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There is a driver for windows that allows it to read ext2/3 (ext2 is
better for flash drives because there are fewer writes).  This is now
what I use on my flash drives (with a small vfat partition containing
the win driver)

You may be interested in these ext2 mount options:
resuid=n        The user ID which may use the reserved blocks.
resgid=n        The group ID which may use the reserved blocks.

Some other interesting mount options:
grpid, bsdgroups Give objects the same group ID as their parent.
- -nogrpid, sysvgroups (*) New objects have the group ID of their creator.
+nogrpid, sysvgroups New objects have the group ID of their creator.

In the linux kernel sources under Documentation/filesystems/ext2.txt is
where I got this info.  Very handy place to look btw.

Cheers,


Roy Souther wrote:
> I need my system to be able to let uses read and write to USB drives and
> memory devices when they plug them into their local station. When a user
> inserts a USB device I have the system locate the user ID by the owner
> of the DISPLAY session. The device is then mounted in their home
> directory. For USB memory sticks I use the UID and GID so that all
> entries on the device are owned by them and they have full rights. This
> works great for small USB memory sticks that come pre-formated as vfat
> because vfat supports the UID and GID options.
> 
> New problem. Someone wants to plug in an 80GB external USB drive. The
> drive came as NTFS. Linux cannot write to NTFS in any way that a Windows
> system could read the data back. Vfat does not support partitions larger
> then 32GB and ext2 & 3 do not support UID or GID so the system is owned
> by root.
> 
> I would like some way to make the mounted 80GB drive ext2 or ext3 and
> owned by the user that inserted the device just the same way I do with
> small USB memory sticks. I cannot figure out any way to do that.
> Everything I have tried has failed and only root can write to the drive.
> 
> Linux has an NTFS DLL wrapper that will use the Windows DLL's to write
> to the drive so that Windows can read them but I don't think I am
> allowed to distribute those DLL's. I really need an unencumbered solution.
> 
> So I am looking at all the different FS types that Linux supports, there
> are a lot. Can you give me your input on what FS to use? Do any FS types
> support large size and UID/GID that both Linux and Windows can read?
> 
> 
> _Royce Souther <mailto:[EMAIL PROTECTED]>_
> _www.SiliconTao.com <http://www.SiliconTao.com>_
> Let Open Source help your business move beyond.
> 
> For security this message is digitally authenticated by _GnuPG
> <http://www.gnupg.org>_.
> 
> 
> 
> 
> 
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