[Swlug] Automounting problem

[Mark Summerfield]

Hi,

I have a strange automounting problem.

I have a machine with two user accounts: mark & andreas (the second
created by mistake - should have been andrea).

I have no USB devices in /etc/fstab

When I insert an ext4-formatted USB memory stick it is mounted in
/media/mark/VolumeNameOfMemoryStick

But ls -lh on it reveals it its owner and group are andreas andreas. So
although I can read it, the only way to write is to sudo -u andreas -i
and then do it from that account.

I'm using Xubuntu 14.04 LTS.

Can anyone tell me how to make auto-mounted USBs default to owner and
group mark mark?

Thanks!
-- 
Mark Summerfield, Qtrac Ltd.