Upgrading from MX 7 to CF8

[TommyMTL]

Before moving forward to CF8, I would like to know how easy it is to install
and get CF 8 running on an MX7 installation.

What do I need to know?
Does CF7 online sites need something special to run under 8?
thnaks like that

many thanks

[Ian Skinner]

As with most IT answers the answer is 'It Depends'.

Nothing needs to be done to your sites.

Most likely nothing will need to be done if you are doing a true upgrade
from 7 to 8, completely replacing the older version.

But I have read of occasional problems when 7 and 8 where initially set
to run in parallel for testing and what not. Then 7 is removed, the
removal of 7 also removes 8's CFID directory is the usual culprit of
these problems.

[TommyMTL]

assuming that something might happend... (will do!!!)

you suggest to completelly remove 7 befor installing 8?

or just run 8 installer over the 7 installation?

[Ian Skinner]

If you completely remove 7 you will lose all settings, such as DSNs,
mappings, ect. The version 7 and version 8 XML files that store these
settings are not compatible so you can not just copy them over .

If you are comfortable manually re-entering all these settings after the
install, that may not be a big deal.

You may be able to use the CAR (ColdFusion Archive) export/import if you
are on the enterprise edition and|or can downgrade the license to the
developer license for the transfer. But I have never done that cross
versions.

[Adam Cameron]

What sort of CF install are you running? Standard or multi-server? Pro or
Enterprise? What OS?

[TommyMTL]

I am running Entreprise Win2K3, JRun version multiple server

[Adam Cameron]

Post by TommyMTL
I am running Entreprise Win2K3, JRun version multiple server

OK, well a CF8 EAR install will run OK on a CFMX7 JRun4 server. So you
could leave your stuff as CFMX7, create a new instance of CF running CF8,
port your app across (archive the settings form the CFMX& instance and
deploy on the CF8 one), and test your code.

Once the testing of your app is done, back-up the CF8 instance's
cfusion-ear, deinstall JRun, install CF8 multi-server from scratch, create
a new CF8 instance, and replace its EAR file with the one you've backed up.

You'd need a short outage whilst you deinstall JRun and reinstall it
again,.