[Bug 562139] Re: FUSE filesystems cannot be accessed when shared

2010-04-14 Thread Szabolcs Szakacsits
*** This bug is a duplicate of bug 175689 ***
https://bugs.launchpad.net/bugs/175689

On Tuesday 13, April, Chow Loong Jin wrote:

 crippled filesystem (driver)s that do not 
 implement ownership and/or permissions properly.

For the record, NTFS-3G developers has ported the POSIX File System Test
Suite to Linux and ensured NTFS-3G passes all ownership and permission
tests successfully. Unlike some non-crippled file system drivers which
were fixed later. http://www.tuxera.com/community/posix-test-suite/

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[Bug 562139] Re: FUSE filesystems cannot be accessed when shared

2010-04-14 Thread Szabolcs Szakacsits
*** This bug is a duplicate of bug 175689 ***
https://bugs.launchpad.net/bugs/175689

On Tuesday 13, April, Chow Loong Jin wrote:

 crippled filesystem (driver)s that do not 
 implement ownership and/or permissions properly.

For the record, NTFS-3G developers has ported the POSIX File System Test
Suite to Linux and ensured NTFS-3G passes all ownership and permission
tests successfully. Unlike some non-crippled file system drivers which
were fixed later. http://www.tuxera.com/community/posix-test-suite/

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[Bug 514223] Re: Vista, Windows Server 2008 and Windows 7 unable to access devices touched by ntfs-3g versions prior to 2010.1.16

2010-01-30 Thread Szabolcs Szakacsits
Some correction to the bug report from the NTFS-3G developers:

1. It is not true that Vista, Windows Server 2008 and Windows 7 unable
to access devices touched by ntfs-3g versions prior to 2010.1.16. Just
try and you will see that all of them will see the NTFS partition fine.
The fact is that there is a slight chance in a very special case that
this will happen. How often? Perhaps once in 10 million  cases.

2. It is not true that NTFS-3G created volumes can not be accessed on
Windows. NTFS-3G doesn't create NTFS volumes, it's mkntfs from the
ntfsprogs package which does. Nevertheless we are not aware that mkntfs
has any problem you mention.

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[Bug 412119] Re: Copying NTFS partition full might cause NTFS errors

2009-08-17 Thread Szabolcs Szakacsits
Please see http://ntfs-3g.org/support.html#indexo

** Changed in: ntfs-3g (Ubuntu)
   Status: New = Invalid

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[Bug 389718] Re: Ntsf-3g is corrupting NTFS structure.

2009-08-17 Thread Szabolcs Szakacsits
** Changed in: ntfs-3g (Ubuntu)
   Status: New = Invalid

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[Bug 396874] Re: mount ignores options from fstab

2009-08-17 Thread Szabolcs Szakacsits
http://ntfs-3g.org/support.html#wine

It's a mount(8) bug/feature. Use 'users,exec', not 'exec,user'.

** Package changed: ntfs-3g (Ubuntu) = util-linux (Ubuntu)

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[Bug 368134] Re: nfts-3g ubuntu 9.04 filesystem corruption

2009-08-17 Thread Szabolcs Szakacsits
** Changed in: ntfs-3g (Ubuntu)
   Status: New = Invalid

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[Bug 318625] Re: Rhythmbox shouldn't set illegal / special characters on filenames (i.e. ?; question mark) when ripping to NTFS volumes

2009-08-17 Thread Szabolcs Szakacsits
** Package changed: ntfs-3g (Ubuntu) = rhythmbox (Ubuntu)

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[Bug 162863] Re: ntfs-3g does not respect fstab options

2009-07-10 Thread Szabolcs Szakacsits
http://ntfs-3g.org/support.html#useroption2

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[Bug 368134] Re: nfts-3g ubuntu 9.04 filesystem corruption

2009-05-28 Thread Szabolcs Szakacsits
What NTFS-3G does is actually detects and reports that something has
corrupted two files. The 2.6.28-11 causes massive data corruption with
ICH8/ICH9 on 64 bits installations bug is indeed a very good candidate
to be the real culprit.

Data and file system corruptions almost exclusively origin from a
hardware, device driver, kernel problem or user problem (e.g. unsafe
detach of a hardware). NTFS-3G has extensive and redundant data
integrity and consistency checking and often finds and reports them.

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[Bug 336762] Re: ntfs hard links not working

2009-04-28 Thread Szabolcs Szakacsits
Ubuntu doesn't compile with the internal FUSE library which is used to
ensure and certify NTFS-3G quality. The external FUSE library has
several issues which are fixed only in the FUSE CVS.

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[Bug 336762] Re: ntfs hard links not working

2009-03-09 Thread Szabolcs Szakacsits
The problem can not be reproduced with NTFS-3G 2009.2.1, internal FUSE
and kernel 2.6.26.

NTFS-3G and/or the kernel is too old in Ubuntu 8.10. Upstream NTFS-3G
has closed this issue report as INVALID and Ubuntu specific.

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[Bug 336762] Re: ntfs hard links not working

2009-03-07 Thread Szabolcs Szakacsits
** Changed in: ntfs-3g (Ubuntu)
Sourcepackagename: util-linux = ntfs-3g

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[Bug 336762] Re: ntfs hard links not working

2009-03-07 Thread Szabolcs Szakacsits
Hard links work fine (you can confirm by ls -i after cp -al) but
probably the 'echo B  B' case doesn't because apparently the ''
creates a new file for some reason.

Do you have any specific software which doesn't work correctly with
NTFS-3G?

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2009-02-21 Thread Szabolcs Szakacsits
This is a known Vista problem handling sparse files. Please contact
Microsoft. Good luck!

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[Bug 330023] Re: ntfs-3g crashed with SIGSEGV in ntfs_attr_lookup()

2009-02-17 Thread Szabolcs Szakacsits
NTFS-3G 2009.2.1 did fix a crash in ntfs_attr_lookup if a file or
directory (this is the case here) was highly fragmented and there was an
NTFS corruption or hardware problem: http://ntfs-3g.org/releases.html

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[Bug 330023] Re: ntfs-3g crashed with SIGSEGV in ntfs_attr_lookup()

2009-02-17 Thread Szabolcs Szakacsits
The crash happens exactly at the same place which was fixed in NTFS-3G
2009.2.1.

However the stack trace doesn't look correct. There are some problems
with it. Like apparently using debug symbols from the NTFS-3G 2009.2.1
release and manual edition of vital parameters to corrupt values which
should never happen.

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[Bug 250060] Re: ntfs-3g crashed with SIGSEGV in ntfs_log_handler_syslog()

2009-02-15 Thread Szabolcs Szakacsits
Not ntfs-3g specific, other programs crash in syslog - dl_fixup() too:
Bug #188354, Bug #279586, Bug #124453


** Changed in: glibc (Ubuntu)
Sourcepackagename: ntfs-3g = glibc

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[Bug 175503] Re: User-friendly automounting of ntfs partitions with an unclean logfile

2009-02-13 Thread Szabolcs Szakacsits
NTFS-3G solved this issue from version 2009.2.1: http://ntfs-
3g.org/releases.html

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[Bug 310326] Re: Intrepid: USB HDD not mounted

2009-02-13 Thread Szabolcs Szakacsits
** Changed in: hal (Ubuntu)
Sourcepackagename: ntfs-3g = hal
   Status: Incomplete = Confirmed

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[Bug 240429] Re: adding files to mercurial repository fails on ntfs

2009-02-13 Thread Szabolcs Szakacsits
The driver works as expected (Operation not permitted). Remove the
default_permissions option then it should work. Please see more detail
about permission handling in the NTFS-3G manual ('Access Handling and
Security' section): http://ntfs-3g.org/manual.html

** Changed in: ntfs-3g (Ubuntu)
   Status: New = Invalid

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[Bug 328352] Re: mount.ntfs causes 100% CPU (iowait)

2009-02-13 Thread Szabolcs Szakacsits
It's not clear what you copied from where to where and how.

Anyway it looks to be a hardware problem. Check your RAM and disks for
bad sectors, e.g. by the utility badblocks.

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[Bug 328352] Re: mount.ntfs causes 100% CPU (iowait)

2009-02-13 Thread Szabolcs Szakacsits
It's impossible to see what NTFS-3G has to do with the problem.

Yes, the /dev/sda1 NTFS partition is mounted at /media/WindowsRecovery
by NTFS-3G but you were reading from another file system mounted at
/media/mobile120 and writing to partition /dev/sda2.

The IOWAIT is completely normal when one is copying data. If no disk
activity than that's usually a hardware or kernel device driver problem,
most typically USB problem when an external device is involved. Like it
disconnected, auto-suspended, etc. Did you check your kernel logs?

mount.ntfs in the process list is completely normal when at least one
partition is mounted.

Th FUSE daemon speculation doesn't stand either. The only FUSE daemon is
mount.ntfs which can not deadlock itself, especially when it's not used
for anything.

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[Bug 322751] Re: Not mounting drives unsafely removed in windows is an annoying default

2009-01-30 Thread Szabolcs Szakacsits
Joseph: This is a long and complex story. I make it short. I've seen
many thousands related comments, suggestions, arguments in the last many
years but yours was the first one which had a good point (case 3).
Theoretically you're not right but practically you are: the damage was
already done when the user unsafely detached the drive.

The next release of the official NTFS-3G will mount all such problematic
volumes read-write by default. Thanks.

Regards,Szaka

==
http://ntfs-3g.org

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[Bug 320192] Re: ntfs-3g doesn't support exec option

2009-01-23 Thread Szabolcs Szakacsits
The 'exec' mount option is of course supported. In fact it's the default
NTFS-3G option. There are over 80 NTFS-3G mount options. These are NTFS-
3G, FUSE user space, FUSE kernel driver and kernel VFS related. The
NTFS-3G man page documents only the NTFS-3G specific mount options, none
of the other ones like, 'exec'.

The supported mount options always depend on the NTFS-3G version, the
FUSE user space version, FUSE kernel module version and the kernel
version. But users should never neet to know more then perhaps some of
the NTFS-3G specific one and the general kernel options (uid, gid, exec,
suid, etc).

Please also not blame NTFS-3G for the current problem. It is HAL. We tried hard 
to push for a trivial and transparent solution but the HAL maintainer decided 
to make life much harder for everybody:
http://lists.freedesktop.org/archives/hal/2008-October/012366.html
http://lists.freedesktop.org/archives/hal/2008-October/012368.html

Notice, how I predicted that the HAL changes will break many distributions:
See e.g. Danny's recent reverted patch. The next HAL release will break at 
least all Ubuntu and Fedora based distros (about 12 million users) not 
being able to automount NTFS. Again. 

HAL is historically a highly unreliable and confusing solution. Afaik,
much better alternatives are being worked on.

Btw, the latest NTFS-3G release (2009.1.1) has built-in, transparent
UTF-8 support and the locale= option is ignored for filename conversion.
The locale= option didn't work in many cases eve if it was correctly
passed to NTFS-3G (and that is a glibc problem but that's another very
long story).

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[Bug 318625] Re: Rhythmbox shouldn't set illegal / special characters on filenames (i.e. ?; question mark) when ripping to NTFS volumes

2009-01-20 Thread Szabolcs Szakacsits
This is definitely not an NTFS-3G problem. The '?' is a perfectly legal
NTFS character in the POSIX namesspace NTFS-3G uses: http://ntfs-
3g.org/support.html#posixfilenames2

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[Bug 250705] Re: Please backport ntfs-3g

2008-12-02 Thread Szabolcs Szakacsits
@Shirish: NTFS-3G is a user space driver. It can't hang the system. Only
buggy kernels can. Nevertheless your experience is very unique and it
sounds to be a hardware problem.

It's also possible that Ubuntu patched the driver and something went
terrible wrong. But then, much more people would report this problem but
so far you're the only one.

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[Bug 303610] Re: file move causes data loss if interrupted due to system crash

2008-12-02 Thread Szabolcs Szakacsits
@Florian Linux NTFS development claims 100% NTFS compatibility. If you
think otherwise then please describe here what your problems are because
we very much would like to know and fix it if it's justified. Please
note, Ubuntu uses an extremely old version of the driver which indeed
has many problems which were already solved very long ago: http://ntfs-
3g.org/releases.html

@kyferez Moving a file is irrelevant of the file system. It's an
application level issue. The software gives the orders and the file
system driver (like NTFS-3G) executes them. This is how file managers
always work during cross-device move (you assumption is horrible
wrong!):

1. copy the file to the destination
2. sync the file to the disk on the destination
3. remove file from the source

How can this go wrong? It's the 2. point in the hardware. The disk
caches data and it doesn't flush them to the platter when the software
asks but it lies it's already there to improve performance.

This is not an Ubuntu or Linux issue. It's not even an NTFS issue. It
happens all the time with all operating systems and all file systems.
Here are some examples:

OS X: http://it.slashdot.org/article.pl?sid=07/11/05/2328259
Windows: http://support.microsoft.com/kb/940508

Regards,  Szaka

==
NTFS-3G: http:/ntfs-3g.org

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[Bug 303610] Re: file move causes data loss if interrupted due to system crash

2008-12-02 Thread Szabolcs Szakacsits
Things don't work the way you think. They are much, much more complex.
E.g. a full NTFS driver implementation requires more than 150 person
years work.

Not only the file data but ALL relevant metadata must be on the disk as
well. If only a few metadata bytes are missing then one may lose
everything, or some files, or part(s) of a file or nothing. It depends
on what part of the metadata was not flushed to the disk. This is the
reason why a recovery software can recover files by scanning the entire
disk. Most files are there but the pointers to them are not correct and
they are not visible and accessible by the user.

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[Bug 303610] Re: file move causes data loss if interrupted due to system crash

2008-12-02 Thread Szabolcs Szakacsits
No software solution will help because the (disk) caches will lie about
the data. It's not possible to build a reliable (predictable) system on
unreliable hardware. People want the cheapest and fastest disks = disk
manufacturers provide them but data unreliability is the real price. The
faster media wearing is another serious, increasing reliability problem.

Battery backed disk controllers could help the issue but during a power
outage quite many other things can go wrong in the hardware. Cheap,
personal PCs are not designed to work reliably in such conditions
because the hardware price would rocket what most people couldn't not
afford. Buying and using an UPC is much cheaper.

Invent a cheap, fast, reliable data storage and you will become a
billionaire. Today everybody must choose two from the tree and leave
with the consequences.

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[Bug 303610] Re: file move causes data loss if interrupted due to system crash

2008-12-02 Thread Szabolcs Szakacsits
It's mathematically not possible, not statistically.

If Windows were safe Microsoft wouldn't have documented the same data
loss problem: http://support.microsoft.com/kb/940508 They talk about not
unmounted devices which is the same as suddenly removing them or power
outage.

Moreover the severity of the data loss also depends how the file system
is mounted, sync or not. The former has poor performance but minimizes
data loss. The later has much better performance but much more things
can get lost if the hardware or power fails. Windows typically uses the
former, meanwhile Ubuntu the later because system crashes are not very
common use case scenarios on Linux systems.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-09 Thread Szabolcs Szakacsits
It's possible that this is a pure Windows bug. Either a Microsoft NTFS
or  a device driver related. Google found many similar crashes but none
of them involved NTFS-3G, only for Windows recovery.

Here is an idea how we could prove and document this is a pure Windows
bug.

1. Install Cygwin (a Linux-like environment for Windows):
http://www.cygwin.com/

2. Create the file which BSOD Vista.

3. Copy the file on Windows using cygwin 'cp' command the below way:

cp --sparse=always 001.part 001.part.win

4. Ntfsclone the NTFS volume for potential later investigation.

5. Replace 001.part  (this shouldn't change the problematic NTFS
metadata):

rename 001.part 001.part.linux
rename 001.part.win 001.part

6. Continue the download on Windows.

If Vista BSOD then it's proven that this is a pure Vista bug and
unrelated to NTFS-3G.

If it works then please send the NTFS debug image file you got in step
4.

Thanks!

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-09 Thread Szabolcs Szakacsits
The ZIP package at
http://www.flexhex.com/docs/articles/download/sparse.zip contains a
CS.EXE file which is supposed to work similarly as the cygwin cp
--sparse=always command. The test could be simpler.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-09 Thread Szabolcs Szakacsits
I've found the below on
http://channel9.msdn.com/forums/Coffeehouse/256701-QuickTime-BSODs-
Vista-solution

That eMule had to remove all the sparse file support on Vista because
of Vista bugs

So, it's very well possible this is a pure Vista bug what any software
can trigger, not only NTFS-3G.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-09 Thread Szabolcs Szakacsits
Cygwin cp --sparse=always doesn't work. The files are not sparse. CS.EXE
also doesn't work on my x64 because it's a 32-bit EXE file. Maybe you're
more lucky.

Of course it's also possible that Microsoft silently disabled sparse
file support because they had too many reliability problems with them.
File system development is not too easy.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-09 Thread Szabolcs Szakacsits
No such problem was reported with XP. Sparse support can't be disabled
for NTFS-3G because it's part of the POSIX specification.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
What are the outputs of

ntfs-3g.probe --readwrite /dev/sda5
ntfs-3g.probe --readonly /dev/sda5

Yes, the log file is important even if we can't create yet the NTFS
debug file. We will make a solution for you depending on the above
results.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Storno the  ntfs-3g.probe's. I just realized you use ntfsprogs-2.0.0 and
have problem with the image file, not the NTFS device.

Please use ntfsclone from ntfsprogs 1.13.1. ntfsprogs-2.0.0 has
problems.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Well, if the journal file is unclean then ntfsclone-1.13.2-wip will fail
too.

There are two choices:

1. Run ntfsfix on /dev/sda5 before running ntfsclone (any version).

2. Run ntfsfix on ntfsmeta.img then ntfsclone ntfsmeta.img.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Use the --force option.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Good job! :-)

Yes, bzip2 is unfortunately very slow. We will solve this issue in the
future by using a different NTFS debug image format.

The actions are correct.

I would also need the output of

egrep -3i 'ntfs|ata|sd|i/o' /var/log/daemon.log

and the name of the file which crashes Vista.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Please download http://ntfs-3g.org/download/ntfsclone-1.13.2-wip.tgz

Unpack it and use ntfsclone-1.13.2-wip instead of ntfsclone.

Thanks.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Please also send the output of

egrep -i 'ntfs|ata|sd|I/O' /var/log/daemon.log

/var/log/daemon.log could be also /var/log/messages,
/var/log/messages.log, /var/log/syslog or something else distribution
specific.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
I'll make you an ntfsclone binary which you can use, please wait a bit.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Yes, --force ntfs-3g mount and unmount should also fix it.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
NTFS interoperates with several other subsytems and if one of them fails
then the problem appears as an NTFS bug but in fact it isn't. That's why
more, non-NTFS info is needed, to confine where the problem is.

The good news is that no sign of any hardware problem.

However it seems the NTFS partitions are not unmounted properly, or at
all by Ubuntu. This can indeed cause NTFS corruptions. This seems to
happen all the time at least with /dev/sda1.

The situation is also strange with /dev/sda5 because it was only
unmounted once, yesterday night (besides your today's mount/unmount
which is there in the log fine) but I can't see when and how /dev/sda5
was mounted. Earlier than 3th of October? Then  how could you report the
problem yesterday? So something seems to be very strange about how
Ubuntu handles mounts and unmounts.

The NTFS debug info files should reveal more.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
The file metadata is indeed inconsistent.

Did you start to download the file in Linux or Vista?

What is your Vista version? Do you have Vista Patches, Service Packs?

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Yes, chkdsk has many problems unfortunately. If it still crashes then no
need for the other debug file.

What are the Amule versions for Windows and Linux?

You don't have Windows Home Server, do you?

Microsoft is having major problems with NTFS file corruptions and they even had 
to hire back one of their main NTFS architects recently. 
http://support.microsoft.com/kb/946676
http://blogs.zdnet.com/Bott/?p=473

Some of their corruptions are related to compressed files, and it seems,
this is the case here too. But I don't have any clue why they made the
file quasi-compressed (corrupted metadata) instead of continuing the
file updates as non-compressed, as Linux started.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
That would be a very good observation! If BSOD comes when you copy the
file then please run the below command in Linux shell. It is one line:

for i in $(seq 1 200); do dd if=/dev/zero of=sparse bs=4096
seek=$((2*$i)) count=1 conv=notrunc; done

Then try to copy the 'sparse' file on Windows. If it also BSOD then we
are much closer. Thanks!

No, the file is not compressed, it's sparse only.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
On Wed, 8 Oct 2008, [utf-8] Nicolò Chieffo wrote:

 Do you think that sparse files are wrongly managed by ntfs-3g?

They are fine. But your case is more complex than the usual one.
It also could be a unique, subtle problem. Nobody else reported
this problem and I also can't reproduce it.

 This might be true, since when the file is completed (and though
 re-created) it does not cause any BSOD.
  
If the file caused BSOD but When it's ready and no problem then please run

ntfsinfo -fv -F file_name device

on Linux and sent th efull output.

 Do you know if amule can be set up to not create sparse files? if so we
 could also test if started files can be resumed by emule without any
 problems.
  
I don't know if amule suports this. But I think the issue is sparse file   
related.

 I will also test the following: start the file in emule, resume in
 amule and test back what emule does

Ok.

 Wait: can't it be that emule does not use sparse file, and amule does?
 so emule accesses the file normally which causes the page fault!

Sparse file handling is transparent and a user space application definitely
shouldn't crash the OS. This is a serious Microsoft bug but we need to
figure out where the real problem is. A file system driver should never
crash, not even with corrupted files and data.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-08 Thread Szabolcs Szakacsits
Can you write down the Vista BSOD messages, or make a photo about it?

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-07 Thread Szabolcs Szakacsits
Thank you for the bug report. The NTFS-3G project is very interested to
help you to solve your problem.  Please follow the below steps to be
able to help you:

1. Reproduce the problem.

2. Create the NTFS debug information according to http://www.linux-
ntfs.org/doku.php?id=ntfsclone#store_only_ntfs_metadata

3. Run 'chkdsk DRIVE: /F' and reboot into Windows to make it an effect.

4. Repeat step 1.

5. Try to reproduce the problem on Windows.

6. Send the files you got in step 1. and 3. to szaka AT ntfs-3g.org or
make them available somewhere for download and let us know if step 3
helped.

Thank you,  Szaka

==
NTFS-3G Lead Developer: http://ntfs-3g.org

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-07 Thread Szabolcs Szakacsits
Sorry, step 4 had a typo, it should be:

4. Repeat step 2.

It's important to create the NTFS debug info right after running CHKDSK
and before trying to reproduce the problem.

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[Bug 279017] Re: sharing amule temp files winth Vista in ntfs partition gives BSOD

2008-10-07 Thread Szabolcs Szakacsits
And of course step 6 was supposed to say:

6. Send the files you got in step 2. and 4. to szaka AT ntfs-3g.org or
make them available somewhere for download and let us know if step 3
helped.

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[Bug 269946] Re: open(filename, O_DIRECT) on ntfs fails

2008-09-14 Thread Szabolcs Szakacsits
Thanks. The issue is added to the TODO list. NTFS-3G never supported
O_DIRECT. It was just an accident that it (incorrectly) worked in the
past which, it seems, was fixed by the kernel.

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[Bug 269946] Re: open(filename, O_DIRECT) on ntfs fails

2008-09-13 Thread Szabolcs Szakacsits
Can you reproduce with non-swap files too? If the swap is on then the
error is correct (protects from crash, system corruption) though I think
the errno is indeed misleading (it's a kernel problem).

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[Bug 250597] Re: Cannot mount ntfs partition as only writable by 1 user

2008-07-22 Thread Szabolcs Szakacsits
This is a kernel problem which was (supposedly) fixed silently in the
recent kernel security upgrade. Probably it's time to submit a CVE for
it ...

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[Bug 250597] Re: Cannot mount ntfs partition as only writable by 1 user

2008-07-22 Thread Szabolcs Szakacsits
Ok, I see. Not even one user can write to the partition?

Well, Ubuntu is using an old, unsupported, custom patched and
uncertified NTFS-3G driver with external FUSE. If the configuration is
not right then this problem can indeed happen.

I suggest removing the Ubuntu NTFS-3G package and installing it from the
source: http://ntfs-3g.org/

Besides solving dozens of reliability and security problems, it's also
fully supported by upstream.

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[Bug 250597] Re: Cannot mount ntfs partition as only writable by 1 user

2008-07-22 Thread Szabolcs Szakacsits
On Tue, 22 Jul 2008, themuddler wrote:

 The problem isn't that not-even-one can write, but that any user can
 read/write when it's supposed to be accessible by just 1 user (the
 owner).
  
This is what I answered originally. Upgrade your kernel to the fixed one and 
your problem is gone.

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[Bug 204133] Re: wubi install unusable - Buffer I/O error on device loop0

2008-07-11 Thread Szabolcs Szakacsits
Nice work.

Colin, FUSE doesn't support sync(2) but the 'sync' mount option should
be ok because FUSE writes are always synchronous at the moment. Your
patch fundamentally solved ntfs-3g 'sync' support minus some issues
(cached metadata, disk caching, propagating the sync option to FUSE,
portability, maybe others).

The patch is planned to be applied with some modifications within about
a month as 'sync' mount option support.

Could you please point out where sync(2) is needed in FUSE if this is
the case, or what do you mean it doesn't support what would be needed
for more reliable WUBI operation? I think this would be a strong reason
to raise the implementation priority.

The 'sync' performance impact is 20-3,000% depending on the workload but
it was never more than 200% during normal usages.

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[Bug 243287] Re: Copying files from Linux to NTFS Partition (using NTFS-3G) makes random-placed non-movable system blocks which causes file fragmentation

2008-06-27 Thread Szabolcs Szakacsits
Here are some info what kind of fragmentations exist. It's important to
read because fragmentation types are often misunderstood:
http://en.wikipedia.org/wiki/Fragmentation_(computer)

The NTFS-3G driver tries hard not to fragment files and if you're doing
a lot of concurrent writes then you will find that it's much more
efficient than the Microsoft NTFS driver which fragments files usually
at every 16 clusters meanwhile NTFS-3G fragments them only at around
4000 clusters. This means the elimination of 250 very costly, slow disk
seeks and result much better write and read performance.

What you're seeing is external fragmentation. The NTFS-3G driver indeed
places different files a bit far from each other to eliminate and
optimize file fragmentation to improve the disk performance. How much
does it matter? Usually technically and performance wise it's absolutely
irrelevant.

If you don't believe me then please feel free to send your NTFS debug info to 
szaka AT ntfs-3g.org folllowing the instructions at 
http://www.linux-ntfs.org/doku.php?id=ntfsclone#store_only_ntfs_metadata
and I will tell you the TRUTH about your real fragmentation and what you can 
check yourself to be true by reading all the open source code we are using to 
do these REAL analyzes.

About the system blocks. These are always Windows deficiencies
explained nicely to Windows users. There are many reasons for them. For
instance files in use by Windows are unmovable. Sadly Windows caches a
lot of attributes absolutely needlessly and prevents defragmenters to do
their jobs.  The built-in Windows defragmenter code, what all the
Windows defragmenters use, apparently also has technical limitations,
like not being able to relocates files having attribute list attribute.
In such case they don't say We are very sorry, this functionality is
not implemented! but instead System block. So users won't be upset
with Microsoft but try to find somebody else to blame and people always
do: the defragmenter, a file system driver, etc.

What you can do is offline defragmentation, i.e. Windows should not be
running during the process.

Regards,   Szaka

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[Bug 242426] Re: Ark hangs when file/directory name on NTFS contains a colon

2008-06-24 Thread Szabolcs Szakacsits
http://ntfs-3g.org/support.html#posixfilenames2

Why does the driver allow special characters in the filenames?
NTFS supports several filename namespaces at the same time: DOS, Win32 and 
POSIX. While the NTFS-3G driver handles all of them, it always creates new 
files in the POSIX namespace for maximum portability and interoperability 
reasons. This means that filenames are case sensitive and all characters are 
allowed except '/' and '\0'. This is perfectly legal on Windows, though some 
application may get confused. If you find so then please report it to the 
developer of the relevant Windows software.

Workaround: If case insensitivity handling and/or restriction of
special character usage is desirable then you may export the NTFS volume
via Samba which supports this functionality the same way as it does for
other POSIX file systems.

Status: Not NTFS-3G problem.

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[Bug 199161] Re: File and directory removal, rename and move may have been denied with an Operation not supported error message

2008-06-16 Thread Szabolcs Szakacsits
http://ntfs-3g.org/support.html#compressed

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[Bug 237575] Re: Not ext2/ext3 drivers for other operating systems available when you format an external HDD or USB stick

2008-06-08 Thread Szabolcs Szakacsits
 Reading more about the open source NTFS-3G driver, 
 I have to add that apparently it neither supports change 
 of file owner nor access rights, so IMHO NTFS is no option 
 for the Ubuntu user.

On the NTFS-3G home page at http://ntfs-3g.org the first
link in the first paragraph points to NTFS-3G with full file
ownership and access right support:
http://pagesperso-orange.fr/b.andre/security.html

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[Bug 232443] Re: Let the user choose between ntfs-3g and ntfs kernel driver

2008-06-08 Thread Szabolcs Szakacsits
By default the kernel driver mounts read-only, NTFS-3G read-write.
Mounting read-write turns on a lot of consistency checks to protect
against potential data corruptions during write. But of one uses the
'ro', read-only mount option then NTFS-3G will mount the volume the same
way as the kernel driver.

Yes, many people are not aware of this, or know how to use mount
options. Because of this, NTFS-3G will fall back to read-only mount
automatic by default in the future versions when read-write mount is
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[Bug 232443] Re: Let the user choose between ntfs-3g and ntfs kernel driver

2008-05-21 Thread Szabolcs Szakacsits
Hi,

I'd like to ask, why do you want to use the NTFS kernel driver?

NTFS-3G can be also used read-only with the 'ro' mount option but a
memory corruption can not lead to system crash or data corruption on the
disk unlike in case of the NTFS kernel driver.

Fundamentally NTFS-3G is the five years old, rewritten NTFS kernel
driver plus three years more work: bug fixes, new features, actively
developed/maintained, etc.

Thanks,  Szaka

==
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[Bug 232443] Re: Let the user choose between ntfs-3g and ntfs kernel driver

2008-05-21 Thread Szabolcs Szakacsits
CPU usage:

- Until very recently Ubuntu indeed used an old, very CPU consuming driver. 
- The NTFS-3G CPU usage is visible in the process list which is not true for 
kernel drivers. This makes some people think that the driver uses a lot of CPU 
even if sometimes it uses less than the in-kernel Linux file systems.
- Some more are listed on http://ntfs-3g.org/support.html#cpu100
- The priority of the project is reliability. When we must chose between 
stability/correctness or performance then we always select the first one. No 
exception. We improve performance only if it doesn't impact the formers in any 
way.
- The driver is not optimized yet. This will happen when the time comes.

Sluggish directory listing:

Well, nobody reported this yet. Probably you mean latency. NTFS-3G
indeed reads all files before showing the first one. So the delay
usually is longer but afterwards it must be smoother.

Kernel/user-space difference:

Yes, there are quite a lot of myths unfortunately. Some short reading:
http://lkml.org/lkml/2008/4/18/136

Data corruptions with 'ro' drivers:

All kernel drivers are in the same, unprotected address space. If one
has a bug then anything can go wrong anywhere. These do happen all the
time. More readings: http://pages.cs.wisc.edu/~swift/

Regards,  Szaka

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[Bug 232443] Re: Let the user choose between ntfs-3g and ntfs kernel driver

2008-05-21 Thread Szabolcs Szakacsits
Sorry, this is the link I originally intended to send in my last
comment: http://pages.cs.wisc.edu/~swift/projects/drivers.html

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[Bug 230906] Re: Using special characters in filenames prevents Windows from opening

2008-05-16 Thread Szabolcs Szakacsits
http://ntfs-3g.org/support.html#posixfilenames2

Why does the driver allow special characters in the filenames?

NTFS supports several filename namespaces at the same time: DOS,
Win32 and POSIX. While the NTFS-3G driver handles all of them, it always
creates new files in the POSIX namespace for maximum portability and
interoperability reasons. This means that filenames are case sensitive
and all characters are allowed except '/' and '\0'. This is perfectly
legal on Windows, though some application may get confused. If you find
so then please report it to the developer of the relevant Windows
software.

Workaround: If case insensitivity handling and/or restriction of
special character usage is desirable then you may export the NTFS volume
via Samba which supports this functionality the same way as it does for
other POSIX file systems.

Status: Not ntfs-3g problem.

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[Bug 106621] Re: Gnome Trash doesn't show deleted files on ntfs-3g partitions

2008-05-05 Thread Szabolcs Szakacsits
 Could someone modify the ntfs-3g package so that the hack is directly
 implemented when the fstab is written?

Sadly we can not do anything in NTFS-3G because, as it was earlier 
explained and patches submitted, this is not an NTFS-3G bug but a Gnome 
one.  When it's possible we always workaround in bugs in applications but 
I'm sorry to say, we can't do it this time. 

We also think it's fairly unfortunate how Gnome works because it's not the 
behavior many Ubuntu users expect and they do keep losing files because 
of this.

Regards,  Szaka

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[Bug 106621] Re: Gnome Trash doesn't show deleted files on ntfs-3g partitions

2008-05-05 Thread Szabolcs Szakacsits
 why would users delete files exactly? when there is no trash 
 available nautilus display a dialog explaining that and ask for 
 confirmation to the users

By accident. Childen. Elder people. Users who think they can recover
from the Trash if they still change their mind.  Software bugs. Hung
then recovered X/OS/etc and when people desperately hitting/clicking 
everything to happen something during the temporary freeze time.
People in hurry. People in panic. Visually impaired people. And so on.

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[Bug 226622] Re: Wubi has unclear error message on NTFS dirty flag

2008-05-05 Thread Szabolcs Szakacsits
Both ntfs-3g and ntfs-3g.probe could be used and both return error code
15 if the journal is unclean: http://linux.die.net/man/8/ntfs-3g.probe

The most important thing is gracefully shut down and detaching
external devices as Microsoft and drive manufacturers has documented.

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[Bug 61235] Re: USB mass storage stops working after a while

2008-05-04 Thread Szabolcs Szakacsits
 I would suspect ntfs to be contributing to the issue but the other identical 
 psc has the same issue though it doesnt not need to be power cycled as often.

I can assure you the issue absolutely has nothing to do with NTFS.

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[Bug 190329] Re: DAC permissions not correctly enforced

2008-05-03 Thread Szabolcs Szakacsits
I can't see problems in your debug session. Your umask setting causes
the permission denied errors, no 'x' on the directories. Try e.g.
fmask=337,dmask=227 with the 'ro' mount and it will work fine. Similar
logic for 'rw' mounts.

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[Bug 190329] Re: DAC permissions not correctly enforced

2008-04-30 Thread Szabolcs Szakacsits
Search for the FUSE kernel module default_permission fix.

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[Bug 223280] Re: rdiff-backup fails on file with unknown unicode character

2008-04-29 Thread Szabolcs Szakacsits
See http://ntfs-3g.org/support.html#locale

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[Bug 190329] Re: DAC permissions not correctly enforced

2008-04-27 Thread Szabolcs Szakacsits
Fixed in kernel 2.4.25.

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[Bug 190329] Re: DAC permissions not correctly enforced

2008-04-27 Thread Szabolcs Szakacsits
Fixed in kernel 2.6.25.

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[Bug 190329] Re: DAC permissions not correctly enforced

2008-04-27 Thread Szabolcs Szakacsits
Fixed in kernel 2.6.25.

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[Bug 203540] Re: ntfs-3g crashed while copying files to an external USB drive (in ntfs_mft_record_alloc)

2008-04-23 Thread Szabolcs Szakacsits
If ntfs-3g crashes then please send to [EMAIL PROTECTED] the NTFS information 
according to 
http://www.linux-ntfs.org/doku.php?id=ntfsclone#store_only_ntfs_metadata
and the compressed /var/log/daemon.log file.

Otherwise we can't help. Nobody else is having this problem, so you're
the only one who can provide us the needed debug information for
investigation.

Regards,  Szaka

==
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[Bug 205081] Re: ntfs-3g will mount as root only, breaks mounting as user

2008-04-22 Thread Szabolcs Szakacsits
 but also to use the external fuse libs

It needs internal fuse. The external fuse (suid-root fusermount) has
know potential exploits, ntfs-3g doesn't have any. So the safe internal
fuse replaces the insafe external fuse.

Regards, Szaka

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[Bug 195420] Re: moving files with special characters fails

2008-04-22 Thread Szabolcs Szakacsits
 This is because ntfs-3g is ignoring locales

Ntfs-3g **never** ignores locale. It's not setup.

Regards,  Szaka

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[Bug 210528] Re: ntfs-3g mounted with both options relatime and noatime

2008-04-02 Thread Szabolcs Szakacsits
Actually there are two problems here:

1. The extra added noatime option which is fixed in NTFS-3G CVS.

2. The atime-relatime change which is a problem in the mount(8) utility
because it doesn't pass the atime option to NTFS-3G, so it defaults to
relatime.

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[Bug 210528] Re: ntfs-3g mounted with both options relatime and noatime

2008-04-02 Thread Szabolcs Szakacsits
This  is already fixed in the NTFS-3G CVS and will be included in this
month of NTFS-3G release. Thanks.

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[Bug 210630] Re: Gutsy version of NTFS allows improper characters in file names

2008-04-02 Thread Szabolcs Szakacsits
This is 100% intentional, documented at 
http://ntfs-3g.org/support.html#posixfilenames2
and in fact Windows can access them fine for example by the Windows port of 
ntfsprogs.

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[Bug 203540] Re: ntfs-3g crashed while copying files to an external USB drive (in ntfs_mft_record_alloc)

2008-03-31 Thread Szabolcs Szakacsits
On Mon, 31 Mar 2008, lozioric wrote:
   What Windows version (XP, Vista, Service Packs, etc) do you use?

 XP Pro SP2, Italian, with up-to-date security updates.

   Did you use a 3rd party NTFS driver (Partition Magic, Ghost, security
   software, etc)?

 I had used Acronis TrueImage once on the affected disk, but I had run

Ok, Acronis is known to have problem with NTFS.

 Chkdsk on it a couple of times since, so it hardly matters IMHO.

Chkdsk is not reliable. It also has several known problems.

 Unfortunately I don't have the disk with me, nor will I for some days.
 In the meantime it is being used with other Windows boxes (all XP SP2,
 same as above). Will the info still be useful if I send them in a week
 or so?

Yes, it would be useful if you can still reproduce the problem (what you
should). No problem when you can do it since I'm fairly sure the problem
is Acronis related which is not used by many people. Your problem is unique.

Thanks.

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[Bug 186117] Re: Cannot remount ntfs

2008-03-31 Thread Szabolcs Szakacsits
Unfortunately neither fuse nor ntfs-3g support remount at the moment. 
The working rw-ro case is by pure accident and could lead to data loss.

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[Bug 203540] Re: ntfs-3g crashed while copying files to an external USB drive (in ntfs_mft_record_alloc)

2008-03-29 Thread Szabolcs Szakacsits
Thanks for the bug report.

What Windows version (XP, Vista, Service Packs, etc) do you use?

Did you use a 3rd party NTFS driver (Partition Magic, Ghost, security
software, etc)?

Could you please send to [EMAIL PROTECTED] the extracted NTFS
information according to http://www.linux-
ntfs.org/doku.php?id=ntfsclone#store_only_ntfs_metadata and the
compressed /var/log/daemon.log file for debugging?

Thanks, Szaka

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[Bug 208804] Re: error message mounting suspended disk

2008-03-29 Thread Szabolcs Szakacsits
Ubuntu uses a very old version of ntfs-3g.  The message in the latest
ntfs-3g releases is

The NTFS partition is hibernated. Please resume and shutdown Windows
properly, or mount the volume read-only with the 'ro' mount option, or
mount the volume read-write with the 'remove_hiberfile' mount option
For example type on the command line:

mount -t ntfs-3g %s %s -o remove_hiberfile

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[Bug 186569] Re: cannot delete files off of an Fuse mounted NTFS partition in nautilus

2008-03-07 Thread Szabolcs Szakacsits
Sebastien Bacher wrote:
That's a ntfs-3g issue, rmdir on an existant directory returns EEXIST and not 
ENOTEMPTY as it should

You're quite mistaken. Both are correct and file systems use both values:
http://www.opengroup.org/onlinepubs/007908775/xsh/rmdir.html

NTFS-3G uses EEXIST because more software handle the relevant error
scenario better that way. Seemingly that doesn't include Nautilus.

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[Bug 190667] Re: Cannot copy all files between NTFS disks

2008-02-11 Thread Szabolcs Szakacsits
You did your tests with the two years old, obsolote, not production
quality ntfsmount.

Stable read/write NTFS support is provided by a completely different
NTFS driver, called NTFS-3G and it's built-in into Ubuntu 7.10.

The correct command to use the default Ubuntu NTFS driver is

mount -t ntfs-3g /dev/sdb1 /media/sdb1/
 or 
ntfs-3g /dev/sdb1 /media/sdb1/
 or probably only 
mount /dev/sdb1 /media/sdb1/

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[Bug 184820] Re: cannot mount NTFS partition as a normal user

2008-01-21 Thread Szabolcs Szakacsits
http://ntfs-3g.org/support.html#useroption

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[Bug 180620] Re: Double mount in one directory

2008-01-08 Thread Szabolcs Szakacsits
This is how Linux mount works.

Bye,   Szaka

==
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** Changed in: ubuntu
   Status: New = Invalid

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[Bug 179910] Re: Ubuntu should, in some way, handle Windows rules for file names on a NTFS partition

2008-01-07 Thread Szabolcs Szakacsits
Stephen: The problem is not Windows but certain Windows softwares which
intentionally ignore such files. NTFS-3G doesn't create files in the
POSIX namespace to annoy people. Actually it's just the opposite! This
way things can Just Work on Linux, Windows, OS X, FreeBSD, NetBSD,
OpenSolaris, etc. It is for maximum interoperability what all these OSes
support on the file system level, including the Windows operating
system.

If the driver would create files in a limited namespace then tremendous
amount of Linux softwares would break mysteriously, occasionally with
data loss. That would be way much worse than the fake error messages
from some broken Windows softwares which could be easily fixed.

Bye,Szaka

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[Bug 179910] Re: Ubuntu should, in some way, handle Windows rules for file names on a NTFS partition

2008-01-06 Thread Szabolcs Szakacsits
Well, it seems to be stupidly false for you because you didn't made the
effort to understand what NTFS namespaces are and how file system
drivers and applications use them.

It __IS__ possible to create files with all the characters you mentioned
on Windows and it __IS__ possible to read/rename all these files on
Windows which were created on Linux. This just __DEPENDS_ON__ how a
given Windows application implemented file handling.

You're beating a dead horse because the real problem is not on the Linux
but on the Windows side. You're arguing introducing a silliness on Linux
instead of you would urge Windows developers to fix their broken
softwares which they could very easily done by properly prefixing
filenames.

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[Bug 179910] Re: Ubuntu should, in some way, handle Windows rules for file names on a NTFS partition

2008-01-06 Thread Szabolcs Szakacsits
Explorer is long known to be broken. This is not surprising because
Microsoft is very much interested NOT to interoperate well with other
systems on this level to lock users to their platform.

You also still don't seem to understand that the only Windows softwares
which can't handle such filenames are the ones which DO NOT WANT to
handle them.

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[Bug 179910] Re: Ubuntu should, in some way, handle Windows rules for file names on a NTFS partition

2008-01-05 Thread Szabolcs Szakacsits
http://ntfs-3g.org/support.html#posixfilenames2

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[Bug 165154] Re: NTFS-3G does not mount external disc in kernel 2.6.22

2007-11-26 Thread Szabolcs Szakacsits
*** This bug is a duplicate of bug 115616 ***
https://bugs.launchpad.net/bugs/115616

I can tell you that the issue has really absolutely nothing to do with
ntfs-3g.

It's the kernel how it (incorrectly?) started to setup raid, dm, ldm, etc.
The device busy always means that something already locked a device,
so it's either already mounted (not in this case) or some kernel subsystem
uses it (you must mount some other device, not what you want, e.g. /dev/md0*,
/dev/mapper/balblabla*, etc). It really depends on what you have.

  Szaka

==
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[Bug 148949] Re: Windows partitions not accessible

2007-11-11 Thread Szabolcs Szakacsits
The relevant device is already locked by probably the device mapper, LDM
or md.

Look for mountable devices under /dev/mapper. kpartx -a
/dev/mapper/brand_blabla may be needed to create the mountable
partitions under /dev/mapper.

In the other two cases follow the relevant instructions how to create a
mountable device or what to mount.

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[Bug 24063] Re: Amarok hangs during tagging of FLAC files

2007-11-08 Thread Szabolcs Szakacsits
@apecar: 
If you have 90+% NTFS-3G CPU usage then please send the 
debug log following the instructions at
https://bugs.launchpad.net/ubuntu/+source/amarok/+bug/24063/comments/9

and after that the full output of 
egrep -i 'dma|sd|ntfs' /var/log/daemon.log*

-- 
Amarok hangs during tagging of FLAC files
https://bugs.launchpad.net/bugs/24063
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