Comment 12 for bug 965234

Here are the outputs of mount and df commands for the non-edubuntu user, which correctly sees the vfat file system:
sandra@edubuntu:~$ mount
/cow on / type overlayfs (rw)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
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)
/dev/sdb1 on /cdrom type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
cgroup on /sys/fs/cgroup type tmpfs (rw,uid=0,gid=0,mode=0755)
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)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/sandra/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=sandra)
/dev/sda1 on /media/20E4C0C1E4C09B04 type fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
/dev/sda6 on /media/2a8ce349-f68c-4e3c-9f20-4a58d49de7b1 type ext4 (rw,nosuid,nodev,uhelper=udisks)
sandra@edubuntu:~$ df
File system 1K-blocchi Usati Disponib. Uso% Montato su
/cow 1032088 540208 439452 56% /
udev 504324 4 504320 1% /dev
tmpfs 204760 884 203876 1% /run
/dev/sdb1 3893044 3767528 125516 97% /cdrom
/dev/loop0 2072832 2072832 0 100% /rofs
cgroup 511896 0 511896 0% /sys/fs/cgroup
tmpfs 511896 12 511884 1% /tmp
none 5120 0 5120 0% /run/lock
none 511896 152 511744 1% /run/shm
/dev/sda1 95594748 87327940 8266808 92% /media/20E4C0C1E4C09B04
/dev/sda6 19374208 8272252 10130028 45% /media/2a8ce349-f68c-4e3c-9f20-4a58d49de7b1
sandra@edubuntu:~$