Machine is a custom at91sam9g45 board with NOR and NAND flash. The bootstrap loader and barebox, and barebox environment are in the NOR flash. All seems to be working well there. The NAND is partitioned into 2 chunks: 2560K(kernel),-(root)

I used ubimkvol to create a volume on root and the nfs command to put a root filesystem on it. Seems to work fine if I get the kernel via NFS.

I have a good working kernel in uImage format, and used “nfs  /var/share/uImage  /dev/nand0.kernel.bb” in an attempt to write it to the 2560K partition. The nfs copy seemed to work fine. However, it will not accept the image. I get messages about an unknown format, suggesting to try –f. Was it the wrong procedure that I used to copy the uImage ?

Thanks for any help or pointers.

George