I am working on MX6Q SABRESD board,and I have copied u-boot,uImage(use dd command) and rootfs to a SD card and started successfully.
Now I've rebuilt the linux kernel and copyed new image to my SD card(dd if=uImage of=/dev/sdb bs=512 seek=2048 conv=fsync),
but after I started linux,I found the kernel is the old(uname -a).Why?
Besides, I can run the Image both from MMC/SD and NFS. How can I boot use tftpboot(kernel on tftp server) and rootfs on MMC/SD?
Thanks in advance!