DM8168 EZSDK 5.02 boot issue.

I download ezsdk5.02.01.59 and use mksdboot.sh to created a SD boot fs. While I use this one to boot DM8168 dev board. I have following issue:

"VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2)" , and kernel panic.

I use the same way, same 8GB SD card created in ezsdk 5.01 boot the system successfully. I check the SD card not locked.

Then I do the test:

1,mksdboot.sh in ezsdk 5.01, boot no problem;

2,mksdboot.sh in ezsdk 5.02.01.59, boot with kernel panic and same error infor.

What's the different between ezsdk 5.01 and 5.02?

Thanks