==================================
Release Notes for Ext2Fsd V0.52
==================================
Features implemented and bugfix since 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 section
Supported Ext3/4 features by 0.52:
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 future:
1, EXT3/4 features support (extents, journal)
2, Documents improvement: clear and elaborate
3, Performance improvement, code optimization
4, Automatic check & update of new versions
5, LVM support, e2fsprogs porting for Windows
Files descriptions:
Ext2Fsd-0.52.exe: setup wizard for Windows systems (Win2k, Winxp,
Vista, Win7, Win8, Server 2003, Server 2008/R2)
Ext2Fsd-0.52.7z: Batch setup package in 7-zip
Ext2Fsd-0.52.zip: Batch setup package in zip
Ext2Fsd-0.52.src.7z: Source codes of Ext3Fsd and Ext2Mgr in 7-zip
Ext2Fsd-0.52.src.zip: Source codes of Ext3Fsd and Ext2Mgr in zip
Download link:
http://sourceforge.net/projects/ext2fsd/files/Ext2fsd/0.52/
Files checksum:
C:\Works\Ext2fsd\0.52>sha1sum Ext2Fsd-0.52*
8921c8a8bc57e46f8775836359d8868437e8e857 *Ext2Fsd-0.52.7z
5a83af60fc2773feacb241dd68532075f6a74f1e *Ext2Fsd-0.52.exe
0fba60af536ca8edd0c7951433a6916ab4f0042b *Ext2Fsd-0.52.src.7z
0eed9235a845449e5e3d0fa0139182a78c2ecfb0 *Ext2Fsd-0.52.src.zip
d4d1a416409645dc27a328bf1acd44ebd669f671 *Ext2Fsd-0.52.zip
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>https://www.ext2fsd.com
Great news. Thanks for continuing to maintain this driver 🙂
Ben H.
15 May 14 at 4:55 am
WHERE WAS YOU ALL THESE YEARS…
Thank you!
nexfwall
16 May 14 at 10:28 pm
“Features implemented and bugfix since V0.52:”
Isn’t it v0.51?
anonymous
19 May 14 at 4:15 am
Thank you for the update! I was using this for my Gentoo/Windows7 dual boot, and I had to upgrade to Windows 8.
RealNC
19 May 14 at 5:18 am
This is awseome! Good to see this project is still alive.
michan
21 May 14 at 8:01 am
With the old version, I had no problem for full read/write on EXT3 volume. After upgrading, I could not create new files, despite rwx rights for all users. Why?
milasudril
22 May 14 at 4:29 pm
1, Have you enabled global “EXT3-force-writing” ? With Ext2Mgr, select “Tools”, and click “Service Management”, then clear the Readonly flag and check “Enable writing support for ext3 volumes”.
2, Check whether your ext3 volume has features that Ext3Fsd couldn’t support. Do “tune2fs -l” upon your ext3 volume in Linux or with the Windows version of e2fsprogs: http://ext2fsd.com/ext2fsd/e2fsprogs-1.40.6.zip
Matt
22 May 14 at 8:02 pm
1. I can write to existing files.
2. Here is dump from tune2fs:
tune2fs 1.40.6 (09-Feb-2008)
Filesystem volume name:
Last mounted on: /home
Filesystem UUID: cc55fe22-6054-4981-b277-dd91b01b9642
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype sparse_super large_file
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 52346880
Block count: 209356288
Reserved block count: 10467814
Free blocks: 170964348
Free inodes: 51937820
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 974
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Filesystem created: Mon Apr 1 21:06:59 2013
Last mount time: Thu May 22 09:39:37 2014
Last write time: Thu May 22 09:49:23 2014
Mount count: 2198
Maximum mount count: -1
Last checked: Mon Apr 1 21:06:59 2013
Check interval: 0 ()
Reserved blocks uid: 0 (user unknown)
Reserved blocks gid: 0 (group unknown)
First inode: 11
Inode size: 256
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: 81f59ef5-027c-4b6d-9fbc-014e0483994a
Journal backup: inode blocks
As said version 0.51 seems to work fine with that volume.
milasudril
23 May 14 at 12:51 am
One possibility is the parent directory where you are trying to create new files is extent-based and all slots (space) are just running out. Current Ext3Fsd doesn’t support size-extending for extent-based files, thus you can not add new entries.
Have you tried creating new file in the other directory ? Could it work ?
Matt
24 May 14 at 11:16 am
Everything works with 0.51. Creating file anywhere broke when upgrading the driver. If it is a bug in 0.51 that results in possible data corruption (have not seen any), can I make it work properly with 0.52?
milasudril
24 May 14 at 7:33 pm
What’s the owner’s (root) permission of the directory ? Ext2Fsd 0.52 checks the file owner’s permission, rather than group or other permissions. You could do a “chmod u+w … ” to verify.
I uploaded a new version of Ext2Fsd. It can override user permission with ext3-force-writing specified. Here’s the download url:
〈You need manually extract the Ext2Fsd.sys and overwrite the original one at %SYSTEMROOT%\system32\drivers\.〉
http://www.ext2fsd.com/ext2fsd/Ext2Fsd-0.53pre.zip
sha1sum:
8e90d0cda27f561e61cfffbecb38b302eb80b131 Ext2Fsd-0.53pre.zip
Matt
25 May 14 at 6:18 pm
drwxr-xr-x 15 root root 4096 maj 23 18:53 home
The directory I tried to create the file in
drwxrwxrwx 158 torbjorr torbjorr 20480 maj 26 08:46 torbjorr
drwxr-xrwx 8 torbjorr torbjorr 4096 maj 25 08:28 /home/torbjorr/Skrivbord/
Speaking of file permissions: It would be good to be able to map windows users to the corresponding linux user.
milasudril
26 May 14 at 2:55 pm
How’s the result with new version ? Had a try ? Next version I will add uid/gid support.
Matt
30 May 14 at 4:19 pm
What time to support LVM?
Wu
7 Aug 14 at 2:07 pm
Same problem here, previous version had this problem too but not as often as now.
Sergey
14 Jul 14 at 1:43 am
Great news that you have updated the driver. Thanks for your work Matt!
Bo Branten
25 May 14 at 4:03 am
Hi Bo, glad to hear from you 🙂
Matt
25 May 14 at 6:21 pm
Just tried this on win7. it detected ext4 but win7 could not read them. system froze when I attempted to “reload and refresh”. Trying to force reboot, now windows is unbootable. The windows logo is freezing while “starting windows”.
Dr J
25 May 14 at 1:29 pm
more info: I specified the service to run manually, not on startup. I can boot if no ext4 patition disks are plugged in.
I am uninstalling the ext2fsd from the uninstall menu in the control panel, hopefully this will remove any trace of ext2fsd
Dr J
25 May 14 at 1:34 pm
Sorry for the inconvenience. Seems there are compatibility issues. Could you provide more information about your system ? OS version ? Which antivirus ?
Matt
25 May 14 at 6:27 pm
I will try my best, this may be a unique software or hardware situation.
I use an Asus Motherboard with nvraid. Disks are all WD SATA2 (1x) + Raid0 Sata2 (2x).
I added one more WD Green 2TB with linux ext4 partitions on it (created by redobackup)
OS: Windows 7 Ultimate, latest updates
Antivirus: Eset
Steps:
1) Installing disk
2) Installing ext2fsd, manual start of the service, not rebooting after installation
3) opening ext2fsd, the partition desired is mapped to F:
4) Windows explorer can’t open F: saying it is unusable and asking to format the disk
5) Trying a reboot, windows is stuck during boot
6) Removing the ext4 disk, I’m able to boot, but system experiences hangups
7) Uninstall ext2fsd, reboot
8) back to normal, but some slowness still present if I reboot with the disk in position 1 of the sata controller. I use position 5 or 6 then it is fine
9) using another product from sysinternals I can access my files on the disk
This may have been an incident caused by a bad SATA cable? it is hard to tell. If you need more info let me know
Dr J
25 May 14 at 6:41 pm
I’ll try redobackup to verify. My testings with 2TB volume (in EXT4) passed.
Matt
30 May 14 at 4:22 pm
I mount my ext3 drives as read-only, does this mean I can now upgrade it to ext4 and use the extents, uninit_bg, and dir_index features?
Kabili
28 May 14 at 9:06 am
Yes. Ext2Fsd could read ext4 extents, but not for writing.
Matt
30 May 14 at 4:23 pm
Matt, thanks a 1M! (For all the previous ext2fd versions, too!)
About symlinks: I guess lots of us are interested in the rationale, why it’s not even planned, (considering that e.g. NTFS supports that, at least from Vista (and even XP, with some help), so compatible user-level semantics to map the ext symlinks seems to be available).
Can you please tell us about the main obstacles?
Szabolcs Szasz
29 May 14 at 6:12 am
No obstacles in technology. I’m working on EXT4 extent writing support right now. I’ll consider symlink support after next version.
symlink implementation will affect all the pathes of meta-operations. Gonna take some time.
Matt
30 May 14 at 4:38 pm
Thank you VERY much for this utility. I’m a graphic designer – and have NO idea what any of the previous comments are talking about. BUT… I recently upgraded to a Windows 8 computer system, and all of my client file backups were on a generation-2 Drobo unit with Ext3 file system. The unit showed up in the Drobo Dashboard utility, but didn’t show up in the Windows 8 File Explorer. Thinking I would “help” my new win8 setup, I ran all the pending firmware and software updates available, but in the end couldn’t get access to my Drobo drives / files. Thanks to this Ext2Fsd, I can now read / write just as before. Again, thanks for writing, supporting, and updating this little system utility.
Kevin
16 Jun 14 at 10:29 pm
I tried to make a donation, but PayPal says the account can only receive payments made from China. If you can figure out why that’s happening and fix it, please let me know…
Kevin
16 Jun 14 at 10:32 pm
I tried to contact Paypal and they told me my account is okay (in perfect condition, as they said). Don’t know what happened. Could you give me more info ?
Thank you much for the donation and letting me know of the Paypal issue.
Matt
14 Jul 14 at 7:26 pm
Thanks so much! This version has force-write on startup, which I so appreciate.
johnnycoconut
18 Jun 14 at 9:31 am
And fixed-disk partition mounting on bootup works so much better now too! Thanks! (By the way, I’m using the 0.53pre you posted earlier in this thread.)
johnnycoconut
18 Jun 14 at 11:53 am
maybe you should try to make a small indiegogo campaign like they did with for the mesa driver:
https://www.indiegogo.com/projects/improve-opengl-support-for-the-linux-graphics-drivers-mesa#home
sirblackheart
18 Jun 14 at 4:31 pm
Matt, (with 0.51 – 0.53pre, on Win7Pro-64) I can’t create any more new subdirs in root & top-level dirs (on an ext3 partition): it says no space left, but there’s plenty: only ~500MB taken, in a few thousand files and dirs.
ROOT (O:) // mkdir problem!
|
|- top1 // mkdir problem!
| |
| |- sub // OK
|
|- top2 // mkdir problem!
|
|- sub // OK
Note:
– I can create files OK.
– I can create dirs *in 2nd-level subdirs* OK.
– If I delete a dir (anywhere, e.g. also from 2nd-level subdirs), I can then create a new one in root or in a top-level dir.
– I used to have this(?) problem with this volume earlier, but on a completely different disk & machine, different OS (XP), and much more files and dirs (but still far not many enough for this to seem reasonable).
tune2fs -l O:
tune2fs 1.40.6 (09-Feb-2008)
Filesystem volume name: PERSONAL
Last mounted on:
Filesystem UUID: ad40dd14-a0b1-425f-ae05-16b434b2e391
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index
parse_super large_file
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 768544
Block count: 3072000
Reserved block count: 153600
Free blocks: 2865937
Free inodes: 752690
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 749
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8176
Inode blocks per group: 511
Filesystem created: Thu Jun 19 03:10:50 2014
Last mount time: Fri Jun 20 23:27:47 2014
Last write time: Fri Jun 20 23:32:59 2014
Mount count: 18
Maximum mount count: -1
Last checked: Thu Jun 19 03:10:50 2014
Check interval: 0 ()
Reserved blocks uid: 0 (user unknown)
Reserved blocks gid: 0 (group unknown)
First inode: 11
Inode size: 256
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: 0bfca347-c841-4479-a9d4-8c37e50a0b18
Journal backup: inode blocks
Please let me know how I can help with this. (Use my email, please.)
Cheers!
Sz.
21 Jun 14 at 7:32 am
Sorry, the dir tree ASCII illustration has been fscked by the forum engine. :-/ Anyhow, its just two top-level dirs “top1” & “top2”, with “top1/sub” and “top2/sub” underneath. (These deeper “sub” dirs work OK.)
Sz.
21 Jun 14 at 7:36 am
Briljant, so glad u are back in business….
Roosch
5 Jul 14 at 3:23 am
Hi, I’m using ext2fsd with an ext4 partition and sometimes folders suddenly become read-only, so I have go to my Linux system and reset permissions back. Any ideas why that happens? Would it work better if I use to ext2 instead of ext4?
Sergey
14 Jul 14 at 1:50 am
Here’s the output of tune2fs -l:
Filesystem features: has_journal ext_attr resize_inode dir_index filetype extents spa rse_super large_file gdt_checksum
Sergey
14 Jul 14 at 4:24 pm
Ext2Fsd 0.52 checks “owner permission” as it’s default, though it’s mounted as “root”. In next version I’ll implement the feature “mount as user”, now I’m working on ext4 extent support.
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3 Aug 14 at 6:45 pm
Hi,i just modify shadow to del passwd, but the partition is lvm sometime,How to do?
Wu
7 Aug 14 at 2:14 pm
I like reading through a post that can make men and women think.
Also, thank you for allowing for me to comment!
Isidro
12 Aug 14 at 4:20 pm
Thank you so much for your work, Matt.
I am a secondary school teacher in Italy and a fan of Linux.
I installed the version 0.53pre of the program on PCs and on my laptop with windows 8.1
The 0.53 version will still be improved before release? What are the new features?
Vito Colombo
17 Aug 14 at 9:45 pm
Using Version 0.52 on Windows XP I just mounted an Ext3 Volume using Codepage iso8859-1. When I tried to create a new file with a filename that had a Euro-sign (€) I immediately got a bluescreen with the message BAD_POOL_CALLER and Windows rebooted. This is a very severe error that should be fixed asap.
Cheers, Volker
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