hello
I'm trying to build entire linux image(preloader, bootloader, kernel ...etc)for DE1-Soc board.
first I thought I should understand the whole booting sequence, I planned to boot only preloader first.
I made preloader-mkpimage.bin by altera 13.0 EDS BSP editor, and used dd command to copy preloader binary to sd card.
(my host computer is window 7 , so I made preloader-mkpimage on window, and used dd command on ubuntu virtual machine)
the sd card initially has one partition with id W95 FAT32
the command was : sudo dd if=preloader-mkpimage.bin of=/dev/sdX bs=64k seek=0.
But I don't see any terminal message so it seems not working ..
what I tried to experiment is simple
1. write preloader image to sd card and see if board only boots preloader.
..
I guess the problem is preloader image is not valid although it has mkpimage signature.
but preloader is generated by altera tools and I want to believe the preloader binary is fine ..
I'm really struck here,, any advice?
thanks in advance.
