McbList is referred before initializing.
-
-    Features Newly Supported:
-
-      1, Multi codepages supported
-        In registry, there's a new item named "CodePage", just change it to the
-        codepage name you want to use. The codepage name is the same to linux
-        system.
-
-        Here's the codepages list: 
-
-        big5    cp1251  cp1255  cp437   cp737   cp775   cp850   cp852   cp855
-        cp857   cp860   cp861   cp862   cp863   cp864   cp865   cp866   cp869
-        cp874   cp949   cp950   euc_jp  euc_kr  iso8859_1       iso8859_13 
-        iso8859_14  iso8859_15  iso8859_2   iso8859_3   iso8859_4   iso8859_5
-        iso8859_6   iso8859_7   iso8859_8   iso8859_9   koi8_r  koi8_ru koi8_u
-        sjis    tis_620 cp936   gb2312  utf8
-
-        If you don't specify it or make a wrong page type, system default OEM
-        codepage will be used.
-
-
-20, V0.22b:  2004-11-05
-
-    Bugs Fixed:
-      1, Deleting and copying files from/to a directory frequently corrupts
-         the directory. E2fsck will report "directory corrupted". This bug
-         is cuased by Ext2AddEntry.
-
-19, V0.22a:  2004-10-28
-
-    Bugs Fixed:
-      1, Fsck error reports: "inode is in use, but has dtime set." for
-         deleted directories. This bug caused by non-zero i_links_count
-         of deleted directory inode.
-      2, When many files (Normally > 255 files, reported by Zhoujingg)
-         are deleted, the dir entry may cross blocks, which will cause
-         ext2/ext3 driver could not correctly read the directory entries.
-
-18, V0.22:  2004-10-04
-
-    Bugs Fixed:
-      1, Mcb part overflows the stack
-      2, Delay-writing errors: cache lost
-      3, Bad file type for newly created files
-
-    Features Newly Supported:
-      1, Optimize the Mcb management part and the function of Ext2SaveGroup
-      2, Big files (> 4G) accessing
-
-17, V0.21:  2004-06-09
-
-    Bugs Fixed:
-      1, Ext2Flush does not complete the IRP for READ_ONLY mode.
-      2, Delayed close tries to refer completed Irps.
-      3, Directory content does NOT ends with zero-inode entry. Ext2ScanDir
-         and Ext2QueryDirectory do a wrong way to enum entries. Thanks to 
-         "Bomb" <bomb_hero@163.com>
-      4, Ext2MountVolume still returns STATUS_SUCCESS for non-ext2 volumes.
-      5, Ext2SetRenameInfo always treats "Rename" as "Move"
-
-    Features Newly Supported:
-      1, Various sector sizes support from 512 to 4096.
-      2, Compatible for windows nt 4.0.
-      3, Removable disk supported (CDROM is to be supported in next version.)
-      4, Volumes umounting works (Force dismount supported)...
-      5, Floppy partially support (NOT complete yet) ...
-      6, Add CheckingBitmap / Ext3ForceWriting parameter key in the registry
-      7, Quick format supported (directly access on mounted ext2 volumes.)
-
-16, V0.20:  2003-12-26
-      1, Merge Petr Borsodi's  patches for several problems.
-      2, Unicode/OEM characters support.?
-      3, Change notifications is supported.
-      4, Totally Optimize and upgrade.
-      5, ......
-
-15, V0.10A: 2003-01-14
-      1, FIXME: Deadlock caused by CcPurgeCacheSection for readonly volumes
-
-14, V0.10:  2003-01-03
-      1, Merge xjaguar's patch: Ext2NewInode and Ext2NewBlock fail on one
-         group ext2 system.
-      2, Merge Bo Branten's patch: Sync modifications of Romfs.
-      3, FIXME: Ext2Flush causes crash when shutting down. Thanks Petr Borsodi
-         for his clues.
-      4, FIXME: Crash when playing media files (mpg, wav ...)
-      5, ......
-
-13, V0.09A: 2002-08-03
-      1, Add mcb feature to keep cache coherence between volume and file
-         streams 
-      2, Skip "AdvacneOnly" when setting FileEndOfFileInformation.
-      3, Add file stream dirty flag in order to flush it when cleanup.
-      4, Some corrections of lock operations
-      5, Fix volume size reporting in Ext2QueryVolumeInformation
-
-12, V0.09: 2002-07-25
-      1, Fix some minor bugs
-      2, Redesign some internal architectures
-      3, Add writing support (Ext3 is not supported yet.)
-           1) File write.c: writing functions 
-           2) File flush.c: do flushing
-           3) File shutdown.c: prepare for system shutdown 
-           4) Many modifications in create.c/fileinfo.c/volinfo.c ...
-
-11, V0.08: 2002-05-28
-      1, Fix page-fault bsod when reading bad-size inodes
-      2, Fix a minor bug in Ext2GetBlock
-      3, Add binary-tree-mechanism to store the info of opened files
-
-10, V0.07A: 2002-05-17
-      1, Merge Boose's patch: make ext2fsd cooperating with his ntifs.h
-         (verion r36) and winxp ddk.
-      2, Fix wild-cases matching in Ext2QueryDirectory
-
- 9, V0.07: 2002-05-14
-      1, FIXME: only some minor bugs
-      2, Add access protection of some sharable members
-      3, Add booting start support
-      4, Change the driver's name to ext2fsd.sys
-
- 8, V0.06: 2002-03-12
-      1, FIXME: BSOD when playing wav/mpeg/avi with IE embedded media player.
-      2, Some optimizations in Ext2QueryDirectionary and Ext2ScanDir.
-
- 7, V0.05: 2002-03-01
-      1, FIXME: Ext2Create: Ext2ScanDir returns wrong fcb.
-      2, Support file executing now.
-
- 6, V0.04: 2002-02-20
-      1, Add caching support. 
-
- 5, V0.03: 2002-02
-      (It's an internal version, not released.)
-      1, Keep up with romfs: add byte-range lock and directory change
-         notification.
-
- 4, V0.02: 2002-02-07
-      1, Add large ext2 partition support. 
-
- 3, V0.01: 2002-01-26
-      1, Make it public at http://www.ext2fsd.com.
-
- 2, 2001-10
-      1, Non-public pre-release of ext2fsd was born.
-
- 1, 2001-08
-      1, I began the journey of file system driver developing with romfs
-
-
-======================
- Bugs
-======================
-
-(Nobody can expect that ext2fsd is bug-free.)
-Any bugs, please mail to me.
-
-
-======================
- How to install
-======================
-
-1, Build this project, and ext2fsd.sys will be created.
-2, Copy ext2fsd.sys to %system32%\drivers.
-3, Import the ext2fsd.reg into your system registry.
-4, After rebooting your machine, run "net start ext2fsd" at a dos shell.
-5, Use mount/unmount tools to mount or unmount a disk partition.
-6, You can unload ext2fsd from system with unload tool.
-
-After version 0.10, these is an easy way:
-
-1, Just run "Setup.bat" in "Setup" subdir for the first time. Then just
-   run "net start ext2fsd" in a dos shell to start the driver.
-
-      After v0.23, you need specify your system version:
-
-        setup 2k: to install ext2fsd for windows 200
-        setup xp: to install ext2fsd for windows xp
-
-
-2, Then you can mount the ext2 partitions without rebooting.
-
-
-======================
- How to uninstall
-======================
-
-1, Just run uninstall.bat in the Ext2Fsd.zip package.
-   .OR.
-2, Use the "Add/Remove Programs" in "Control Panel", click the item of
-   "linux ext2 file system driver" to remove the program.
-   .OR.
-3, Manually remove the ext2fsd projects files. 
-   a) Remove the registry: HKLM\...\Ext2Fsd & Uninstall ...
-   b) Remove Mount.exe/Mke2fs.exe from $(SystemRoot)\system32
-   c) Remove Ext2Fsd.sys from $(SystemRoot)\system32\drivers
-   d) Remove ext2fsd.inf from $(SystemRoot)\inf
-
-
-======================
- Writing support
-======================
-
-Two ways are optional to enable writing support.
-
-1, Change the value of "Parameters\WritingSupport" in ext2fsd.reg to 1, then
-   import the reg file into system registry.
-   Or modify the registry directly. Like this:
-
-   -------------------------------------------------------------------------
-   [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Ext2Fsd\Parameters]
-   "WritingSupport"=dword:00000001
-   -------------------------------------------------------------------------
-
-   Notes: Reboot is need.
-
-   Or
-
-2, Change the definition of EXT2_READ_ONLY to 0, and recompile ext2fsd, then
-   overwrite the original one. (See line 27 in ext2fs.h)
-
-
-Please refer FAQ.txt for more information.
+======================

+ About Ext2Fsd

+======================

+

+Ext2Fsd project is an ext2 file system driver for Windows (2000/2003/XP/7/8).

+

+It's a free software. Everyone can distribute and modify it under GNU GPLv2.

+

+======================

+ Author & Homepage

+======================

+

+Matt<mattwu@163.com>

+http://www.ext2fsd.com

+

+

+======================

+ Credits 

+======================

+

+Here, I owe all my thanks to Bo Branten<bosse@acc.umu.se> for his

+project romfs and his great contribution of the free version ntifs.h

+

+Everyone can get to him at http://www.acc.umu.se/~bosse/.

+

+

+======================

+ Revision history

+======================

+

+45, V0.60:   2015-06-01

+

+Modifications from V0.53:

+

+

+    1, Ext4 extent writing support (developed by ngkaho1234 @ gmail.com)

+       See his repository for more details:

+       http://github.com/ngkaho1234/Ext3Fsd.git

+    2, Size manipulation and i/o path revised for support of indirect and

+       extent-based mappings

+    3, 16T volume supported (tested and confirmed with 4T volume)

+       Version 0.53 and previous versions only support up to 2T volume

+       ticket: https://sourceforge.net/p/ext2fsd/bugs/134/

+    4, Deletion acceleration: truncation optimized for indirect-based files

+    5, Size-expanding disabled in IRP_MJ_CREATE for better performance.

+       Windows sometimes would truncate file size back to 0

+    6, Support Volume exclusive-open for e2fsprogs utils. Any attempts

+       will be denied while EXT4 volume is being checked (e2fsck).

+    7, FIXME:  Possible zero-content returned (requesting data from file tail)

+    8, FIXME:  File ByteOffset updated for FO_SYNCHRONOUS_IO open (async i/o)

+       ticket: https://sourceforge.net/p/ext2fsd/bugs/133/

+    9, FIXME:  don't do byte or range round up for paging i/o requests

+       ticket: https://sourceforge.net/p/ext2fsd/bugs/129/

+   10, FIXME:  occasional block bitmap difference issue, cased by checksum

+               caculation in uninit_bg group initializing

+

+44, V0.53:   2014-08-25

+

+Modifications from V0.52:

+

+    1, FIXME: BSOD with VHD/VHDX mounting on Win8

+    2, FIXME: Mke2fs failed to format mounted EXT2 volumes

+    3, Enable writing with global or volume ext3-force-writi

+    4, Support ext4 dir hash (UNSIGNED cases for legacy/half

+    5, Fixed several warnings reported by scan.coverity.com

+

+

+43, V0.52:   2014-05-10

+

+Modifications from V0.51:

+

+    1, Feature: Windows 8 supported

+    2, Feature: Force-writing supported

+    3, FIXME: data loss with TeraCopy when moving directories

+    4, FIXME: ATTO Disk Benchnmark fails with direct i/o tests

+    5, FIXME: files become invisible with empty hidden pattens

+    6, FIXME: possible hang with concurrent access attempts

+              upon the same file

+    7, FIXME: BSOD due to pagable code sections

+

+42, V0.51:   2011-07-10

+

+Modifications from V0.50:

+

+    1, FIXME: Data corruption issue, especially for multiple-thread

+       writing on XP system

+    2, FIXME: Set ValidDataLength only for FileEndOfFileInformation

+       w/ AdvanceOnly    

+    3, Support writing to ext4 volumes w/ flex_bg

+    4, Code cleanup and enhancement for global/volume property settings

+

+41, V0.50:   2011-02-01

+

+Modifications from V0.48:

+

+    1, Ext4 extent readonly support by Bo Branten. Writing is

+       possible but with no size-extending

+    2, Ext3 directory index (hash-tree) support

+    3, Fast fsck (uninit_bg) and group block checksum support

+    4, Ext4 64k block size support

+    5, Symlink/special inodes open/read/deletion support

+    6, Buffer head implemented over cache pages

+    7, Memory allocation optimization for flexible-size inodes

+    8, Improve file deletion: don't grab global lock when deleting

+    9, FIXME: return zero-content for sparse file gaps

+   10, FIXME: check available spaces before blocks allocation

+   11, FIXME: refresh stale root dir content after journal replay

+   12, FIXME: incompatible dentry management for 64k block size

+   13, FIXME: don't do journal replay for devices set as readonly

+   14, FIXME: Win7 cmd.exe always reports file sizes as zero

+   15, FIXME: Win7 memory throttling issue calling CcPinRead

+   16, FIXME: Ext3Fsd Build issues (SLIST/div64 for Win2k, browser files)

+   17, FIXME: Compiling test failure (fastio doesn't update i_size)

+   18, FIXME: Possible Mcb memory leak for symbolic links

+

+40, V0.48:   2009-07-26

+

+Modifications from V0.47:

+

+    1, Acronis TrueImage compatible issue solved:

+       Verified with Acronis True Image Home 2009. Also verified with

+       FreeOFTE 3.0, TrueCrypt 6.2a.

+    2, Driver code-signed for Vista and Server 2008

+    3, Code improvements for FastIo routines and drive letter & mount

+       points management

+

+39, V0.47:   2009-06-01

+

+Modifications from V0.46:

+

+    1, Bo Branten's 5+ patches merged, lots ifstest failures resolved

+    2, Mount point automatic assignment for USB key and other removable

+       disks or removable media devices

+

+38, V0.46:   2008-05-24

+

+Modifications from V0.46:

+

+    1, ext3 journal check and replay implemented. If the journal is

+       not empty ext2fsd will replay the journal and make the file

+       system consistent as an ext2 file system.

+    2, flexible-inode-size supported. recent Linux are using 256-byte

+       inode that fails 0.45 and before to show all the files.

+    3, FIXME: 2 minor issues that mislead EditPlus. EditPlus is always

+       trying to open any file with directory_only flag set to judge

+       whether the target is a directory or file, when the file isn't

+       a directory, the open request should be denied. But Ext2Fsd 0.45

+       and before doesn't. Another issue is that ext2 file time on disk

+       has different precision against windows (1 second vs 100 nano

+       second), which causes EditPlus thinks the file is being changed.

+    4, FIXME: a severe bug (likely happen on win2k system) which cause

+       dirty caches missed and slow down the whole system. 

+    5, many other minor changes: bulk block allocation/release, possible

+       inode allocation dead-loop when all inodes are used out, Ext2Mgr

+       win2k support, other performance improvements.

+

+37, V0.45:   2008-02-19

+

+Modifications from V0.44:

+

+    1, set hidden attribute for all files starting with "."

+    2, update cache window size when writing to file end

+    3, reaper resources allocated during file creation

+

+36, V0.44:   2008-02-09

+

+Modifications from V0.43:

+

+    1, Ext2Fsd: LastWriteTime/LastAccessTime update

+    2, Ext2Mgr: Show driver/app versions in About dialog

+

+35, V0.43:   2008-02-01

+

+Modifications from V0.42:

+

+    1, Ext2Fsd: hidden/system attribute handling

+    2, Ext2Mgr: Added manifest to cope with UAC

+

+34, V0.42:   2008-01-26

+

+Features implemented:

+    1, Mountpoint auto mount/removal supported for removable disks

+

+33, V0.41:   2008-01-25

+

+Modifications from V0.40:

+

+Bugs/Problems Fixed:

+

+    1,  Some files couldn't be shown in explorer with utf8 codepage

+    2,  System always pops "device is busy" when removing USB disks

+

+Features implemented:

+

+    1, Ext2Fsd: Updated codepage encodings to latest Linux kernel

+    2, Ext2Mgr: Added Chinese translation which is in high demand

+                Enhanced mountpoints management for removable devices

+

+32, V0.40:   2008-01-13

+

+Modifications from V0.39

+

+Bugs/Problems Fixed:

+

+    1,  Directory inode isn't freed after directory deletion

+    2,  Retrieval pointers implemented for extents mapping

+    3,  Correct the handling of STATUS_CANT_WAIT. Vista's Cache

+        Manager often fails us on PingRead when copying bunch of

+        files/directories from ext2 volumes, and thus it results

+        in zero-data-content in copied files

+    4,  Optimize space allocation to minimize fragments

+

+31, V0.39:   2008-01-09

+

+Modifications from V0.38

+

+  Bugs Fixed:

+

+    1, Disk space isn't released after deleting big files larger than

+       (BLOCK_SIZE * (12 + BLOCK_SIZE/4 + BLOCK_SIZE * BLOCK_SIZE / 16))

+       That's 4,299,210,752 in case BLOCK_SIZE is 4096.

+

+30, V0.38:   2008-01-04

+

+Modifications from V0.37

+

+  Bugs Fixed:

+

+     1, File block extents management improved to decrease CPU usage

+     2, Re-queue request when cache manager can't prepare pages in time

+     3, Possible deletion of it's hardlink entry when removing a file

+     4, Prohibit to create file with same names to dead symlinks

+     5, Wrong inode type in directory entry for symbol links

+     6, Possible memory leak when failed to overwrite file

+     7, Memory leak in Ext2FreeMcb, it's counted but not freed.

+     8, Possible loss of inode/dentry update: Ext2WriteVolume might

+        miss the dirty windows with SECTOR_SIZE aligned borders

+     9, SpinLock related routines shouldn't be resident in paged zone

+    10, Possible lost of files in directory listing

+

+29, V0.37:   2007-12-25

+

+  Bugs Fixed:

+

+      1, files >=4G couldn't be copy&paste to ext2 volume, caused by a hardcode

+         limit in Ext2CreateFile

+      2, failure of "No enough memory" when renaming files under directories

+         it likely happens when renaming files under subdirectory with Samba

+         or Linux kernel CIFS.

+      3, possible deadlock in renaming with simultaneous access on the same file

+      4, possible wrong entry (hardlinks) deletion instead of itself: it's

+         rare to happen but possible when renaming, moving or deleting files. 

+      5, entry management routines enhancement 

+      6, 64k-block support

+

+28, V0.36:   2007-12-22

+

+  Bugs Fixed:

+

+      1, BSOD caused by symlink pointing to itself or others

+      2, bug in new inode allocation algorithm 

+      3, "." and ".." are treated as separate inodes

+      4, remove unnecessary local variables to reduce stack

+         overflow chances especially for nested symlinks

+      5, overall optimizations on block allocation/release/mapping 

+      6, non-consistent Mcb reference issue (broken by symlinks)

+      7, memory leaks of BLOCK_DATA when expanding file

+      8, buffer overflow in Ext2Printf only for checked build

+      9, bug in handling exception of working cdroms ejection

+

+  Features Newly Implemented:

+

+      1, remove the execute bit ('x') for all newly created files 

+      2, enhance memory reaper mechanism of all Xcbs (Fcb/Mcb)

+      3, big block support (up to 32k) 

+      4, statistics of memory allocation / irp handling

+

+  Ext2 Volume Manager:

+

+      1, crash with RAW disk (non-partitioned)

+      2, wrong message box poped when setting service property

+      3, more partition types recognized

+      4, support memory/irp statistics

+      5, keyboard handling, as convenient as using mouse

+

+27, V0.35:   2007-12-02

+

+   Bugs Fixed:

+

+      1, Corrected change notification message for renaming

+      2, e2fsck i_size issue: Ext2SetInformation doesn't free

+         extra blocks when shrinking FileEndOfFileInformation

+      3, BSOD with symlink since it's treated as a file

+

+   Features Newly Implemented:

+

+      1, Symbolic link support on most operations but creating 

+      2, Property settings per volume, more flexible

+      3, Hiding files with specified prefix and suffix

+      4, Different implements on driver letter assignment

+      5, CDROM support to mount CD/DVD burned in EXT2 format

+      6, "Move and Replace (overwrite)" support

+      7, Install Ext2Mgr as a service

+

+26, V0.31A:  2007-01-06

+

+    Bugs/Problems Fixed:

+

+      1, Disable the partition type changing, which causes linux could not boot

+      2, Added the test-signature to AMD64 drivers for vista system

+

+25, V0.31:   2006-11-06

+

+   Bugs Fixed:

+

+      1, Wrong ERESOURCE referenced in Ext2DeleteFile

+      2, Stale path name referenced for directory notification

+      3, Codepage names inconsistent between Ext2Fsd and Ext2Mgr

+

+   Features Newly Implemented:

+

+      1, Vista supported 

+

+24, V0.30:   2006-10-21

+

+   Main Bugs Fixed:

+

+      1, Incorrect removable media support

+      2, Wrong file size, timestamps reporting

+      3, Some minor memory leaks 

+      4, Improper usage of ERESOURCE locking

+      5, Wrong handling of some special I/O

+      6, Incorrect codepage loading sequence

+      7, Mke2fs is much improved

+

+   Main Features Newly Supported:

+

+      1, Network sharing, Oplocks handling

+      2, Ext2 Volume Manager (codepage, attributes)

+

+23, V0.25:   2005-07-27

+

+    Bug Fixed:

+

+      1, File allocation blocks are not freed when being deleted

+      2, Other minor modifications on the program logics ...

+

+    Features Newly Supported:

+

+      1, Floppy support implemented. 

+      2, Win64 (X86 64) support.

+

+

+22, V0.24:   2005-03-28

+

+    Bug Fixed:

+

+      1, Codepage support errors fixed.

+      2, Ext2LookupFileName: should fail when it's not a real path.

+      3, Ext2FastIoQueryNetworkOpenInfo: Fcb not initialized.

+

+    Features Newly Supported:

+

+      1, Sparse file support. 

+      2, Setup and config tools by Jared Breland.

+

+

+21, V0.23:   2005-01-09

+

+    Bug Fixed:

+

+      1, Ext2ReadSync: Thread stack is paged out, which causes "Event" is invalid.

+      2, Ext2InitializeVcb: Ext2Global->McbList is referred before initializing.

+

+    Features Newly Supported:

+

+      1, Multi codepages supported

+        In registry, there's a new item named "CodePage", just change it to the

+        codepage name you want to use. The codepage name is the same to linux

+        system.

+

+        Here's the codepages list: 

+

+        big5    cp1251  cp1255  cp437   cp737   cp775   cp850   cp852   cp855

+        cp857   cp860   cp861   cp862   cp863   cp864   cp865   cp866   cp869

+        cp874   cp949   cp950   euc_jp  euc_kr  iso8859_1       iso8859_13 

+        iso8859_14  iso8859_15  iso8859_2   iso8859_3   iso8859_4   iso8859_5

+        iso8859_6   iso8859_7   iso8859_8   iso8859_9   koi8_r  koi8_ru koi8_u

+        sjis    tis_620 cp936   gb2312  utf8

+

+        If you don't specify it or make a wrong page type, system default OEM

+        codepage will be used.

+

+

+20, V0.22b:  2004-11-05

+

+    Bugs Fixed:

+      1, Deleting and copying files from/to a directory frequently corrupts

+         the directory. E2fsck will report "directory corrupted". This bug

+         is cuased by Ext2AddEntry.

+

+19, V0.22a:  2004-10-28

+

+    Bugs Fixed:

+      1, Fsck error reports: "inode is in use, but has dtime set." for

+         deleted directories. This bug caused by non-zero i_links_count

+         of deleted directory inode.

+      2, When many files (Normally > 255 files, reported by Zhoujingg)

+         are deleted, the dir entry may cross blocks, which will cause

+         ext2/ext3 driver could not correctly read the directory entries.

+

+18, V0.22:  2004-10-04

+

+    Bugs Fixed:

+      1, Mcb part overflows the stack

+      2, Delay-writing errors: cache lost

+      3, Bad file type for newly created files

+

+    Features Newly Supported:

+      1, Optimize the Mcb management part and the function of Ext2SaveGroup

+      2, Big files (> 4G) accessing

+

+17, V0.21:  2004-06-09

+

+    Bugs Fixed:

+      1, Ext2Flush does not complete the IRP for READ_ONLY mode.

+      2, Delayed close tries to refer completed Irps.

+      3, Directory content does NOT ends with zero-inode entry. Ext2ScanDir

+         and Ext2QueryDirectory do a wrong way to enum entries. Thanks to 

+         "Bomb" <bomb_hero@163.com>

+      4, Ext2MountVolume still returns STATUS_SUCCESS for non-ext2 volumes.

+      5, Ext2SetRenameInfo always treats "Rename" as "Move"

+

+    Features Newly Supported:

+      1, Various sector sizes support from 512 to 4096.

+      2, Compatible for windows nt 4.0.

+      3, Removable disk supported (CDROM is to be supported in next version.)

+      4, Volumes umounting works (Force dismount supported)...

+      5, Floppy partially support (NOT complete yet) ...

+      6, Add CheckingBitmap / Ext3ForceWriting parameter key in the registry

+      7, Quick format supported (directly access on mounted ext2 volumes.)

+

+16, V0.20:  2003-12-26

+      1, Merge Petr Borsodi's  patches for several problems.

+      2, Unicode/OEM characters support.?

+      3, Change notifications is supported.

+      4, Totally Optimize and upgrade.

+      5, ......

+

+15, V0.10A: 2003-01-14

+      1, FIXME: Deadlock caused by CcPurgeCacheSection for readonly volumes

+

+14, V0.10:  2003-01-03

+      1, Merge xjaguar's patch: Ext2NewInode and Ext2NewBlock fail on one

+         group ext2 system.

+      2, Merge Bo Branten's patch: Sync modifications of Romfs.

+      3, FIXME: Ext2Flush causes crash when shutting down. Thanks Petr Borsodi

+         for his clues.

+      4, FIXME: Crash when playing media files (mpg, wav ...)

+      5, ......

+

+13, V0.09A: 2002-08-03

+      1, Add mcb feature to keep cache coherence between volume and file

+         streams 

+      2, Skip "AdvacneOnly" when setting FileEndOfFileInformation.

+      3, Add file stream dirty flag in order to flush it when cleanup.

+      4, Some corrections of lock operations

+      5, Fix volume size reporting in Ext2QueryVolumeInformation

+

+12, V0.09: 2002-07-25

+      1, Fix some minor bugs

+      2, Redesign some internal architectures

+      3, Add writing support (Ext3 is not supported yet.)

+           1) File write.c: writing functions 

+           2) File flush.c: do flushing

+           3) File shutdown.c: prepare for system shutdown 

+           4) Many modifications in create.c/fileinfo.c/volinfo.c ...

+

+11, V0.08: 2002-05-28

+      1, Fix page-fault bsod when reading bad-size inodes

+      2, Fix a minor bug in Ext2GetBlock

+      3, Add binary-tree-mechanism to store the info of opened files

+

+10, V0.07A: 2002-05-17

+      1, Merge Boose's patch: make ext2fsd cooperating with his ntifs.h

+         (verion r36) and winxp ddk.

+      2, Fix wild-cases matching in Ext2QueryDirectory

+

+ 9, V0.07: 2002-05-14

+      1, FIXME: only some minor bugs

+      2, Add access protection of some sharable members

+      3, Add booting start support

+      4, Change the driver's name to ext2fsd.sys

+

+ 8, V0.06: 2002-03-12

+      1, FIXME: BSOD when playing wav/mpeg/avi with IE embedded media player.

+      2, Some optimizations in Ext2QueryDirectionary and Ext2ScanDir.

+

+ 7, V0.05: 2002-03-01

+      1, FIXME: Ext2Create: Ext2ScanDir returns wrong fcb.

+      2, Support file executing now.

+

+ 6, V0.04: 2002-02-20

+      1, Add caching support. 

+

+ 5, V0.03: 2002-02

+      (It's an internal version, not released.)

+      1, Keep up with romfs: add byte-range lock and directory change

+         notification.

+

+ 4, V0.02: 2002-02-07

+      1, Add large ext2 partition support. 

+

+ 3, V0.01: 2002-01-26

+      1, Make it public at http://www.ext2fsd.com.

+

+ 2, 2001-10

+      1, Non-public pre-release of ext2fsd was born.

+

+ 1, 2001-08

+      1, I began the journey of file system driver developing with romfs

+

+

+======================

+ Bugs

+======================

+

+(Nobody can expect that ext2fsd is bug-free.)

+Any bugs, please mail to me.

+

+

+======================

+ How to install

+======================

+

+1, Build this project, and ext2fsd.sys will be created.

+2, Copy ext2fsd.sys to %system32%\drivers.

+3, Import the ext2fsd.reg into your system registry.

+4, After rebooting your machine, run "net start ext2fsd" at a dos shell.

+5, Use mount/unmount tools to mount or unmount a disk partition.

+6, You can unload ext2fsd from system with unload tool.

+

+After version 0.10, these is an easy way:

+

+1, Just run "Setup.bat" in "Setup" subdir for the first time. Then just

+   run "net start ext2fsd" in a dos shell to start the driver.

+

+      After v0.23, you need specify your system version:

+

+        setup 2k: to install ext2fsd for windows 200

+        setup xp: to install ext2fsd for windows xp

+

+

+2, Then you can mount the ext2 partitions without rebooting.

+

+

+======================

+ How to uninstall

+======================

+

+1, Just run uninstall.bat in the Ext2Fsd.zip package.

+   .OR.

+2, Use the "Add/Remove Programs" in "Control Panel", click the item of

+   "linux ext2 file system driver" to remove the program.

+   .OR.

+3, Manually remove the ext2fsd projects files. 

+   a) Remove the registry: HKLM\...\Ext2Fsd & Uninstall ...

+   b) Remove Mount.exe/Mke2fs.exe from $(SystemRoot)\system32

+   c) Remove Ext2Fsd.sys from $(SystemRoot)\system32\drivers

+   d) Remove ext2fsd.inf from $(SystemRoot)\inf

+

+

+======================

+ Writing support

+======================

+

+Two ways are optional to enable writing support.

+

+1, Change the value of "Parameters\WritingSupport" in ext2fsd.reg to 1, then

+   import the reg file into system registry.

+   Or modify the registry directly. Like this:

+

+   -------------------------------------------------------------------------

+   [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Ext2Fsd\Parameters]

+   "WritingSupport"=dword:00000001

+   -------------------------------------------------------------------------

+

+   Notes: Reboot is need.

+

+   Or

+

+2, Change the definition of EXT2_READ_ONLY to 0, and recompile ext2fsd, then

+   overwrite the original one. (See line 27 in ext2fs.h)

+

+

+Please refer FAQ.txt for more information.