There is a bit of information around about upgrading from MOSS to SharePoint 2010 and from WSS to Foundation Server but not a lot about upgrading from WSS to SharePoint 2010 Enterprise.
I just did the upgrade and I can’t believe how easy it is. The only caveat was that my WSS was pretty vanilla and only had a few lists and doc libraries. I don’t guarantee this will work for everyone.
I just followed these steps.
- Back up your content database
- Install SharePoint 2010 but don’t set up a site collection
- Restore your content DB
- Use the Mount-SPContentDatabase command using powershell. The exact instructions for this can be found here. *
- Once the upgrade is complete your site will look like the WSS but you can use the Visual Upgrade from Site Actions to give it the new SP 2010 look.
*If you have never used Powershell before see some gotchas I wrote about here.