[MeMO Pad 7 General] vampirefo:
You have to work on your ramdisk, now on BatVille for example if you don't flash root before first boot you can see these.

E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 590):
E/EM FG ALGO Iface:( 590): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 591):
E/EM FG ALGO Iface:( 591): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 592):
E/EM FG ALGO Iface:( 592): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 593):
E/EM FG ALGO Iface:( 593): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 594):
E/EM FG ALGO Iface:( 594): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 595):
E/EM FG ALGO Iface:( 595): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 596):
E/EM FG ALGO Iface:( 596): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 597):
E/EM FG ALGO Iface:( 597): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 598):
E/EM FG ALGO Iface:( 598): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 599):
E/EM FG ALGO Iface:( 599): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 600):
E/EM FG ALGO Iface:( 600): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 601):
E/EM FG ALGO Iface:( 601): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 602):
E/EM FG ALGO Iface:( 602): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 603):
E/EM FG ALGO Iface:( 603): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
E/sdcard ( 245): missing packages.list; retrying
E/EM FG ALGO Iface:( 604):
E/EM FG ALGO Iface:( 604): Failed to get File Descriptor
E/sdcard ( 245): missing packages.list; retrying
vampirefo@vampirefo-GA-MA78GM-US2H:~/Desktop$

Simply looking for root packages, this is the way I packaged it, i708q doesn't look for root, however the twrp image includes root, and that root may not be compatible toward your device, as the twrp backup and root are directly from my ares 8.

For you, I recommend either flashing i708q rom the latest zip version not twrp backup, or Batville, If you choose BatVille install root before first boot on BatVille.

You can get BatVille from below thread. Do not run the partitioning tools on your device, they are only for ares 8, only use the rom BatVille and supersu from thread, edit your boot.img as needed.

http://xdaforums.com/android/development/partition-ares-8-tablet-linux-windows-t3327595