This is one method I have written down. (For instance, if you mount flashdrives on /flashdrive, you can put how.txt in /flashdrive for instructions before the use of the flash drive
Code:
kldload ehci.ko
(insert flash drive, wait until it's light stops blinking if it has one)
camcontrol rescan all
mount -t msdosfs /dev/da0s1 /flashdrive
mount -t msdosfs /dev/da0 /flashdrive
mount -t msdosfs /dev/da0s1 /flashdrive
(multiple attempts so the system has time, and reason, to probe..)
(that is for fat32 on the flash drive of course, ...)
... and
may change depending upon your v7 v8 v9 version, whether it was an initial install or an upgrade, etc.