physdiskwrite v0.5.2 by Manuel Kasper <firstname.lastname@example.org>
Searching for physical drives...
Information for \\.\PhysicalDrive0:
Windows: cyl: 14593
Information for \\.\PhysicalDrive1:
Windows: cyl: 243201
Firmware rev.: CC4C
Information for \\.\PhysicalDrive2:
Windows: cyl: 981
Which disk do you want to write? (0..2) 2You need to decide which of the drives shown is the one to dump the FreeNas image on.
WARNING: that disk is larger than 2 GB! Make sure you're not accidentally
overwriting your primary hard disk! Proceeding on your own risk...
About to overwrite the contents of disk 2 with new data. Proceed? (y/n) y
Whatever drive you select will be totally overwritten. Totally!
I can see that drive 2 is the smallest drive (8GB), i.e. my USB stick, so I enter '2' and press ENTphydER.
Please note that there mustn't be any partitions at all on the USB stick.
If there are, you will get an error complaining that it failed to write after 0 bytes (or some such).
To completely empty the USB stick, do the following
1) Open a command prompt (but do so as an admin)
2) Enter diskpart
3) Enter List disk
(this will list your disks and allow you to find the drive number of your USB stick)
4) Enter Select disk N
(where N is the disk number of the USB stick. See screen dump and notes above)
5) Enter Clean
You can now install FreeNas on your hardware by booting on your newly-created USB stick.
In my case it is an HP Proliant N40L.
I have updated its BIOS as described in this article.
FreeNas v8 tips and tricks can be found here.
How to mount an external USB disk