Why I can't mount usb stick with my uid or gid?

[Qiao Zhao]

On 11/07/2013 10:52 AM, 乃宏周 wrote:
> I use ubuntu 12.04, and my usb stick had been found at /dev/sdb and 
> has 2 partitions.
> If I `mount /dev/sdb1 ~/work`, My usb stick can be mounted 
> sucessfully, but ownership of ~/work is root, so I can't write 
> anything to it.
> But if I `mount -o uid=1000,gid=1000 /dev/sdb1 ~/work`, system replies 
> following error message:
>
> mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
>        missing codepage or helper program, or other error
>        In some cases useful info is found in syslog - try
>        dmesg | tail  or so
>
> Why this situation occurred? I'm sure that my pid and gid is 1000.
> Any ideas?
>
Because uid,gid and other parameters are given nfs, vfat file systems. 
ext3 and ext4 file systems doesn't
support this mount.
This is my test log:
$ sudo mount -o uid=500,gid=500 /dev/sdb1 /media/
$ mount
/dev/sdb1 on /media type vfat (rw,uid=500,gid=500)
>
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20131107/7d8ae522/attachment-0001.html