DE0 with uClinux

Helo sir,

What i did means

1.Created a new project nd i copy & paste the DE0_Nan0's quartus file.---> save.

2.SOPC builder

3.Pin assignments

4.Downloaded the .sof file-------->working.

5.I tried to download zImage into DE0's SDRAM,

Is this procedure is correct?

if is correct means , where is the mistake?why image is not downloading into SDRAM?Why above error is coming?

Thanks in advance,

alex.