src upgrading jails (no ezjail, no "service" jails)

[Aleksandr Miroslav]

On Wed, Jun 1, 2011 at 9:11 AM, Greg Larkin <glarkin at freebsd.org> wrote:
> > I have 4 jails that are running 8.2-RELEASE that I would like to
> > upgrade.
> >
> > I did not create the jails using ezjails
> > I did not create the jails using the "template" method
>
> You can do this:
> cd /usr/src
> make installworld DESTDIR=<jaildir1>
> make distribution DESTDIR=<jaildir1>

Would this not overwrite the data I already had in the existing jails?

Also, presumably, I would have to run mergemaster in jail after doing
this, correct?

Alex