Dell PowerVault DL2100 - Manual (Page 10)

Upgrading from Windows Server 2008 x64 to Windows Server 2008 R2 for Symantec Backup Exec
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Figure 10: Downloading appropriate RUU for DL2200
2. If you are performing the OS upgrade on a DL2100 or DL2200, download and install the OS
Driver Pack available present under Lifecycle Controller drop-down.
Figure 11: Downloading the OS Driver pack