In my problem, i messed up fstab by own hand, and restore it installing MeGoo(not rescue) on flash, then get access to rootfs.
My aim was not flashing the phone.
So my problem is solved.

In your case to access emms, better use, again, MeGoo, installed on MicroSD card, and boot phone on meego using usb and flasher, then get access to emmc or rootfs.
The easy way is complete reflash you phone, but you lost any data.