How to Fix Eror EFS Note N7000

.How to repair and restore bad EFS  partition folder.

 Instructions:

1.Download an official stock firmware for your phone and flash it in Odin. For Galaxy Note N7000, I flashed the Rom 4.1.2 Jelly bean.
2.Next you need to flash a custom recovery like CWM recovery and also root your device either in recovery or ODIN. For GSII, I used PhilZ CWM.zip recovery which is root ready for your installed firmware.
3.Install ADB on your computer. See How to Install ADB, Fast boot drivers the easier way.
4.Now power on your device into recovery mode ( Press Power Key+Volume up+Home simultaneously)
5.Once in recovery, connect your device to the PC via USB cable.
6.In CWM recovery select “mount and storage > mount /system” (If it indicates “unmount/system” then leave it as that)
7.On the PC, Open ADB command window and type:

adb shell
su
mke2fs /dev/block/mmcblk0p1
mount -w -t ext4 /dev/block/mmcblk0p1
reboot

NOTE: If you get this error: can’t find /dev/block/mmcblk0px in /etc/fstab just ignore, reboot device and cross your fingers that it works. After you run the above ADB commands your device should reboot all the way up and Voila! You should be back up and running again.