Re: Source level upgrade from 4.9 to CURRENT..

From: Freddie Cash <fjwcash_at_gmail.com>
Date: Tue, 15 Sep 2009 11:49:16 -0700
On Tue, Sep 15, 2009 at 11:33 AM, Adam Vande More <amvandemore_at_gmail.com>wrote:

> On Tue, Sep 15, 2009 at 12:51 PM, Thomas Backman <serenity_at_exscape.org
> >wrote:
>
> > On Sep 15, 2009, at 7:36 PM, Rom Albuquerque wrote:
> >
> >  Hi folks. Need help in doing the following, but first want to check
> >> and see if it is feasible with the latest release, or if I'm just going
> to
> >> be spinning my wheels on this one.
> >>
> >> The Objective.
> >> ==============
> >>
> >> I have a FreeBSD 4.9-RELEASE system which I want to upgrade to 7.X
> >> from the source level. Had a bunch of problems installing 7.1-RELEASE
> from
> >> the CD distribution I got from freebsdmall.com. Several problems that
> >> could not mount the CD at the time of installation causing sysinstall
> >> to halt. So, 4.9 is installed and working, is there a source level
> >> backward compatibility issue between 7.x and anything older than 6.0 ?
> >> In other words, upgrading from the sources with such an old
> >> distribution is a doable task ?
>

You can't go directly from 4.x to 7.x.  You have to do it in multiple steps.

The most conservative method would be:
  4.9 --> 4-STABLE (RELENG_4)
  4-STABLE --> 5.0  (RELENG_5_0_0_RELEASE)

  5.0 --> 5-STABLE (RELENG_5)
  5-STABLE --> 6.0 (RELENG_6_0_0_RELEASE)

  6.0 --> 6-STABLE (RELENG_6)
  6-STABLE --> 7.0  (RELENG_7_0_0_RELEASE)

  7.0 --> 7.2 (RELENG_7_2)

Some of those steps may be possible to skip.

-- 
Freddie Cash
fjwcash_at_gmail.com
Received on Tue Sep 15 2009 - 16:49:18 UTC

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