Problem in mounting disks

[arshad]

hi all,
i have two problems with mounting disks:


     1. i have 4 users in my system, and me (sudoer) have access to the
        ntfs drives. but other users don't have access to them unless i
        already have clicked them.
     2. USB drives are not accessible to users except the original user
        who plugged it in. it is not accessible even for the sudoer.


helps would be greatly appreciated.
thank you very much

PS:

[php]
$ sudo fdisk -l


Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x03550354

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        6375    51200000    7  HPFS/NTFS
/dev/sda2            6375       11474    40960000    7  HPFS/NTFS
/dev/sda3           11475       11499      200812+  82  Linux swap / Solaris
/dev/sda4           11500       19457    63922635    5  Extended
/dev/sda5           11500       19170    61617276   83  Linux
/dev/sda6           19437       19457      168651   82  Linux swap / Solaris
/dev/sda7           19171       19436     2136613+  82  Linux swap / Solaris

Partition table entries are not in disk order

Disk /dev/sdb: 4022 MB, 4022337536 bytes
255 heads, 63 sectors/track, 489 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x83f5fd0a

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1         460     3694918+   b  W95 FAT32
/dev/sdb2             461         489      232942+   5  Extended
/dev/sdb5             461         489      232911   82  Linux swap / Solaris
[/PHP]

fstab:
[php]
# /etc/fstab: static file system information.
#
# Use 'vol_id --uuid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
# / was on /dev/sda5 during installation
UUID=becef1b2-d864-4764-828f-6381e90fd95d /               ext4    relatime,errors=remount-ro 0       1
# swap was on /dev/sda3 during installation
UUID=bd49a241-1650-4369-82ae-726b389bc10c none            swap    sw              0       0
# swap was on /dev/sda6 during installation
UUID=2c7425b6-d64e-d288-ae82-bf2580cd63c4 none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto,exec,utf8 0       0
/dev/fd0        /media/floppy0  auto    rw,user,noauto,exec,utf8 0       0
[/php]
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