newfs

Today I have experienced how to install FreeBSD from a USB device - quite simple so you can do it yourself :-)

First, initialize the USB solid state disk with bsdlabel(8):

bsdlabel -wB /dev/da0

Then, initialize a file system:

newfs -O1 /dev/da0a

Third, copy CDROM’s /boot to it.

And you can now boot from the USB disk.

It turns out that we have to optimize our FS before benchmarking. I have read some articles and maillist archives so I got some impression:

1. Give correct parameters to newfs(1)
   avgfilesize, filesperdir, will control DIRPERF hashing.

2. Turn on noatime mounts.

3. etc.

Just make a note.