The following table highlights the minimum requirements of Windows SharePoint Services (WSS) 3.0 and SharePoint Foundation (SPF) 2010 for preliminary upgrade planning for SPF2010. Since SPF2010 is the underlying infrastructure for SharePoint Server (SP) 2010, information presented here is applicable to upgrade planning for SP2010 as well.
Notice that the following scenarios are not supported in upgrading to SPF2010:
For production deployment, please do reference the links in Official Requirements of the table to get the latest information.
Component
Minimum Requirements
WSS 3.0
SharePoint Foundation 2010
Processor
2.5 GHz
64-bit, four cores
RAM
1 GB
4 GB for developer or evaluation use
8 GB for single server and multiple server farm installation for production use
For large deployments, see the "Estimate memory requirements" section in Storage and SQL Server capacity planning and configuration (SharePoint Server 2010).
Hard Disk
3 GB for installation
80 GB for system drive
For production use, you need additional free disk space for day-to-day operations. Maintain twice as much free space as you have RAM for production environments. For more information, see Capacity management and sizing for SharePoint Server 2010.
OS
Windows Server 2003 (Standard, Enterprise, Datacenter and Web editions)
Windows Server 2008 (as of WSS 3.0 SP1)
64-bit edition of Windows Server 2008 Standard with SP2
Database
SQL 2000 SP4
SQL 2005 SP2
SQL 2008 (as of WSS 3.0 SP1)
64-bit SQL 2005 with Service Pack 3 (SP3) with Cumulative update package 3 for SQL Server 2005 Service Pack 3
64-bit SQL 2008 with Service Pack 1 (SP1) and Cumulative Update 2 installed with Cumulative update package 2 for SQL Server 2008 Service Pack 1
Official Requirements
http://technet.microsoft.com/en-us/library/cc288955(office.12).aspx
http://technet.microsoft.com/en-us/library/cc288751(office.14).aspx including software prerequisites
Download
WS2008 R2 Trial,
SQL2008 R2 Trial,
SPF2010,
SP2010 Trial,
Technical Libraries
is a free download from Microsoft. It is a low-cost entry-level Web-based collaboration solution for small organizations or departments. SharePoint Foundation (SPF) 2010 is the underlying infrastructure for SharePoint Server 2010 and the new version of Microsoft Windows SharePoint Services (WSS) 3.0. Frequently SPF is also used as a pilot or proof of concept before enterprise roll-out of a SharePoint solution.
Almost everything an IT pro needs to know about SPF including requirements, what’s new, Getting Started, planning, deployment, and operations is in a technical library on the web and in Help (or chm) format for downloading as shown below. Similarly technical libraries of SharePoint Server 2010 on the web and in Help format are also available. These technical libraries are must-have references and my recommended bedtime readings for IT pros serious about SharePoint.
Notice in the Help format version, once downloaded if the text in the Help file does not appear as expected, instead "Navigation canceled," "Action canceled," or "The page cannot be displayed" is displayed, please proceed with the following steps to unlock the file:
(A cross-posting from Yung Chou on Windows Technologies)
Office Web Apps are online companions to Word, Excel, PowerPoint, and OneNote giving you the freedom to work on Microsoft Office documents with browsers. This screencast gives a high-level overview of the requirements to deploy Office Web Apps in a SharePoint environment, what is a SkyDrive, how you can experience Office Web Apps today, etc. Additional information is also available from the post, Office Web Apps with SharePoint 2010 or SkyDrive Explained.
(A cross-posting from Microsoft TechNet Edge)