Steve,
OK. Microsoft may string me up for this but having their customer's
data get mangled beyond recognition is not helping them, is not helping
Linux, and is definitely not helping their customers. There's also the
fact that despite the fact that the driver is busted and we have told
folks that it is, people just seem to keep using it. I am heads down in
the Linux page cache chasing bugs with NWFS (yes BUGS in the page cache
code of linux - I've found one in generic_commit_write where it will not
post data properly unless the page->buffers buffer head is alloc'd from
the Linux Buffer Cache) - I've got several items to do yet on NWFS on
2.4, but this NTFS thing just keeps coming back and biting us.
I will not have time to get on this until after I post the full Page
Cache version of NWFS (which is very close). I also am still looking at
a problem with mkisofs comlaining about "circular diretories when you
image an NWFS volume. After I get caught up, I will be happy to help
you get the NTFS driver working (to the point where is stops corrupting
data). I recommend MINIMAL functionality (i.e. let's drop the indexing
records and trying to get fancy with the MFT -- just write out data runs
so W2K can mount the FS without corrupting data).
Jeff
Steve Dodd wrote:
>
> On Mon, May 01, 2000 at 10:43:07AM -0600, Jeff V. Merkey wrote:
>
> > The Partition formats are different on W2K vs. NT4.0. If you attempt to
> > write to a W2K partition with the current Linux NTFS driver - YOU WILL
> > CORRUPT THE DRIVE.
>
> TBH, the write code probably mangles NT 4 volumes quite nicely too - the
> directory handling, anyway.
>
> > You might be able to mount it and read from it with
> > the current code (some W2K configurations won't work though), but you
> > should not attempt to write to it. The formats of a W2K partitions are
> > using the Veritas Volume Manager Stuff they developed for W2K. The
> > obvious fix is for someone to study NT4.0 vs. W2K and add the necessary
> > support to **NOT** stomp on the database section Veritas stamps on the
> > W2K partition -- if you overwrite it (which you do -- you think it's
> > free space) -- W2K will be toast the first time it tries to mount the
> > volume after Linux has corrupted it .......
>
> They store data on the volume without marking the used blocks in $Bitmap?
> That's Evil(tm). Is there any technical justification for it?
>
> -
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