Raspberry Pi 2B and SSD drive

[Per olof Ljungmark]

FBSD 11.2-RC1

How can I make good use of a USB SSD drive connected to the Pi?

For instance, can I start from the SD card and then hand over everything
to the SSD drive? From googling it does look like it is possible.

Thanks!

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Yes, but....

The but being that it's still USB attached and won't be nearly as fast
as you expect.

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Subscribed to the list now...

I am not concerned about the performance, it is the wear.

So, how do one load the OS from the SSD? I suppose I could boot the OS
from the SD card and place most other filesystems on the SSD but would
prefer to load the OS from the SSD drive.

Have a feeling the mysterious /boot/msdos/config.txt is involved but I
fail to locate any documentation, if there is one?