Reapply the master boot record and the boot sector. Step 8: Make the selected partition active (bootable) Step 7: List the partition, then select the Windows partition on the selected disk. Step 6: From the available disks, select the disk that contains the Windows installation. Step 5: While in the diskpart utility, list available disks. Step 4: From the command line, the first task is to make the Windows partition a bootable partition.
On the following screen, select the Command Prompt option. Step 3: At this point, the repair procedure will not detect the desired Windows installation and will present none to select, even after storage drivers are loaded. Step 2: On the main screen, select Next and then Repair Your Computer. Step 1: Boot the server using the Windows installation media. The following procedure will allow the Windows BootMgr configuration to be recovered after a Bare Metal restore so that the server will boot properly. In a configuration where the Windows system partition and the BootMgr partition are on the same physical disk, a Bare Metal backup and restore will complete successfully, since both partitions will be backed up and restored together. The System Reserved partition containing the Windows BootMgr will not be backed-up since it is on a separate physical disk. Therefore, in this configuration, a Bare Metal backup will only back up the partition containing C:\Windows. An Active partition is a bootable partition. The partition containing C:\Windows is not marked as Active and the System Reserved partition on disk 3 is marked Active.
The Windows system partition C:\Windows is on disk 0 and the Windows BootMgr has been installed on disk 3 in a partition named System Reserved. Below is a configuration where this is the case: If the server contains multiple internal hard drives, then the Windows installer may place this partition on a disk different from the Windows system. By default, the Windows installer places these components into a small partition separate from the partition that contains the Windows system. In these cases, the probable cause of the boot failure is that the Windows bootmgr and Boot Configuration Database (BCD) were not restored during the Bare Metal restore. When a system will not boot following a Bare Metal Restore After completion of the BIOS post routines, the system remains at a blank console screen without attempting to boot from any internal hard drive.Īfter completion of the BIOS post routines, the boot procedure fails with a message similar to Windows Server 2008 Symptoms / Description This article addresses how to resolve a “BOOTMGR missing”error following a Bare Metal restore of a Windows 2008 server. "BOOTMGR missing" or "Operating system not found" after Windows Server 2008, 2012 Bare Metal restore ISSUE
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