Each time I try to safely remove my removable storage device USB port I get the following error: Unable to stop drive. This file can not be stopped

With the device inserted, what is the output of:

sudo fdisk -l; uname -a; lsb_release -a; mount

Thanks

Unfortunetly I'm not familiar enough with Ubuntu 12.04 (or any linux OS) to understand what you mean. Could you list the steps I need to take inorder to answer your question?

thanks,
Noach

Copy the command as one line and press CTRL + ALT + T

Paste the command into the terminal and hit ENTER

Type your password ( you won't get any feedback as you type )

Copy the output and paste here as an update.

Thanks

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000df55d

   Device Boot Start End Blocks Id System
/dev/sda1 * 2048 484225023 242111488 83 Linux
/dev/sda2 484227070 488396799 2084865 5 Extended
/dev/sda5 484227072 488396799 2084864 82 Linux swap / Solaris

Disk /dev/sdb: 16.0 GB, 16000221184 bytes
64 heads, 32 sectors/track, 15259 cylinders, total 31250432 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot Start End Blocks Id System
Linux noach-Inspiron-1018 3.11.0-18-generic #32~precise1-Ubuntu SMP Thu Feb 20 17:54:21 UTC 2014 i686 i686 i386 GNU/Linux
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.4 LTS
Release: 12.04
Codename: precise
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
gvfs-fuse-daemon on /home/noach/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=noach)
/dev/sdb on /media/SanDisk type vfat (rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks)
noach@noach-Inspiron-1018:~$

Is it the SanDisk you are having issues with?

Yes. I am having this problem with a SanDisk USB removable storage device. Interstingly when I click on eject (files > eject) the OS shuts down the drive and I no longer see that the SanDisk is connected. It's only when I click on Safely Remove Drive (Files > Safely Remove drive) do I get the error message : "Unable to Stop Drive".

Does this storage get used in a camera or is it just for computers?

just for computers

Sorry but I have to admit that I really don't understand the purpose of partitioning, formating, and mounting. Would you mind listing the exact steps (according to your diagnosis) that I need to take in oder to use the device on computers running Linux or Windows?