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After reinstalling Ubuntu 12.04 I am facing a strange problem. Anytime I plug in a flash key, Kindle etc., I can see it, but can't write. Owner of the device on say /media/usb0 is root.

When I try to write as root, eg. sudo cp or via root privileged file manager, it works, but is extremly slow.

What could cause such thing?

EDIT: my /etc/fstab

# /etc/fstab: static file system information.
#
# Use 'blkid' 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    nodev,noexec,nosuid 0       0
# / was on /dev/sda2 during installation
UUID=595815c2-d882-4ec8-a2cd-cce70471167c /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda6 during installation
#UUID=1340a336-66ca-4743-a6e4-41a307af2dda /boot           ext4    defaults        0       3
# swap was on /dev/sda5 during installation
UUID=afa49f1d-d505-4166-82a2-2f44548a48c6 none            swap    sw              0       0

UUID=deb86039-528a-45f3-b5f9-ce528740c94e /data_hdd ext4    defaults    0   2
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do you have any entries for flash drives in /etc/fstab? –  madmaze Dec 17 '12 at 20:40
    
no, editted my answer to include /etc/fstab –  mreq Dec 17 '12 at 20:43
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1 Answer

up vote 3 down vote accepted

Make sure you are in the right groups to access removable media.

id -a will show list of groups you are in. If you don't see there plugdev and fuse then you'd better add yourself to these groups by running

sudo usermod -a -G plugdev,fuse USERNAME

share|improve this answer
    
I wasn't in fuse. Seems to do the job! –  mreq Dec 18 '12 at 19:34
    
didn't work for me. My user is in both plugdev and fuse yet the usb drive still mounts without write permission for the user. "USB drive auto-mounted by user but gets write permissions for root only" is my almost duplicate question. This is 13.04 –  Adam Jan 16 at 12:56
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