Hi,

What is the recommended method for updating Joomla from 1.7 to 2.5?

Currently using MultiSites 1.2.72.

Thanks,

Alistair.

For the moment, I can just tell you to see the Joomla documentation concerning the upgrade method and in particular the manual upgrade method.

Okay, I understand that bit.

Is it best to update MultiSites to latest version before updating Joomla or after?
Should we uninstall patches before updating Joomla/MultiSites?

Thanks.

Concerning the Joomla core (not the third party extension);

You can update the Joomla with the "extension manager" / update

OR unzip the standard joomla distribution in the root of your master.
Before unzip the joomla distribution, rename the existing "/installation" into "/installation_jms".
Unzip the joomla.tar.gz or joomla.zip

Rename the "/installation" into "/installation_original"

Login in the back-end of the master (/administrator/index.php)

Go in JMS and re-install the patches
When done, you have a new "/installation" directory restored.
Remove or rename this one to re-use the original one (in case you have a specific language version - not the english one).
Rename "/installation" into "/installation_jms25"
Rename "/installation_original" into "/installation"

When done, return in JMS patches to install the patch into the "installation".

After that, go in the new "extension manager" / database checking and fix the DB layout.

Repeat the "extension maanager" / database / fix for each slave sites.

After that, you should have all your websites updated with Joomla 2.5 and the new database layout.