[afremont]

Could be wrong, but I think maybe I'm boned with the default partitions:

/dev/mmcblk0p1 261868 103368 158500 39% /flash

Looks to me like it's only 260meg...

I can't test mine yet since the wife is using the TV, but I modified the create_sdcard script. I changed the first parted command to create the partition 378MiB and the second one to 380 to make the number modulo 4. That seemed to do it, but I have to boot it before I'll know. Of course that wipes out everything on the card, but I don't mind setting it back up since it's not that difficult to do.

http://paste.debian.net/161994/

Like I said, I haven't tested this just yet, but I don't see why it won't work. The default sizes definitely don't work. And one more time, this will wipe the flash card, so don't use one that has data you want to keep.

EDIT: Be careful running this script as it could wipe out your Pi's sdcard if you get it wrong. I put my new sdcard in a USB adapter and plugged it into my raspbian Pi (B+) and it shows as /dev/sda. Therefore the command to write to the card is:
sudo create_sdcard /dev/sda