[vuzero4k] / # ofgwrite -r -m2 /tmp/update-P7pTLe/
Creating /newroot
Mounting /newroot to tempfs
Copying backup_flash.tar.gz to /newroot
Copying ofgwrite_bin to /newroot
Calling /newroot/ofgwrite_bin -r -m2 /tmp/update-P7pTLe/

ofgwrite Utility v4.5.5 NI-Edition
Found vuplus stb: zero4k
Author: Betacentauri
Based upon: mtd-utils-native-1.5.1 and busybox 1.24.1
Use at your own risk! Make always a backup before use!
Don't use it if you use multiple ubi volumes in ubi layer!

Flashing rootfs
Flashing multiboot partition 2
Searching image files in /tmp/update-P7pTLe/ resolved to /tmp/update-P7pTLe
Found rootfs file: /tmp/update-P7pTLe/rootfs.tar.bz2
Found kernel file: /tmp/update-P7pTLe/kernel_auto.bin
Found EXT4 rootfs
Found mounted /newroot
Found mounted /newroot
Found mounted /newroot
Found mounted /newroot
Found mountpoint for rootfs file: /tmp

Found /proc/mtd entries:
Device:   Size:     Erasesize:  Name:                   Image:
Using kernel mtd device:
Using rootfs mtd device:
Read /proc/cmdline
Current rootfs is: /dev/mmcblk0p10
Current kernel is:
Current root sub dir is:

Execute: fdisk -l
Found valid GPT with protective MBR; using GPT

Using /dev/mmcblk0p9 as kernel device
Using /dev/mmcblk0p10 as rootfs device

...