Dual-boot FreeBSD 4.x/5.x

[Jerry McAllister]

> 
> 
> Is it possible to dual boot FreeBSD 4.9 and 5.2.1 on one system, each
> using a different / partition, but sharing the same /usr partition for
> example?  I'd really like to try out some of the features of 5.x, but be
> able to easily go back to 4.9 if I find it too unstable.

I don't think you could really "share" a /usr partition between
the two systems.  There are too many differences.   Anyway, you
could not install binaries for one and expect them to run in the
other.

////jerry

> 
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