[03:42] <infinity> Argh.  I just spent half an hour trying to figure out why my netboot image wasn't writing to my card correctly, before I realised the machine I was writing it on didn't have udev running, and /dev/mmcblk1 was a regular file, not a device.
[03:42]  * infinity head -> desk.
[03:44] <infinity> (At least dd wrote to /dev/mmcblk1 REALLY FAST... That should have been my first clue)