Downgrade FreeBSD 5.1 or 5.2 -> 4.9

Garance A Drosihn drosih at
Thu Jan 22 09:19:11 PST 2004

At 9:01 AM +0100 1/22/04, Sessler, Enrico wrote:
>is there a way to downgrade from FreeBSD 5.1-RELEASE
>or 5.2-CURRENT to the latest 4.x version?

This would be very hard for us to support, and I expect you
will have a lot of trouble trying to do an "in place"
downgrade to 4.x.  You will have much less trouble if you
just resign yourself to backing-up the data you need to some
safe place, and do a fresh install (ie, reformat the drives
using the 4.9 installation discs, and install everything from

I realize that is a lot of work.  However, I am pretty sure
that will be less work than trying to do a "simple downgrade".

>Note: I have no console access to the machines only
>telnet/rlogin. Thus using a boot floppy/CD is not possible.

This makes it even less likely that you will be successful
doing a downgrade to 4.9.

Garance Alistair Drosehn            =   gad at
Senior Systems Programmer           or  gad at
Rensselaer Polytechnic Institute    or  drosih at

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