Does dd or Windows Image Writer work regardless whether the target device was formatted or partitioned correctly?
I'm trying to flash a Chromium OS build to a USB flash drive following these instructions.
Yes (you don't need to partition the drive). When you write directly to a block device (
I haven't ever used (or heard of) Windows Image Writer, but if it's similar to dd, it writes raw data to the drive, regardless of what was present before.