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Yes you will have to reinstall it, see the following migration guide which will step you through the process:<br />
<a href="http://www.microsoft.com/downloads/details.aspx?FamilyID=52b7ea63-78af-4a96-811e-284f5c1de13b" rel="ugc">http://www.microsoft.com/downloads/details.aspx?FamilyID=52b7ea63-78af-4a96-811e-284f5c1de13b</a>
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Yes you will have to reinstall it, see the following migration guide which will step you through the process:
http://www.microsoft.com/downloads/details.aspx?FamilyID=52b7ea63-78af-4a96-811e-284f5c1de13b [http://www.microsoft.com/downloads/details.aspx?FamilyID=52b7ea63-78af-4a96-811e-284f5c1de13b]

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Understood.<br />
I have already prepaired the source server and created an answer file. <br />
I ran the patch that will allow me to keep the legacy server on line for 21 days.<br />
Is there any risk running the ionitial setup and migration during production hours.<br />
I would like to get it running tomorrow, and then do Exchange and File migration after hours
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Understood.
I have already prepaired the source server and created an answer file.
I ran the patch that will allow me to keep the legacy server on line for 21 days.
Is there any risk running the ionitial setup and migration during production hours.
I would like to get it running tomorrow, and then do Exchange and File migration after hours

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We purchased a Dell PowerEdge 2900 running SBS 2008 (OEM preinstalled)<br />
Will I have reinstall the OS to use MIgration Mode?<br />
The current setup will not allow the use of the existing domain.
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We purchased a Dell PowerEdge 2900 running SBS 2008 (OEM preinstalled)
Will I have reinstall the OS to use MIgration Mode?
The current setup will not allow the use of the existing domain.

Migrate To SBS 2008 (OEM) on Dell PowerEdge 2900

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).