i have now achieved static root, changing the /system
# pwd
pwd
/system/xbin
# ls -l
ls -l
-rwsr-xr-x root root 1062992 2013-07-23 20:06 busybox
-rwxr-xr-x root shell 70604 2008-08-01 14:00 dexdump
-rwxr-xr-x root shell 11736 2008-08-01 14:00 fw_loader
-rwxr-xr-x root shell 67736 2008-08-01 14:00 hciconfig
-rwxr-xr-x root shell 189380 2008-08-01 14:00 hcidump
-rwxr-xr-x root shell 40736 2008-08-01 14:00 hcitool
-rwxr-xr-x root shell 31432 2008-08-01 14:00 hidd
-rwxr-xr-x root shell 10360 2008-08-01 14:00 mfgbridge_trigger
-rwsr-xr-x root root 91992 2013-07-23 20:06 su
i am sorry, that i cannot provide you with the installer solution, but im sure someone can put something together to install the replacement /system filesystem here, or actually ask for permission from the guys that made it for the Acer A1-810 on xda developer forum, which is similar to this hack.
the big secret to writing the new filesystem:
1. follow gtvhacker instructions to get temp root on your box.
2. as root do a chmod 777 /dev/block/mmcblk0 ; chmod 777 /dev/block/mmcblk0p11
3. dump the filesystem: /data/local/tmp/busybox cat /dev/block/mmcblk0p11 >/mnt/media/usb.E234-1928/system.fs
4. on a linux box: mount the dumped filesystem (system.fs) with -oloop to be able to modify it.
ie. mount -oloop /tmp/system.fs /tmp/1
5. copy your busybox and su to the /system/xbin/ folder where you mounted the system.fs
6. umount your dumped filesystem from location you mounted it.
7. write back the newly modified filesystem (i renamed it now to system.with_root) .
/data/local/tmp/busybox dd if=/mnt/media/usb.E234-1928/system.with_root of=/dev/block/mmcblk0 seek=149248 bs=4096