Raspberry Pi Ubuntu mate system boot into Emergency Mode

Raspberry Pi 2B re-brush the Ubuntu Mate15.10 system, at first quite normal, and later do not know how to turn on each boot will enter the following screen.

It is estimated that I often directly dial power, violent shutdown caused by,

After a constant groping, finally found a viable way to escape from Emergency Mode:

1. Log in with the root account under emergency mode
2. Executive UMOUNT/DEV/MMCBLK0P2
3. Then execute e2fsck-f-y-v-c 0/DEV/MMCBLK0P2
4. Reboot

Ok.

So here it is recommended not to violence shutdown, or honest sudo poweroff

Also from a foreign site to see a method, but I did not try

Hi!
I had the same issue but I found a solution!
You need another computer under Linux and put your pi sdcard in it.
If your RPI sdcard is/dev/sdb do:
sudo umount/dev/sdb1
sudo umount/dev/sdb2
sudo fsck/dev/sdb1
sudo fsck/dev/sdb2

Raspberry Pi Ubuntu mate system boot into Emergency Mode