I really appreciate Ubuntu 14.04 and my Samsung Galaxy S3 mini (8200N).
However, I had strange issues when plugging in the phone and Ubuntu wasn't able to mount properly.
I want to share my experience with you, as it was a struggle for quite some time to me.
This will apply to phones other than the I8200N as well.
If I plugged in the phone in Ubuntu, I got the error message
Unable to mount MTP device USB_SAMSUNG
one to up to a hundred times. This was really annoying. Sometimes Ubuntu "managed" to mount the phone, but it was empty. There was a very rare chance, that Ubuntu really managed to mount it.
I searched for this problem, however the accepted solution was to add the device to /lib/udev/rules.d/69-libmtp.rules
.
In my case the device was already listed.
The next suggestion was to turn on USB debugging on the phone. Since I use it for Android development, it has been turned on very early. No solution either.