Unable to access files in Samsung Galaxy Android 4.0 I am connecting a Samsung Galaxy Note II(Android 4.0, Ice Cream Sandwich) to Ubuntu 12.04 laptop through USB. I am able to see the directories like Music, files, Bluetooth, ShareViaWiFi etc. I also see a message at the top right corner which says "These files are on a digital audio player" but when I open these directories I am unable to see any file. I want to copy a media file located in ShareViaWiFi folder to my Ubuntu laptop. But I am unable to see the file when I open the folder in Ubuntu. I can see the file in the Samsung Galaxy, so I know it is there for sure.
To start make sure your device is unplugged. Then run:

df -h


that will show you the list of currently mounted devices. Now plug in your device and run the same command again. You should see that there is a new device mounted. Now all you have to do is cd into that mount point to access the files. Here is my example output:

john-macbookpro:~ John$ df -h
Filesystem                          Size   Used  Avail Capacity  iused     ifree %iused  Mounted on
/dev/disk0s2                       297Gi   68Gi  229Gi    23% 17872734  60060168   23%   /

#plugged in device

john-macbookpro:~ John$ df -h
Filesystem                          Size   Used  Avail Capacity  iused     ifree %iused  Mounted on
/dev/disk0s2                       297Gi   68Gi  229Gi    23% 17872734  60060168   23%   /
/dev/disk3s1                       983Mi   13Mi  970Mi     2%      512         0  100%   /Volumes/BACKUP ONLY
john-macbookpro:~ John$ cd /Volumes/BACKUP\ ONLY/
john-macbookpro:BACKUP ONLY John$ ls
hello.txt
john-macbookpro:BACKUP ONLY John$ cp hello.txt /Users/John/Documents/
john-macbookpro:BACKUP ONLY John$ cat /Users/John/Documents/hello.txt 
Hello!


If for some reason your device is not getting mounted, you should try to download ADB:


http://www.xda-developers.com/android/installing-adb-on-ubuntu-the-easy-way/


run ADB and it should try to manage your Android device.

adb start