when creating the bootmenu.d file entry for the latest Nemo kernel, what extra boot arguments/options one needs enter in the file to boot Nemo from the SD card ?

or, what manual commands could be tried in the uboot console to boot nemo ?

stskeeps would be the best to answer this I guess, as he was the first person able to create the PR1.3+uboot kernel, able to boot from the external MMC.

Thanks.