[makkonen]

startup.txt from andboot/ is the best one to use, and it should stay in /sdcard/andboot/. You can modify it with 240->210. the one from STARTUP CONFIGS should probably be modified to match it.

(Edit: Like arrrghhh said)

As far as your problems mounting /data, have you tried deleting the data.img, making sure you have 256mb free on the card, and starting again? That doesn't quite sound like the error you're getting, but it's worth a shot.

the latest initramfs has a way to specify a different loop partition (i.e. the partition containing data.img and system.sqsh); before the system runs a fsck on the sd card, it'll say something like

mmcblk0: p1 ...

If it says other things there, you might need to specify a different loop partition.