Shrinked data partition

[harsh panchal]

I'm compiling AOSP jellybean (4.1.2_r2) build for my device (GT-i9070). I was able to boot it but i can notice that my data partition is only few MBs now (original size is 2GB). Rest of the partitions are ok. df command also shows 300 MB where as cat /proc/partitions shows size of mmcblk0p5 (mounted as /data) 2GB.

I also noticed one more thing that after every reboot, my data on /data is lost so every reboot is acting like a hard reset.

Any ideas?
Am i missing anything?

[Rohit Kumar]

You might have missed mounting your userdata

[Jonathan Clavin]

Are you fastboot flashing userdata.img? Make sure your BOARD_USERDATAIMAGE_PARTITION_SIZE size is correct in your BoardConfig.mk.