[Android Software Development] KITT1995:
That's it:

Model: LG-H850
Manufacturer: LGE
Device: h1
CPU ABI: armeabi-v7a
Android ver: 23
ID: MMB29M
FM version: v2.9.7b
Secondary storage: /storage/7ECE-8B8B
Secondary storage env:
Emualted: YES

Mount points:
rootfs on / type rootfs (ro,seclabel,size=1867940k,nr_inodes=466985)
tmpfs on /dev type tmpfs (rw,seclabel,nosuid,relatime,mode=755)
devpts on /dev/pts type devpts (rw,seclabel,relatime,mode=600)
none on /dev/cpuctl type cgroup (rw,relatime,cpu)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,seclabel,relatime)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,seclabel,relatime)
none on /sys/fs/cgroup type tmpfs (rw,seclabel,relatime,mode=750,gid=1000)
pstore on /sys/fs/pstore type pstore (rw,seclabel,relatime)
none on /acct type cgroup (rw,relatime,cpuacct)
tmpfs on /mnt type tmpfs (rw,seclabel,relatime,mode=755,gid=1000)
/data/media on /mnt/runtime/default/emulated type sdcardfs (rw,nosuid,noexec,noatime,uid=1023,gid=1023,sdfs_gid=1015,sdfs_mask6,multi_user)
/data/media on /mnt/runtime/read/emulated type sdcardfs (rw,nosuid,noexec,noatime,uid=1023,gid=1023,sdfs_gid=9997,sdfs_mask23,multi_user)
/data/media on /mnt/runtime/write/emulated type sdcardfs (rw,nosuid,noexec,noatime,uid=1023,gid=1023,sdfs_gid=9997,sdfs_mask7,multi_user)
/dev/block/vold/public:179,1 on /mnt/media_rw/7ECE-8B8B type vfat (rw,dirsync,nosuid,nodev,noexec,noatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)
/dev/block/vold/public:179,1 on /mnt/secure/asec type vfat (rw,dirsync,nosuid,nodev,noexec,noatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)
/mnt/media_rw/7ECE-8B8B on /mnt/runtime/default/7ECE-8B8B type sdcardfs (rw,nosuid,noexec,noatime,uid=1023,gid=1023,sdfs_gid=1015,sdfs_mask6)
/mnt/media_rw/7ECE-8B8B on /mnt/runtime/read/7ECE-8B8B type sdcardfs (rw,nosuid,noexec,noatime,uid=1023,gid=1023,sdfs_gid=9997,sdfs_mask18)
/mnt/media_rw/7ECE-8B8B on /mnt/runtime/write/7ECE-8B8B type sdcardfs (rw,nosuid,noexec,noatime,uid=1023,gid=1023,sdfs_gid=9997,sdfs_mask18)
/dev/block/sda13 on /system type ext4 (ro,seclabel,noatime,data=ordered)
/dev/block/loop0 on /system/xbin/su type ext4 (rw,seclabel,noatime,data=ordered)
/dev/block/sda14 on /cache type ext4 (rw,seclabel,nosuid,nodev,noatime,discard,noauto_da_alloc,errors=continue,data=ordered)
/dev/block/sda12 on /persist type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered)
/dev/block/sde18 on /firmware type vfat (ro,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
/dev/block/sda4 on /sns type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered)
/dev/block/sda3 on /persist-lg type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered)
/dev/block/sda2 on /mpt type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered)
/dev/block/sda15 on /cust type ext4 (ro,seclabel,nosuid,nodev,relatime,noauto_da_alloc,data=ordered)
/dev/block/sda16 on /OP type ext4 (ro,seclabel,nosuid,nodev,relatime,noauto_da_alloc,data=ordered)
tmpfs on /storage type tmpfs (rw,seclabel,relatime,mode=755,gid=1000)
/data/media on /storage/emulated type sdcardfs (rw,nosuid,noexec,noatime,uid=1023,gid=1023,sdfs_gid=1015,sdfs_mask6,multi_user)
/mnt/media_rw/7ECE-8B8B on /storage/7ECE-8B8B type sdcardfs (rw,nosuid,noexec,noatime,uid=1023,gid=1023,sdfs_gid=1015,sdfs_mask6)
/dev/block/dm-0 on /data type ext4 (rw,seclabel,nosuid,nodev,noatime,discard,noauto_da_alloc,resuid=1000,errors=continue,data=ordered)
/dev/block/loop0 on /su type ext4 (rw,seclabel,noatime,data=ordered)
/dev/block/vold/public:179,1 on /data/media/0/opsu type vfat (rw,dirsync,nosuid,nodev,noexec,noatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)

DF:
Filesystem 1K-blocks Used Available Use% Mounted on
rootfs 1867940 11944 1855996 1% /
tmpfs 1944804 176 1944628 0% /dev
none 1944804 12 1944792 0% /sys/fs/cgroup
tmpfs 1944804 0 1944804 0% /mnt
/data/media 24700020 4053720 20588956 16% /mnt/runtime/default/emulated
/data/media 24700020 4053720 20588956 16% /mnt/runtime/read/emulated
/data/media 24700020 4053720 20588956 16% /mnt/runtime/write/emulated
/dev/block/vold/public:179,1
30683136 17020640 13662496 55% /mnt/media_rw/7ECE-8B8B
/dev/block/vold/public:179,1
30683136 17020640 13662496 55% /mnt/secure/asec
/mnt/media_rw/7ECE-8B8B
30683136 17020640 13662496 55% /mnt/runtime/default/7ECE-8B8B
/mnt/media_rw/7ECE-8B8B
30683136 17020640 13662496 55% /mnt/runtime/read/7ECE-8B8B
/mnt/media_rw/7ECE-8B8B
30683136 17020640 13662496 55% /mnt/runtime/write/7ECE-8B8B
/dev/block/bootdevice/by-name/system
4396924 4000308 380232 91% /system
/dev/block/loop0 28144 2100 25392 8% /system/xbin/su
/dev/block/bootdevice/by-name/cache
507848 1496 495868 0% /cache
/dev/block/bootdevice/by-name/persist
28144 176 27316 1% /persist
/dev/block/bootdevice/by-name/modem
88016 71536 16480 81% /firmware
/dev/block/bootdevice/by-name/sns
1936 80 1736 4% /sns
/dev/block/bootdevice/by-name/drm
5968 1096 4668 19% /persist-lg
/dev/block/bootdevice/by-name/mpt
28144 6876 20616 25% /mpt
/dev/block/bootdevice/by-name/cust
76528 12032 62860 16% /cust
/dev/block/bootdevice/by-name/OP
251288 190748 54808 78% /OP
tmpfs 1944804 0 1944804 0% /storage
/data/media 24700020 4053720 20588956 16% /storage/emulated
/mnt/media_rw/7ECE-8B8B
30683136 17020640 13662496 55% /storage/7ECE-8B8B
/dev/block/dm-0 24700020 4053720 20588956 16% /data
/dev/block/loop0 28144 2100 25392 8% /su
/dev/block/vold/public:179,1
30683136 17020640 13662496 55% /data/media/0/opsu

Folder pairs:
Source: /storage/emulated/0/opsu
Destin: /storage/7ECE-8B8B/opsu