[CentOS] OT - hardware - firmware update .iso to flash drive?

Fri Dec 23 21:22:39 UTC 2016
m.roth at 5-cent.us <m.roth at 5-cent.us>

I tried dd'ing the .iso to /dev/sdb. I can mount it, and see the contents
fine, but parted -l says unknown partition. Anyone have a clue it this
will actually boot?

       mark