I found this while having a similar problem and even reflashed my device to try and fix it.. but for me, the solution was... to edit the bootmenu.conf file and add options both memory cards. Oops. I had the good sense to copy the cloned partition beforehand onto my laptop, but eh, what the heck, it's a new version of Nokia's firmware anyway.

Key point is, for me, even though the "mount" command showed (and still shows!) the partition I had formatted as "/dev/mmcblk0p2", the bootmenu.conf has to have it as "/dev/mmcblk1p2". (This may have been mentioned by others before, but I missed it if so.)