Hi all :
Windows Server 2012 already RTM , you may want to install more applications to the Windows Server 2012 . SQL Server 2012 is one of the most important applications！
SQL Server 2012 need .Net Framework 3.5 and .Net Framework 4.0 ; .Net Framework 4.0 is already installed on Windows Server 2012 , so you need to installing .Net Framework 3.5 , even under the Windows Server 2012 OS.
When you installing SQL Server 2012 on Windows Server 2012 , on Feature Selection dialog box , you can see the .Net Framework 3.5 to be turned on :
If you Ignore this step , you may encounter Error Code : -2146498298 , like this :
And the finally , installing failed :
Now I use DISM command tool to check windows server features status :
Dism / online /get-features | more
Run this command , you can see NetFx3ServerFeatures & NetFx3 features not enable :
Use two commands to enable these two features :
Dism /online /enable-feature /featurename:NetFx3ServerFeatures /source:X:\sources\sxs
Dism /online /enable-feature /featurename:NetFx3 /source:X:\sources\sxs
Enable finished , you can check them again :
You can reinstall SQL Server 2012 ,on the Feature Selection dialog box , you can saw .Net Framework 3.5 already installed :
Continue to complete the installation.