[TriLUG] making a window partition read/write

[Mark R. Lindsey]

A fat-esque fs can be mounted with uid and gid parameters to specify the
user and group that own the files. However, uid/gid will be most useful 
only if you have another user or group to whom you want to grant
read/write access to the partition.

In general, the umask flag seems to provide a more elegant approach; by setting
it to 000 for the whole filesystem, you functionally `leave the permission
bits set on', so that everyone can access the partition. For example,
consider this fat floppy:

	# mount /dev/fd0 -t vfat -o umask=000 /mnt/floppy
	# ls -al /mnt/floppy
	total 159
	drwxrwxrwx    2 root     root         7168 Dec 31  1969 .
	drwxr-xr-x    6 root     root         4096 May 23  2000 ..
	-rwxrwxrwx    1 root     root       151552 Aug  3  2000 putty.exe

See mount(8), "Mount options for fat".

This option appears to set the msdos_sb_info.options.fs_umask flag
in fs/fat/inode.c. 


--- Scott <biogod at email.unc.edu> wrote:
> 
> I was wondering if there was a way to make a windows partition both 
> readable AND writable without becoming root or su.  I've tried chown, 
> etc, but the permissions won't "stick".  Admittedly, I haven't tried 
> suid yet; would this work?  Any bright ideas?
> 
> Scott "Biogod" Kennedy
> 
> 
> 
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