IIS 6.0 on Windows Server 2003: Installation and the Operating System Page 2
The Upgrade and Potential Pitfalls
Direct upgrades to Windows Server 2003 are possible from the following versions of Windows:
- Windows NT Server 4.0 with Service Pack 5 or later
- Windows NT Server 4.0, Terminal Server Edition, with Service Pack 5 or later
- Windows 2000 Server
When upgrading, there is one gotcha where Remote Storage is concerned. Remote Storage is not included on Windows Server 2003 Standard Edition, and if you are using Windows 2000 Server (not Advanced Server, but just "Server") with Remote Storage, you will not be able to install an upgrade to Windows Server 2003 Standard Edition. You will have the option to either upgrade directly to Windows Server 2003 Enterprise Edition or to remove Remote Storage (through Add/Remove Programs in Control Panel) from the current installation of Windows 2000 Server.
If you remove Remote Storage you can then upgrade to Windows Server 2003 Standard Edition. The other option is to install Windows Server 2003 Standard Edition as a new installation, which will effectively allow you to configure the server in a dual-boot configuration.
Upgrade installations to Windows Server 2003 are also not possible from Windows 9x, ME, NT Workstation, 2000 Professional, and XP Home or XP Professional. However, clean installations over the current operating system installations are possible. You can also perform a clean installation of Windows Server 2003 Standard Edition as a new installation to another partition, which effectively allows you to configure the server in a dual boot configuration.
(Note: Although dual-boot configurations are allowed, they are not recommended on production servers for security reasons.)
Also, if you have Windows NT 4.0 Server Enterprise Edition running Service Pack 5 or later, you can upgrade directly to Windows Server 2003 Enterprise Edition, but not to Windows Server 2003 Standard Edition. A clean installation to Windows Server 2003 Standard Edition is available. If you have a version of Windows NT earlier than 4.0, such as Windows NT Server 3.x, you cannot upgrade directly to any product in the Windows Server 2003 family. You must first upgrade to Windows NT 4.0, apply Service Pack 5, and then perform a direct upgrade if desired. (This is not recommended, however.)
There is also a known issue with Windows Server 2003 on some Pentium Pro or Pentium II dual-processor or multiple-processor servers where the server may fire up with only one processor.
This situation may occur if you upgrade from Windows NT 4.0 or Windows 2000 to Windows Server 2003. The error message of "Unsupported Multiprocessor Configuration" will be displayed according to Microsoft Knowledge Base Article - 319091.
The Unsupported Multiprocessor Configuration issue affects the following Intel processors:
x86 Family 6 Model 1 Stepping X GenuineIntel (where X = 1, 2, 6, 7, or 9) x86 Family 6 Model 3 Stepping X GenuineIntel (where X = 3 or 4)
When you perform the compatibility check after upgrading the operating system you may receive the following message if you are using these processors:
"Microsoft Windows Server 2003 family of operating systems and the processors
The upgrade will continue, but on completion, Windows Server 2003 will operate with only a single processor.
Not very much information is available on this, and the only real solution to the issue is to use processors with different revision levels.
Also important to remember is that when a FAT16 partition is in use it will normally require you to supply 100 MB to 200 MB of additional free disk space than FAT32 or NTFS (which is the recommended file system for any Server deployment) do because of the cluster sizes in use on 2 GB FAT16 partitions.For a discussion of file system options and advantages and disadvantages of each, please see our related article, "Understanding File System Options."